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USEFUL LINKS

Here are some links that we found useful and thought you might too, these links are tools such as maps and downloadable data sets that are helpful across the various areas of geology and mining:

 


 

Company Research

ASX - Company Research

http://www.asx.com.au/research/company-research.htm

 


 

Mining

IRTM (interactive resource and tenure maps):

http://mines.industry.qld.gov.au/geoscience/interactive-resource-tenure-maps.htm

Geological Survey of Queensland Projects:

http://mines.industry.qld.gov.au/geoscience/gsq-projects.htm

 


 

Environmental

QLD

Spatial Information on Queensland:

http://www.derm.qld.gov.au/mapping/index.html

Queensland Government Information Services-can get environmental and land use things from here such as property boundaries and EREs:

http://dds.information.qld.gov.au/DDS/Search.aspx

Maps of Environmentally Sensitive Areas

http://www.ehp.qld.gov.au/licences-permits/maps_of_environmentally_sensitive_areas.php

 


 

Geochemical

 WA

WA Geochem

http://geochem.dmp.wa.gov.au/geochem/

 


 

Geological/Geophysical

National

Geoscience Portal

http://www.geoscience.gov.au/about.html

GADDS (Geophysical Archive Data Delivery System)

http://www.geoscience.gov.au/bin/mapserv36?map=/public/http/www/geoportal/gadds/gadds.map&mode=browse

Geological Maps

http://www.geoscience.gov.au/cgi-bin/mapserv?map=/nas/web/ops/prod/apps_www-d/mapserver/geoportal-geologicalmaps/index.map&mode=browse&layer=map250&queryon=true

Geoscience Australia

https://www.ga.gov.au/products/servlet/controller?event=DEFINE_PRODUCTS

Airborne Geophysics

http://www.ga.gov.au/geophysics-argus/

http://www.ga.gov.au/productsearch/textonly.jsp

http://www.ga.gov.au/webtemp/image_cache/GA14450.pdf

NASA World - GA Geophysics including Radiometrics

http://www.ga.gov.au/products-services/maps/interactive-3d-models/world-wind-3d-data-viewer.html

USGS Landsat Site

http://earthexplorer.usgs.gov/

 

Geological/Geophysical - QLD

QLD Geological Maps and notes:

http://mines.industry.qld.gov.au/geoscience/geological-maps-notes.htm

QLD 100k/250k scanned in sheet maps:

http://www.geoscience.gov.au/cgi-bin/mapserv?map=/nas/web/ops/prod/apps_www-c/mapserver/geoportal-geologicalmaps/index.map&mode=browse&layer=map250&queryon=true

 

Geological/Geophysical - NSW

NSW Geological Maps and notes:

http://www.resources.nsw.gov.au/geological/geological-maps

NSW Regional Geology

http://www.resources.nsw.gov.au/geological/overview/regional#orogens

NSW Geophysics

http://www.resources.nsw.gov.au/geological/geophysical-images-data

NSW Statewide geoscience data packages

http://www.resources.nsw.gov.au/geological/gis-data-packages

GADDS (NSW Geophysical Archive Data Delivery System)

http://www.geoscience.gov.au/bin/mapserv36?map=/public/http/www/geoportal/gadds/gadds.map&mode=browse

Handy Help

http://www.resources.nsw.gov.au/__data/assets/pdf_file/0008/289511/MORIARTY_Online_Information_EITH2009.pdf

 

Geological/Geophysical - WA

WA Geological Maps (50K, 100K, 250K)

http://geodownloads.dmp.wa.gov.au/seriesmapping/digitalgeology_enh2.asp

WA Geological Downloads (mosaic, geophys, geochem, etc.) http://geodownloads.dmp.wa.gov.au/datacentre/datacentreDb.asp

WA Mines, Projects, Prospects history (MINEDEX)

http://minedexext.dmp.wa.gov.au/minedex/external/common/appMain.jsp

WA Airborne Geophysics Index (MAGIX)

http://www.dmp.wa.gov.au/4030.aspx

http://www.dmp.wa.gov.au/14374.aspx

 


 

Tenements

WA

MTO (Mineral Tenements Online)

http://www.dmp.wa.gov.au/3968.aspx

Interactive Maps (GeoVIEW.WA)

http://www.dmp.wa.gov.au/7113.aspx

Data Centre

http://geodownloads.dmp.wa.gov.au/Datacentre/datacentreDb.asp

 

Name Chemistry Crystal System Density (Min) Density (Max) Hardness (Min) Hardness (Max) Notes
Acanthite Ag2S Mon 7.2 7.4 2 2.5 Low temperature Ag2S, 87% Ag
Achroite 0 0 0 0 Colourless tourmaline
Acmite NaFe3+Si2O6 Mon 3.4 3.6 6 6.5 A pyroxene
Actinolite Ca2(Mg,Fe)5(Si8O22) (OH)2 Mon 3 3.24 5 6 Tremolite with >2% Fe
Adularia KA1Si3O8 0 0 0 0 Clear orthoclase
Aegirine NaFe3+Si2O6 0 0 0 0 Impure acmite, generally green to black in colour
Agate 0 0 0 0 Banded chalcedony
Alabandite MnS Iso 3.95 4.04 3.5 4 Black
Alabaster 0 0 0 0 Massive f.gr. gypsum
Albite NaAlSi3O8 Tric 2.6 2.65 6 0 Na rich plagioclase, Ab100 to Ab90 An10
Alexandrite 0 0 0 0 Gem chrysoberyl
Allanite (Ce,Ca,Y) (Al,Fe)(Si2O3) (SiO4)O(OH) Mon 3.5 4.2 5.5 6 About 28% REO
Allemontite AsSb Trig 5.8 6.2 3 4 One cleavage
Allophane Al2O3(SiO2)1.3-2.0·2.5-3.0H2O Amor 1.85 1.89 3 0 Claylike mineral
Almandine (Fe2+)3Al2(SiO4)3 Iso 4.318 0 7 7.5 A red garnet
Altaite PbTe Iso 8.19 0 2 3 Tin – white, rare
Alumstone 0 0 0 0 Alunite
Alunite K Al3(SO4)2(OH)6 Trig 2.6 2.9 3.5 4 11.4% K2O, 37% Al2O3
Amazonite 0 0 0 0 Green to blue green microcline
Amblygonite LiAlPO4F Tric 3.04 3.11 5.5 6 About 10% Li2O, 48% P2O5
Amethyst SiO2 0 0 0 0 Purple quartz. The colour is caused by iron impurities in the 10s to 100s parts per million range
Amosite Fe,Mg,Si,O,OH 0 0 0 0 A fibrous variety of grunerite
Amphibole group 0 0 0 0 See actinolite, antho- phyllite, arfvedsonite, cummingtonite, glauco- phane, horn-blende, riebeckite, tremolite
Analcime Na(AlSi2)O6)·H2O Tric 2.24 2.29 5 5.5 A zeolite
Anatase TiO2 Tet 3.79 3.97 5.5 6 Low temperature TiO2
Anauxite Al2OSiO4 Mon 2.6 0 2 0 Si-rich kaolinite
Andalusite Al2SiO5 Orth 3.13 3.16 7.5 0 Often as square prisms. 63% Al2O3
Andesine (Na,Ca)(Si,Al)4O8 Tric 2.69 0 6 6.5 A plagioclase feldspar
Andradite Ca3(Fe3+)2(SiO4)3 Iso 3.8 3.9 6.5 7 Calcium-iron garnet
Anglesite PbSO4 Orth 6.37 6.39 2.5 3 Secondary, often banded. 68% Pb
Anhydrite CaSO4 Orth 2.89 2.98 3 3.5 41% CaO
Ankerite CaFe2+(CO3)2 Rho 2.93 3.1 3.5 4 Dolomite with Fe>Mg
Annabergite Ni3(AsO4)2·8H2O Mon 3.07 0 1.5 2.5 Nickel bloom. 29% Ni, 25% As
Anorthite CaAl2Si2O8 Tric 2.74 2.76 6 6.5 Ca-rich plagioclase, An100 to An90 Ab10
Anorthoclase (Na,K)AlSi3O8 Tric 2.58 0 6 6.5 Like orthoclase, with Na>K
Anthophyllite []Mg7Si8O22(OH)2 Orth 2.85 3.57 5.5 6 White, greenish grey, green, clove brown, or brownish green amphibole var. of asbestos
Antigorite Mg3Si2O5(OH)4 Mon 2.5 2.6 3.5 4 Platy serpentine
Antimony Sb Trig 6.61 6.71 3 3.5 Cl (0001)
Antlerite (Cu2+)3SO4(OH)4 Orth 3.9 0 3.5 4 Secondary Cu mineral of arid regions
Apatite Ca5(PO4,CO3)3(F,OH,Cl) Hex 3.15 3.2 5 0 38 - 42% P2O5
Apophyllite (K,Na)Ca4Si8O20(F,OH)· 8H2O Tet 2.33 2.37 4.5 5 Secondary, in basic lavas
Aquamarine Be3Al2Si6O18 0 0 0 0 Pale greenish-blue transparent beryl
Aragonite CaCO3 Orth 2.95 0 3.5 4 Cl (010), (110). 56% CaO
Arfvedsonite NaNa2[(Fe2+)4Fe3+] Si8O22(OH)2 Mon 3.3 3.5 6 0 Na amphibole
Argentite Ag2S Mon 7.2 7.4 2 2.5 Sectile, 87% Ag
Arsenic As Trig 5.63 5.78 3.5 0 Cl (0001)
Arsenopyrite FeAsS Mon 6.07 0 5.5 6 Pseudo-orth. 46% As
Asbestos 0 0 0 0 See amosite, antho- phyllite, chrysotile, crocidolite, tremolite
Asbolite Cobaltian wad Amor 2.9 4.3 0 0 To 15% Co
Atacamite Cu2Cl(OH)3 Orth 3.75 3.77 3 3.5 Cl (010). 59% Cu
Augite (Ca,Mg,Fe)2(Si,Al)2O6 Mon 3.19 3.56 5.5 6 Common pyroxene
Aurichalcite Zn5(CO3)2(OH)6 Mon 3.96 0 1 2 14 - 23% Cu, 36 - 47% Zn
Autunite Ca(UO2)2(PO4)2·10-12H2O Orth 3.05 3.2 2 2.5 Yellow-green, fluorescent, 67% U3O8
Awaruite Ni3Fe Iso 7.8 8.2 4 5 Magnetic
Axinite Ca2(Mn,Fe,Mg)Al2BSi4O15. (OH) Tric 3.27 3.35 6.5 7 Crystal angles acute
Azurite Cu3(CO3)2(OH)2 Mon 3.77 0 3.5 4 Always blue. 55% Cu
B 0 0 0 0
Baddeleyite ZrO2 Mon 5.4 6.02 6.5 0 Minor Zr source
Balas ruby 0 0 0 0 Red gem spinel
Baryte BaSO4 Orth 4.5 0 3 3.5 Cl (001), (110). 65.7% BaO
Bastnäsite (Ce,La)(CO3)(F) Hex 4.9 5.2 4 4.5 75% REO
Bauxite 0 0 0 0 A mixture of aluminium hydroxides/ oxides
Beidellite (Na,Ca)0.3Al2(Si,Al)4O10(OH)2 •nH2O Mon 2.6 0 1 2 Al-rich montmorillonite
Bentonite 0 0 0 0 An impure clay, primarily montmorillonite
Beryl Be3Al2(Si6O18) Hex 0.63 2.92 7.5 8 14% BeO
Biotite K(Mg,Fe2+)3(Si3Al) O10(OH,F)2 Mon 2.7 3.3 2.5 3 Common black mica of the biotite-phlogopite series
Bismite Bi2O3 Mon 8.64 9.22 4.5 0 72% Bi
Bismuth Bi Trig 9.7 9.8 2 2.5 Cl (0001)
Bismuthinite Bi2S3 Orth 6.78 0 2 2.5 Cl (010). 81% Bi
Bismutite Bi2O2(CO3) Orth 6.7 7.4 2.5 3.5 75% Bi
Black Jack 0 0 0 0 Sphalerite
Blende 0 0 0 0 Sphalerite
Bloodstone 0 0 0 0 A dark green/greenish- blue chalcedony with small red blood-like spots
Blue vitriol 0 0 0 0 Chalcanthite
Böehmite AlO(OH) Orth 3.02 3.05 3.5 0 In bauxite. 85% Al2O3
Boracite Mg3B7O13Cl Orth 2.91 3.1 7 7.5 62% B2O3
Borax Na2B4O5(OH)4·8H2O Mon 1.7 0 2 2.5 Cl (100). 36.5% B2O3
Bornite Cu5FeS4 Orth 5.06 5.09 3 0 Purple-blue tarnish. 63.3% Cu
Boulangerite Pb5Sb4S11 Mon 6.2 0 2.5 3 55% Pb, 25% Sb
Bournonite PbCuSbS3 Orth 5.83 0 2.5 3 Easily fusible. 13% Cu, 42% Pb, 25% Sb
Brannerite (U4+,REE,Th,Ca) (Ti,Fe3+)2(O)6 Mon 4.2 5.43 4.5 5.5 30 - 50% U3O8
Braunite Mn2+(Mn3+)6SiO12 Tet 4.72 4.83 6 6.5 64% Mn
Bravoite (Ni,Fe)S2 Iso 4.62 4.72 6.5 0 Steel grey. 24% Ni
Brazilian emerald 0 0 0 0 Green tourmaline
Brittle mica 0 0 0 0 See chloritoid, margarite, ottrelite
Brochantite Cu4(OH)6SO4 Mon 3.97 0 3.5 4 A common secondary copper hydroxy sulfate. 56% Cu
Bromargyrite AgBr Iso 6.474 0 2.5 0 Chlorargyrite Group. 57 - 65% Ag
Bronzite Ca(Mg,Al)3(Al,Si)4O10(OH)2 Orth 3.1 3.3 5.5 0 Enstatite with 5 - 13% FeO
Brookite TiO2 Orth 4.08 4.18 5.5 6 Adamantine lustre
Brucite Mg(OH)2 Trig 2.39 0 2.5 3 Cl (0001). 69% MgO
Bytownite (Ca,Na)(Si,Al)4O8 Trig 2.74 0 6 6.5 A plagioclase feldspar
C 0 0 0 0
Cairngorm 0 0 0 0 Smoky to black quartz
Calamine Zn4Si2O7(OH)2·H2O 0 0 0 0 Hemimorphite
Calaverite AuTe2 Mon 9.1 9.4 2.5 3 Easily fusible. 42% Au
Calcite CaCO3 Trig 2.7102 0 3 0 Fluorescent, Cl (1011), 56% CaO
Californite 0 0 0 0 Gem idocrase
Calomel HgCl Tet 7.15 0 1.5 2 85% Hg
Cancrinite (Na,Ca,[])8(Al6Si6) O24(Co3,SO4)2·2H2O Hex 2.42 2.51 5 6 A feldspathoid
Capillary pyrites 0 0 0 0 Millerite
Carnallite KMgCl3·6H2O Orth 1.6 0 2.5 0 9.1 - 9.4Deliquescent. 16.8% K2O, 14.6% MgO
Carnelian 0 0 0 0 Red chalcedony
Carnotite K2(UO2)2(VO4)2·3H2O Mon 4.7 0 2 0 50% U3O8, 20% V2O5
Cassiterite SnO2 Tet 6.98 7.01 6 7 Lustre adamantine. 78.6% Sn
Cat’s-eye 0 0 0 0 Gem variety of chrysoberyl or quartz
Celestine SrSO4 Orth 3.96 3.98 3 3.5 56% SrO
Celsian BaAl2Si2O8 Mon 3.1 3.39 6 6.5 Feldspar with 41% BaO
Cerargyrite AgCl Iso 5.5 6 2.5 0 Perfectly sectile. 65 - 75% Ag
Cerussite PbCO3 Orth 6.53 6.57 3 3.5 Effer. in HNO3. 77% Pb
Cervantite Sb2O4 Orth 6.6 0 4 5 After stibnite. 79% Sb
Chabazite (Ca,K,Na)(Si,Al)3O6·3H2O Tric 2.05 2.2 4 5 Chabazite now is the name of a series of related minerals
Chalcanthite CuSO4·5H2O Tric 2.286 0 2.5 0 Soluble in water. 35% Cu
Chalcedony 2.6 2.64 0 0 Cryptocrystalline quartz
Chalcocite Cu2S Mon 5.5 5.8 2.5 3 Imperfectly sectile. 79.8% Cu
Chalcopyrite CuFeS2 Tet 4.1 4.3 3.5 4 Brittle, yellow. 31 - 34.5% Cu
Chalcotrichite Cu2O 0 0 2.5 3 Fibrous cuprite
Chalk 0 0 0 0 Fine grained calcite
Chalybite FeCO3 0 0 0 0 Siderite
Chert SiO2 2.65 0 7 0 Cryptocrystalline quartz
Chessylite Cu3(CO3)2(OH)2 0 0 0 0 Azurite
Chiastolite 0 0 0 0 Andalusite with dark cruciform inclusions
Chloanthite 0 0 0 0 Nickel skutterudite, 3.5 - 6.5% Co, 14.5 - 21.5% Ni, 71.5 - 73.5% As
Chlorargyrite AgCl Iso 5.556 0 1.5 2.5 AgCl, 75% Ag, member of chlorargyrite group
Chlorite (Mg,Al,Fe,Li,Mn,Ni)4-6 (Si,Al,B,Fe)4O10(OH,O)8 Mon 2.6 3.3 2 2.5 Differentiated by chemical analyses and optical properties into clinochlore, penninite and prochlorite
Chloritoid Fe2+Al2OSiO4(OH)2 Mon 3.4 3.8 6.5 0 Brittle micas of the chloritoid group
Chondrodite Mg5(SiO4)2F2 Mon 3.16 3.26 6 6.5 Similar species are clinohumite, humite, norbergite
Chromite Fe2+Cr2O4 Iso 4.5 4.8 5.5 0 Lustre submetallic, dark brown streak. 43 - 68% Cr2O3
Chrysoberyl BeAl2O4 Orth 3.75 0 8.5 0 Crystals tabular. 19.8% BeO
Chrysocolla (Cu,Al)2H2Si2O5(OH)4·nH2O Orth 1.93 2.4 2.5 3.5 Bluish green. 36% Cu
Chrysolite 0 0 0 0 Olivine
Chrysoprase 0 0 0 0 An apple-green variety of chalcedony
Chrysotile Mg3Si2O5(OH)4 0 0 0 0 Serpentine asbestos
Cinnabar HgS Trig 8.176 0 2 2.5 Red streak. 86% Hg
Cinnamon stone 0 0 0 0 Grossularite
Citrine SiO2 7 0 0 0 Pale yellow quartz
Clay 0 0 0 0 See kaolin, montmorillonite, illite
Cleavelandite NaAlSi3O8 Tric 2.6 2.65 6 6.5 White, platy albite
Cliachite 0 0 0 0 Very fine grained to colloidal Al hydroxides in bauxite
Clinochlore Mg6Si4O10(OH)8 Mon 2.6 3.02 2 2.5 Most common member of the chlorite group
Clinoclase Cu3(AsO4)(OH)3 Mon 4.38 0 2.5 3 Sec. mineral
Clinoenstatite MgSiO3 Mon 3.19 0 5 6 Monoclinic form of enstatite – clinopyroxene subgroup
Clinoferrosilite Fe2+SiO3 Mon 3.6 0 5 6 Clinopyroxene subgroup
Clinohumite Mg9(SiO4)4F2 Mon 3.1 3.2 6 0 Humite group
Clinozoisite Ca2Al3(Si2O7)(SiO4)O(OH) Mon 3.3 3.4 7 0 Crystals striated – epidote group
Cobaltite CoAsS Orth 6.33 0 5.5 0 In pyritohedrons. 29 - 35% Co, 43 - 45% As
Coffinite U[SiO4·(OH)4] Tet 7.2 0 0 0 Black U mineral of sed/ sandst. deps.
Cogwheel ore 0 0 0 0 Bournonite
Colemanite CaB3O4(OH)3·H2O Mon 2.423 0 4 4.5 Cl (010) perfect. 50.9% B2O3
Collophane 0 0 0 0 A variety of carbonate- rich apatite
Columbite (Mn,Fe,Mg)(Nb,Ta)2O6 with Nb>Ta Orth 5.2 6.7 6 0 Lustre submetallic. 31 - 79% Nb2O5, max 52% Ta2O5 (with Nb = Ta)
Common salt NaCl Iso 2.168 0 2.5 0 Halite
Copper Cu Iso 8.9 0 2.5 3 Malleable
Copper glance Cu2S Mon 5.5 5.8 2.5 3 Chalcocite
Copper nickel 0 0 0 0 Niccolite
Copper pyrites CuFeS2 Tet 4.1 4.3 3.5 4 Chalcopyrite
Cordierite Mg2Al4Si5O18 Orth 2.6 2.66 7 7.5 In m. to high grade metamorphics
Corundum Al2O3 Rho 3.98 4.14 9 0 Rhomb. parting 52.9% Al
Cotton-balls 0 0 0 0 Ulexite
Covellite CuS Hex 4.6 4.76 1.5 2 Blue. 66.4% Cu
Cristobalite SiO2 Tet 2.32 2.36 6 7 High temperature quartz, in volcanic rocks (>1470°C)
Crocidolite Na2(Fe,Mg)3(Fe3+)2Si8O22 (OH)2 Mon 3.2 3.3 5 5.5 Blue asbestos variety of riebeckite
Crocoite PbCrO4 Mon 5.97 6.02 2.5 3 Orange-red streak. 23% Cr2O3, 64% Pb
Cryolite Na3AlF6 Mon 2.96 2.98 2.5 0 White. 54.4% F
Cubanite CuFe2S3 Orth 4.03 4.18 3.5 0 23% Cu
Cumming- tonite []Mg7Si8O22(OH)2 Mon 3.1 3.6 5 6 An amphibole
Cuprite Cu2O Iso 6.14 0 3.5 4 Brownish red streak. 88.8% Cu
Cyanite Al2OSiO4 Tri 3.53 3.65 5.5 7 Kyanite
Cymophane BeAl2O4 Orth 3.75 0 8.5 0 Chrysoberyl
D 0 0 0 0
Danaite (Fe,Co)AsS Mon 5.9 6.2 5.5 6 Cobaltian arseno-pyrite, to 12% Co
Danburite CaB2(SiO4)2 Orth 2.97 3.02 7 0 In crystals. 28.4% B2O3
Datolite CaB(SiO4)(OH) Mon 2.96 3 5 5.5 Usually in crystals. 21.8% B2O3
Davidite Ce(Y,U)Fe2(Ti,Fe,Cr,V)18 (O,OH,F)38 0 0 0 0 Th brannerite. To 9% U3O8
Demantoid Ca3Fe2(SiO4)3 Iso 3.8 3.9 6.5 7 Green gem andradite
Diallage Ca,Mg,Si,O 0 0 0 0 An old name refering to amphibole, pyroxene and/or hypersthene
Diamond C Iso 3.5 3.53 10 0 Adamantine lustre, fluorescent
Diaspore AlO(OH) Orth 3.2 3.5 6.5 7 85% Al2O3
Diatomite 0.4 0.6 2 2.5 Siliceous tests of diatoms ()
Dichroite (Mg,Fe)2Al4Si5O18 Orth 2.6 2.66 7 7.5 Cordierite
Dickite Al2Si2O5(OH)4 Mon 2.6 0 2 2.5 Kaolin group clay mineral
Digenite Cu9S5 Iso 5.546 0 2.5 3 Chalcocite-digenite group. 75 - 79% Cu
Diopside CaMgSi2O6 Mon 3.22 3.38 5.5 6.5 Pyroxene group - clinopyroxene subgroup
Dioptase CuSiO3·H2O Trig 3.28 3.35 5 0 Emerald green
Disthene Al2OSiO4 Trig 3.53 3.65 5.5 7 Kyanite
Dolomite CaMg(CO3)2 Trig 2.84 2.86 3.5 4 Cl (1011). 30.4% CaO, 21.7% MgO, 54.3% CaCO3
Dry-bone ore ZnCO3 Trig 4.42 4.44 4 4.5 Smithsonite
Dumortierite (Al,[])Al6BSi3O16(O,OH)2 Orth 3.26 3.36 7 0 Radiating fibrous
E 0 0 0 0
Edenite Ca2NaMg5(AlSi7O22) (OH)2 Mon 3 0 5 6 Pale iron-free hornblende from the amphibole group
Electrum Au,Ag Iso 13.5 17.5 3 0 Natural Au-Ag alloy with >20% Ag
Eleolite (Na,K)AlSiO4 Hex 2.55 2.66 5.5 6 Nepheline
Embolite Ag(Cl,Br) with Cl = Br Iso 5.6 0 1.5 2 Intermediate between cerargyrite and bromyrite
Emerald Be3Al2Si6O18 Hex 2.63 2.92 7.5 8 Green gem beryl
Emery 0 0 0 0 Corundum with spinel magnetite and hematite
Enargite Cu3AsS4 Orth 4.43 4.45 3 0 Cl (110). 48.3% Cu, 19.1% As
Endlichite 0 0 0 0 Arsenical vanadinite, As replacing V
Enstatite MgSiO3 Orth 3.2 3.9 5 6 A pyroxene
Epidote Ca2Fe3+Al2(Si2O7)(SiO4) O(OH) Mon 3.38 3.49 6 0 The Al2Fe3+ analogue of clinozoisite Cl (001)
Epsomite MgSO4·7H2O Orth 1.675 1.679 2 2.5 Bitter taste. 16.3% MgO
Epsom salt 0 0 0 0 Epsomite
Erythrite Co3(AsO4)2·8H2O Mon 3.06 0 1.5 2.5 Pink cobalt bloom. 37% Co
Essonite 0 0 0 0 Grossularite
Euclase BeAlSiO4(OH) Mon 2.99 3.1 7.5 0 Cl (010). 17% BeO
Eucryptite LiAlSiO4 Trig 2.657 2.666 6.5 0 Phenakite group. After spodumene, fluorescent
Euxenite (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 Orth 5.3 5.9 5.5 6.5 22 - 30% REO, max. 8% U3O8, 30 - 50% (Nb2O5+Ta2O5)
F 0 0 0 0
Fahlore (Cu,Fe,Ag,Zn)12Sb4S13 Iso 4.97 0 3.5 4 Tetrahedrite
Fayalite Fe2SiO4 Orth 4.14 0 6.5 0 Iron olivine
Feather ore Pb4FeSb6S14 Orth 5.63 0 2.5 0 Jamesonite
Feldspar group M.Al(Al,Si)3O8, M = K,Na,Ca,Ba,Rb,Sr,Fe 0 0 0 0 See plagioclase, celsian, potassium feldspar
Feldspathoid group 0 0 0 0 See cancrinite, lazurite, leucite, nepheline, petalite, sodalite
Ferberite Fe2+WO4 Orth 7.58 0 4 4.5 Wolframite series, 76.3% WO3
Fergusonite (RE,Fe)(Nb,Ta,Ti) O4 Tet 4.2 5.8 6.5 7.5 Max 46% REO, 10% U3O8, 54% Nb2O5
Ferrimolybdite (Fe3+)2(Mo6+O4)3·7H2O Orth 2.99 0 1 2 39% Mo commonly formed from the alteration of molybdenite
Ferrosilite (Fe2+)2(SiO3)2 Orth 3.6 4 5 6 A pyroxene enstatite- ferrosilite series
Fibrolite Al2OSiO4 Orth 0 0 6.5 7.5 Fibrous sillimanite
Flint SiO2 2.65 0 7 0 Cryptocrystalline quartz
Florencite CeAl3(PO4)2(OH)6 Hex 3.6 0 5 0 The original name given to the cerium- dominant member of what is now a group of related phosphates and arsenates
Flos ferri 0 0 0 0 A stalactitic variety of aragonite
Fluorite CaF2 Iso 3.175 3.56 4 0 Cl octahedral, fluorescent, 48.9% F
Formanite YTaO4 0 0 5.5 6.5 Fergusonite with Y
Forsterite Mg2SiO4 Orth 3.27 0 7 0 Magnesian olivine
Fowlerite (Mn,Zn)SiO3 0 0 0 0 Zinc-bearing rhodonite
Franklinite Zn(Fe3+)2O4 Iso 5.07 5.22 5.5 6 Spinel group, dark brown streak, 5 - 19% Zn
Freibergite Ag6Cu4Fe2Sb4S13 5.41 0 3.5 4 Argentiferous tetrahedrite
Fuchsite K(Al,Cr)2(AlSi3O10)(OH,F)2 Mon 2.76 2.88 2 2.5 Cr rich muscovite
G 0 0 0 0
Gadolinite Be2Fe2+Y2Si2O10 Mon 4 4.5 6.5 7 Nom. 48% REO, 10% BeO
Gahnite ZnAl2O4 Iso 4.62 0 7.5 8 Zn spinel, green octahedrons
Galaxite Mn2+Al2O4 Iso 4.03 0 7.5 8 Mn spinel
Galena PbS Iso 7.4 7.6 2.5 0 Cl cubic. 86.6% Pb
Garnet group A3B2(SiO4)3 A = Ca,Mg,Fe2+,Mn2+; B = Al,Fe3+,Mn3+,Cr Iso 3.5 4.3 6.5 7.5 See almandite, andradite, grossularite, pyrope, spessartite, uvarovite
Garnierite (Ni,Mg)3Si2O5(OH)4 Amor 2.2 2.8 2 3 Generic name for a green nickel ore. 25 - 30% Ni
Gaylussite Na2Ca(CO3)2·5H2O Mon 1.991 0 2.5 0 Easily fusible. 20% Na2O
Gedrite []Mg5Al2(Si6Al2)O22(OH)2 Orth 0 0 5.5 6 Al-rich anthophyllite
Geocronite Pb14(Sb,As)6S23 Orth 6.46 0 2.5 3 69% Pb, 8% Sb, 5% As
Gersdorffite NiAsS Iso 5.9 0 5.5 0 35% Ni, 45% As
Geyserite 0 0 0 0 Opal of hot spring deposits
Gibbsite Al(OH)3 Mon 2.38 2.42 2.5 3 65.4% Al2O3
Glauberite Na2Ca(SO4)2 Mon 2.75 2.85 2.5 3 22% Na2O
Glaucodot CO0.5Fe0.5AsS 0 0 0 0 Danaite – a Co-bearing variety of arsenopyrite
Glauconite (K,Na)(Al,Fe3+,Mg)2 (Al,Si)4O10(OH)2 Mon 2.4 2.95 2 0 Green sand mica of marine sediments
Glaucophane []Na2(Mg3Al2)Si8O22(OH)2 Mon 3 3.2 5 6 Na amphibole
Gmelinite (Na,Ca)(Si8Al4)O24·11H2O Hex 2.04 2.17 4.5 0 Zeolite group, var. of chabazite
Goethite FeO(OH) Orth 4.27 4.29 5 5.5 Diaspore group, Cl (010), 62% Fe
Gold Au Iso 15 19.3 2.5 3 Yellow, soft
Goslarite ZnSO4·7H2O Orth 1.978 0 2 2.5 Sol. in water. 22% Zn
Graphite C Hex 2.09 2.23 1 2 Black, platy
Grey copper (Cu,Fe,Ag,Zn)12Sb4S13 Iso 4.97 0 3.5 4 Tetrahedrite
Greenockite CdS Hex 4.8 4.9 3 3.5 Yellow-orange. 77.8% Cd
Grossular Ca3Al2(SiO4)3 Iso 3.594 0 6.5 7 A garnet
Gummite UO3·nH2O 3.9 6.4 2.5 5 Field name for hydrous U oxides. 60 - 80% U3O8
Gypsum CaSO4·2H2O Mon 2.312 2.322 2 0 Cl (010), (100), (011). 32.5% CaO
H 0 0 0 0
Halite NaCl Iso 2.168 0 2.5 0 Natural salt. 53% Na2O equiv.
Halloysite Al2Si2O5(OH)4 Mon 2 2.6 1 2 Clay mineral
Harmotome Ba2(Si12Al4)O32·12H2O Mon 2.41 2.47 4 5 Zeolite group, harmotome-phillipsite- Ca series
Hastingsite Na,Ca2[(Fe2+)4Fe3+](Si6Al2) O22(OH)2 Mon 3.2 0 5 6 Amphibole group, calcic clino-amphibole subgroup
Hausmannite Mn3O4 Tet 4.83 4.85 5.5 0 72% Mn
Haüyne Na3Ca(Si3Al3)O12(SO4) Iso 2.44 2.5 5.5 6 Sodalite group
Heavy spar BaSO4 Orth 4.5 0 3 3.5 Barite
Heazlewoodite Ni3S2 Trig 5.82 0 4 0 Brassy yellow, to 73% Ni
Hectorite Na0.3(Mg,Li)3Si4O10(F,OH)2 ·nH2O Mon 2.5 0 1 1.5 Li montmorillonite
Hedenbergite CaFe2+(Si2O6) Mon 3.56 0 5.5 6.5 End member of diopside series
Heliotrope 0 0 0 0 Synonym of bloodstone, green and red chalcedony
Helvite Mn4Be3(SiO4)3S Iso 3.2 3.44 6 6.5 Helvite group, danalite- helvite series, in pegmatites
Hematite Fe2O3 Trig 5.26 0 5 6 Brownish red streak. 70% Fe
Hemimorphite Zn4(Si2O7)(OH)2·H2O Orth 3.475 0 4.5 5 Cl (110). 54% Zn
Hercynite Fe2+Al2O4 Iso 4.39 0 7.5 0 Iron spinel
Hessite Ag2Te Mon 8.24 8.45 1 1.5 Grey
Heulandite Na,Ca4(Si27Al9)O72·24H2O Mon 2.1 2.2 3 3.5 Heulandite now refers to a group of related minerals
Hiddenite LiAlSi2O6 Mon 3.1 3.2 6.5 7 Green spodumene
Holmquistite []Li2Mg3Al2Si8O22(OH)2 Orth 0 0 5.5 0 Lithium-bearing glaucophane, amphibole group
Hornblende (Ca,Na)2(Mg,Fe)4Al(Si7Al) O22(OH,F) Mon 3 3.4 6 0 Common amphibole
Horn silver AgCl Iso 5.556 0 1.5 2.5 A synonym for chlorargyrite
Hübnerite Mn2+WO4 Mon 4 0 4.5 0 Ferberite-hübnerite series. 76.6% WO3
Humite Mg7(SiO4)3(F,OH)2 Orth 3.1 3.2 6 0 Humite group
Hyacinth 0 0 0 0 Brownish to red-orange zircon
Hyalite 0 0 0 0 Globular, colourless opal
Hyalophane (K,Ba)(Al,Si)4O8 Mon 2.8 0 6 0 Ba-rich orthoclase
Hydromica K,Al,Mg,Si,H2O 0 0 0 0 Variety of Illite very low in K and high in water
Hydrozincite Zn5(CO3)2(OH)6 Mon 3.5 4 2 2.5 Alteration product generally of sphalerite, also of hemimorphite, and smithsonite. 59% Zn
Hypersthene (Mg,Fe)SiO3 Orth 3.4 3.5 5 6 Regarded as a synonym of enstatite or ferrosilite
I 0 0 0 0
Ice H2O 0.917 0 1.5 0
Iceland spar 0 0 0 0 Optically clear calcite
Iddingsite MgOFe2O33SiO2·4(H2O) Orth 3.5 3.8 1 1.5 After olivine
Idocrase Ca,Na)19(Al,Mg,Fe)13(SiO4)10 (Si2O7)4 (OH,F,O)10 Tet 3.35 3.45 6.5 0 Prismatic crystals
Illite (K,H3O)Al2(Si3Al) O10(H2O,OH)2 0 0 0 0 Mica-like clay mineral, about 38% Al2O3
Ilmenite FeTiO3 Rho 4.7 0 5.5 6 Slightly magnetic. 52.6% TiO2
Ilmenorutile (Ti,Nb,Fe)O2 5.1 0 6 6.5 Black, end member of struverite series
Ilvaite CaFe3+(Fe2+)2O(Si2O7)(OH) Orth 4 0 5.5 6 Black or brown
Indicolite 0 0 0 0 Dark blue tourmaline
Iodobromite Ag(Cl,Br,I) Iso 0 0 1 1.5 To about 15% I, 60% Ag
Iodyrite AgI Hex 0 0 1 1.5 Sectile. 45% Ag
Iolite 0 0 0 0 Cordierite (gem var.)
Iridium Ir Iso 5.7 0 6 7 Platinoid metal
Iridosmine Ir,Os Rho 5.7 0 6 7 Platinoid. Max. 77% Ir, max. 80% Os
Iron pyrites 0 0 0 0 Pyrite
J 0 0 0 0
Jacinth 0 0 0 0 Hyacinth
Jacobsite Mn2+(Fe3+)2O4 Iso 4.75 0 5.5 6.5 A black magnetic spinel
Jade 0 0 0 0 See nephrite and jadeite
Jadeite NaAlSi2O6 Mon 3.3 3.5 6.5 7 Green pyroxene jade
Jamesonite Pb4FeSb6S14 Mon 5.5 6 2 3 50.8% Pb, 29.5% Sb
Jargon 0 0 0 0 Clear, yellow or smoky zircon
Jarosite K(Fe3+)3(SO4)2(OH)6 Rho 2.91 3.26 3 0 6 - 9% K2O
Jasper 0 0 0 0 Red cryptocrystalline quartz
Johannsenite CaMn2+Si2O6 Mon 3.4 3.6 5 6 Brownish-greenish grey
K 0 0 0 0
Kainite MgSO4·KCl·3H2O Mon 2.1 0 3 0 19% K2O, 16% MgO
Kalinite KAl(SO4)2·11H2O 0 0 0 0 Potash alum
Kaliophilite K(AlSiO4) Hex 2.61 0 6 0 Dimorph. with kalsilite. 30% K2O, 32% Al2O3
Kalsilite KAlSiO4 0 0 0 0 End member of nepheline series
Kaolin group LiAlSi2O6 0 0 0 0 Family of clay minerals, see anauxite, dickite, kaolinite, nacrite, with 39.5% Al2O3
Kaolinite Al2(Si2O5)(OH)4 Mon 2.6 2.65 2 2.5 Earthy
Kernite Na2B4O6(OH)2·3(H2O) Mon 1.95 0 3 0 22.7% Na2O, 51% B2O3
Krennerite (Au,Ag)Te2 Orth 8.62 0 2 3 Basal cleavage
Kunzite 0 0 0 0 Pink spodumene
Kyanite Al2SiO5 Tric 1.95 0 5 7 Blue, Cl (100) perfect, bladed xals. Marked hardness anisotropy
L 0 0 0 0
Labradorite (Ca,Na)(Si,Al)4O8 Tric 2.71 0 6 0 A plagioclase feldspar
Langbeinite K2Mg2(SO4)3 Iso 2.83 0 2.5 3.5 22.7% K2O, or 42% K2SO4
Lapis lazuli 0 0 0 0 Impure lazurite
Larsenite PbZnSiO4 Orth 5.9 0 3 0 Rare olivine
Laumontite Ca(Si4Al2)O12·4H2O Mon 2.28 0 4 0 A zeolite
Lawsonite CaAl2(Si2O7)(OH)2·H2O Orth 3.09 0 8 0 In gneisses and schists
Lazulite MgAl2(PO4)2(OH)2 Mon 3 3.1 5 5.5 Blue gemstone
Lazurite Na3CaAl3Si3O12S Iso 2.4 2.45 5 5.5 A feldspathoid
Lechatelierite SiO2 Amor 2.2 0 6 7 Fused silica
Lepidocrocite Fe3+O(OH) Orth 4.09 0 5 0 With goethite. 62% Fe
Lepidolite K(Li,Al)3(Si,Al)4O10(F,OH)2 Mon 2.8 3 2.5 4 Lithium mica with about 5% Li2O
Leucite K(AlSi2O6) Iso? 2.45 2.5 5.5 6 A feldspathoid
Leucoxene FeTiO3 to TiO2 3.6 4.3 0 0 Whitish, opaque ilmenite alteration products
Libethenite Cu2(PO4)(OH) Orth 4 0 4 0 53% Cu, 29% P2O5
Liddicoatite Ca(Li,Al)3Al6(BO3)3Si6O18 (OH)4 Hex 3 3.1 7 7.5 Uncommon form of tourmaline
Limonite Fe3+O(OH) Amor 3.6 4 5 5.5 Field name for brown amorphous hydrous iron oxides, yellowish brown streak, about 60% Fe
Linarite PbCu(SO4)(OH)2 Mon 5.3 0 2.5 0 Deep blue. 15% Cu, 51% Pb
Linnaeite Co3S4 Iso 4.8 0 4.5 5.5 58% Co, to 7% Ni
Lithia mica 0 0 0 0 Lepidolite
Lithiophilite Li(Mn2+)PO4 Orth 3.5 0 5 0 End member of triphy- lite series. 9.5% Li2O, 45% P2O5
Loellingite FeAs2 Orth 7.4 7.5 5 5.5 72.8% As
M 0 0 0 0
Magnesio- chromite MgCr2O4 Iso 4.2 0 5.5 0 End member of chromite series, with 21% MgO, 79% Cr2O3
Magnesio- ferrite MgFe3+2O4 Iso 4.5 0 5.5 6.5 A spinel. 20% MgO, 56% Fe for MgFe2O4
Magnesite MgCO3 Rho 3 3.2 3.5 5 Commonly massive, sticks to thetongue, 47.6% MgO
Magnetic pyrites 0 0 0 0 Pyrrhotite
Magnetite Fe3+Fe2+2O4 Iso 5.18 0 6 0 Iron spinel, strongly magnetic, black streak. 72.4% Fe for Fe3O4
Malachite Cu2CO3(OH)2 Mon 3.9 4.03 3.5 4 Green. 57.3% Cu
Manganite Mn3+O(OH) Orth 4.3 0 4 0 Prismatic crystals, dark brown streak. 62% Mn
Manganosite MnO Iso 5 5.4 5.5 0 77% Mn
Mangano- tantalite Mn2+Ta2O6 Orth 7.3 0 4.5 0 Tantalite with Mn: Fe :: 3:1, 10% Mn, 84% (Nb2O5+Ta2O5)
Marcasite FeS2 Orth 4.89 0 6 6.5 White iron pyrites. 46.5% Fe
Margarite CaAl4Si2O10(OH)2 Mon 3 3.1 3.5 5 A brittle mica
Marialite Na4Al3Si9O24Cl Tet 2.7 0 5.5 6 End member of scapolite series
Marmatite (ZnFe)S 0 0 0 0 Iron rich sphalerite, to 20% Fe
Martite 0 0 0 0 Haematite octahedrons after magnetite
Meerschaum 0 0 0 0 Sepiolite
Meionite Ca4Al6Si6O24(CO3) Tet 2.7 0 5.5 6 End member of scapolite series
Melaconite CuO 0 0 0 0 Tenorite
Melanite Ca3Fe3+2(SiO )4Ti3 0 0 0 0 Black andradite
Melanterite FeSO4·7H2O Mon 1.9 0 2 0 Green-blue
Melilite (Na,Ca)2(Mg,Al)(Si,Al)2O7 Tet 2.9 3.1 5 0
Menaccanite 0 0 0 0 Ilmenite
Meneghinite Pb13CuSb7S24 Orth 6.36 0 2.5 0 Jamesonite family
Mercury Hg 13.6 0 0 0 Fluid, quicksilver
Miargyrite AgSbS2 Mon 5.2 5.3 2.5 0 Cherry red streak. 36% Ag, 41% Sb
Mica group 0 0 0 0 See biotite, brittle mica, lepidolite, muscovite, phlogopite
Microcline K(AlSi3O8) Tric 2.54 2.57 6 3.5 Triclinic K feldspar
Microlite (Na,Ca)2Ta2O6(O,OH,F) Iso 6.33 0 5.5 0 End member of pyrochlore series,75 - 80% (Nb2O5+Ta2O5)
Microperthite 0 0 0 0 Microcline and albite micro layers
Millerite NiS Rho 5.3 5.7 3 0 Capillary crystals 64.7% Ni
Mimetite Pb5Cl(AsO4)3 Hex 7 7.2 3.5 0 Like pyromorphite. 69% Pb, 15% As
Minium Pb3O4 8.9 9.2 2.5 0 90% Pb
Mispickel 0 0 0 0 Arsenopyrite
Molybdenite MoS2 Hex 4.62 4.73 1 1.5 Platy. 60% Mo
Molybdite MoO3 0 0 0 0 Ferrimolybdite
Monazite (Ce,La,Nd,Th)PO4 Mon 3.2 0 5 5.5 Max 30% ThO2, max 65% REO
Monticellite CaMgSiO4 Orth 2.5 0 5 0 Rare olivine
Montmorill- onite (Na,Ca)0.3(Al,Mg)2Si4O10 (OH)2·n(H2O) Mon 0 0 1 1.5 Clay mineral
Montmorillonite group Family of clay minerals with 39.5% Al2O3, see beidellite,hectorite, montmorillonite, nontronite and saponite 0 0 0 0
Moonstone 0 0 0 0 Opalescent albite or orthoclase
Morganite 0 0 0 0 Rose beryl
Mullite Al4+2xSi2-2xO10-x(x~0.4) Orth 3.23 0 6 7 Formed by heating andalusitekyanite or sillimanite
Muscovite KAl2(Si3Al)O10(OH)2 Mon 2.76 3.1 2 2.5 Common clear mica
N 0 0 0 0
Nacrite Al2(Si2O5)(OH)4 Mon 2.6 0 2 2.5 Kaolin group clay mineral
Nagyagite [Pb(Pb,Sb)S2][(Au,Te)] Mon 7.4 0 1 1.5 Rare
Natroalunite 0 0 0 0 Alunite with Na>K
Natrojarosite NaFe3+3(SO4)2(OH)6 Hex 3.1 3.3 3 3.5 Only in tiny crystals
Natrolite Na2(Al2Si3O10)·2H2O Mon 2.25 0 5 5.5 A zeolite
Nepheline Ca2(Mg,Fe)5Si8O22(OH)2 Hex 2.55 2.65 5.5 6 A feldspathoid. 22% Na2O, 36% Al2O3
Nephrite 0 0 0 0 Jade-like var. of tremolite
Niccolite NiAs Hex 7.78 0 5 5.5 Copper-red. 43.9% Ni
Nickel bloom 0 0 0 0 Annabergite
Nickel iron Ni,Fe Iso 7.8 8.2 5 0 In meteorites, 5 - 15% Ni
Nickel skutterudite NiAs2-3 Iso 6.1 6.9 5.5 6 2 - 6% Co, 12 - 20% Ni, 73 - 78% As
Nitre KNO3 Orth 2.09 2.14 2 0 Saltpetre
Nontronite Na0.3(Fe3+)2(SiAl)4O10(OH)2 ·nH2O Mon 2.5 0 1 1.5 Montmorillonite group clay mineral
Norbergite Mg3SiO4F2 Orth 3.1 3.2 6 0 Chondrodite group
Nosean (Noselite) Na8Al6Si6O24·(SO4)·H2O Iso 2.25 2.4 6 0 A feldspathoid
O 0 0 0 0
Octahedrite TiO2 0 0 0 0 Anatase
Oligoclase (Na,Ca)(Si,Al)4O8 Tri 2.65 0 6 0 A plagioclase feldspar
Olivine group (Mg,Fe)2SiO4 0 0 0 0 (Forsterite-Fayalite series), also rarer members larsenite, monticellite, tephroite
Omphacite (Ca,Na)(MgFe2+,Fe3+,Al)Si2O6 Mon 3.3 3.4 5 6 Light to dark green
Onyx 0 0 0 0 Layered chalcedony
Opal SiO2·nH2O Amor 1.9 2.2 5 6 Conchoidal fracture
Orpiment As2S3 Mon 3.49 0 1.5 2 Yellow. 61% As
Orthite (Ce,Ca,Y)2(Al,Fe3+)3(SiO4)3OH 0 0 0 0 Allanite
Orthoclase K(AlSi3O8) Mon 2.57 0 6 0 Hex. iridosmine
Osmiridium (Ir,Os) 0 0 0 0 Common K feldspar
Otavite CdCO3 Hex 5 0 3.5 4 In cadmium deposits
Ottrelite (Mn2+)Al2O(SiO4)(OH)2 Mon 3.5 0 6 7 Mn chloritoid
P 0 0 0 0
Palladium Pd Iso 11.9 0 4.5 5 With platinum
Paradamite Zn2(AsO4)(OH) Tric 4.5 0 3.5 0 Pale to dark yellow
Paragonite NaAl2(AlSi3O10)(OH)2 Mon 2.85 0 2 0 Na muscovite
Pargasite NaCa2(Mg4Al) (Si6Al2) O22(OH)2 Mon 3 3.5 5.5 0 Greenish Na hornblende
Patronite VS4 0 0 0 0 Vanadium ore (Peru)
Peacock ore Cu5FeS4 0 0 0 0 Bornite
Pearceite Cu(Ag,Cu)6Ag9As2S11 Mon 6.15 0 3 0 Var. of polybasite
Pectolite NaCa2Si3O8(OH) Tric 2.7 2.8 5 0 Crystals acicular
Penninite 0 0 0 0 Chlorite variety
Pentlandite (Fe,Ni)9S8 Iso 4.6 5.3 3.5 4 With pyrrhotite. 34 - 35% Ni
Periclase MgO Iso 3.6 3.9 5.5 6 Contact met. mineral
Peridot 0 0 0 0 Gem olivine
Perovskite CaTiO3 Iso 4.03 0 5.5 0 58% TiO2, variable REO
Perthite 0 0 0 0 Microcline and albite intergrowth
Petalite Li(AlSi4O10) Mon 2.4 0 6 6.5 A feldspathoid. 5% Li2O
Petzite Ag3AuTe2 Iso? 8.7 9 2.5 3
Pezzottaite Cs(Be2Li)Al2Si6O18 Hex 2.9 3 8 0 Pink to red
Phenacite Be2SiO4 Rho 2.97 3 7.5 8 In pegmatites. 45.6% BeO
Phillipsite (Na6,K6,Ca3)(Si10Al6) O32·12H2O Mon 2.2 0 4.5 5 Var. of stilbite
Phlogopite K(Mg)3AlSi3O10(OH)2 Mon 2.86 0 2.5 3 Brown mica
Phosgenite Pb2Cl2CO3 Tet 6 6.3 3 0 Easily fusible. 75% Pb
Phosphurany- lite KCa(H3O)3(UO2)7(PO4)4 O4·8(H2O) Tet 0 0 2.5 0 Yellow secondary U mineral
Picotite 0 0 0 0 Cr spinel
Piedmontite (Ca,Pb,Ce)2(Mn,Fe)Al2(Si2O7) (SiO4)(O,OH)2 Mon 3.4 0 6.5 0 Reddish brown
Pigeonite (Ca,Mg,Fe)SiO3 Mon 3.2 3.4 5 6 Pyroxene in basic volcanics
Pinite K,Al,Si,O(?) 0 0 0 0 Muscovite after other minerals
Pitchblende UO2 0 0 0 0 Uraninite
Plagioclase NaAlSi3O8 (albite-Ab100 An0) to CaAl2Si2O8 (anorthite- Ab0An100) Tric 2.62 2.76 6 0 See albite, oligoclase, andesine, labradorite, bytownite, anorthite
Plagionite Pb5Sb8S17 Mon 5.56 0 2.5 0 Jamesonite series
Platinum Pt alloy Iso 14 19 4 4.5 Grains in placers
Pleonaste 0 0 0 0 Iron spinel
Plumbago 0 0 0 0 Graphite
Polianite MnO2 Tet 14 19 6 6.5 Crystalline pyrolusite
Pollucite Cs(Si2Al)O6·nH2O Iso 2.9 0 6.5 0 Colourless > 42% Cs2O
Polybasite Cu(AgCu)6Ag9Sb2S11 Mon 6 6.2 2 3 74% Ag, 10% Sb, to 12% Cu
Polycrase AB2(O,OH)6 A = Y,Ce,Ca,U,Th B = Ti,Nb,Ta,Fe Orth 4.7 5.9 5.5 6.5 14 - 30% REO, max 13% U3O8, max 26% (Nb2O5+Ta2O5)
Polyhalite K2Ca2Mg(SO4)4·2H2O Tric 2.78 0 2.5 3 Bitter taste. 15.6% K2O
Potash alum KAl(SO4)2·12H2O Iso 1.75 0 2 2.5 6 - 10% K2O
Potassium feldspar KAlSi3O8 0 0 0 0 See orthoclase, microcline
Potash mica 0 0 0 0 Muscovite
Powellite CaMoO4 Tet 4.23 0 3.5 4 Fluorescent. 48% Mo
Prase 0 0 0 0 Dull green jasper
Prehnite Ca2Al2(Si3O10)(OH)2 Orth 2.8 2.95 6 6.5 Tabular crystals
Prochlorite 0 0 0 0 Chlorite variety
Proustite Ag3AsS3 Rho 5.55 0 2 2.5 Light ruby silver, red streak. 65.4% Ag, 15.2% As
Psilomelane (Ba,H2O)2Mn5O10 0 0 0 0 Field name for massive, hard-manganese minerals. About 50% Mn
Purple copper ore 0 0 0 0 Bornite
Pyrargyrite Ag3SbS3 Rho 5.85 0 2.5 0 Dark ruby silver, red streak. 22.3% Sb, 59.9% Ag
Pyrite FeS2 Iso 5.02 0 6 6.5 Crystals striated. 46.5% Fe
Pyrochlore Ca2Nb2O7 Iso 4.2 4.5 5 0 Infusible. 3 - 6% REO, 56 - 73% Nb2O5
Pyrolusite MnO2 Tet 4.75 0 1 2 Sooty. 63.2% Mn
Pyromorphite Pb5(PO4)3Cl Hex 6.5 7.1 3.5 4 Adamantine lustre. 49 - 76% Pb, max 8% As
Pyrope Mg3Al2(SiO4)3 Iso 3.51 0 7 0 Dark red garnet
Pyrophyllite Al2Si4O10(OH)2 Mon 2.8 2.9 1 2 Resembles talc
Pyroxene group 0 0 0 0 See aegerine, augite, diopside, enstatite, jadeite, spodumene
Pyrrhotite (1) Fe7S8 Mon 4.58 0 4 0 Magnetic, 59.5% Fe
Pyrrhotite (2) Fe11S12 Hex 4.65 0 4 0 Nonmagnetic, 62% Fe
Q 0 0 0 0
Quartz SiO2 Rho 2.65 0 7 0 46.7% Si
R 0 0 0 0
Rammelsbergite NiAs2 Orth 7.1 0 5.5 6 28% Ni
Rasorite 0 0 0 0 Kernite
Realgar AsS Mon 3.48 0 1.5 2 Red. 70% As
Red copper ore Cu2O 0 0 0 0 Cuprite
Red ochre Fe2O3 0 0 0 0 Haematite
Rhodochrosite MnCO3 Rho 3.45 3.6 3.5 4.5 Pink. 49% Mn
Rhodolite (Mg)3Al2(SiO4)3 Iso 3.84 0 7 0 Pale red or purple garnet
Rhodonite (Mn2+)SiO3 Tric 3.58 3.7 5.5 6 Pink. 42% Mn
Riebeckite []Na2Fe2+3Fe3+2(Si8O22) (O2H) Mon 3.44 0 4 0 Amphibole, end member of glaucophane series
Rock crystal 0 0 0 0 Euhedral clear quartz
Rock salt 0 0 0 0 Halite
Roscoelite K(V,Al)3Si3O10(OH)2 Mon 2.97 0 2.5 0 Vanadium mica
Rubellite 0 0 0 0 Red or pink tourmaline
Ruby Al2O3 0 0 0 0 Red gem corundum
Ruby copper Cu2O 0 0 0 0 Cuprite
Ruby silver 0 0 0 0 Pyrargyrite or proustite
Rutile TiO2 Tet 4.18 4.25 6 6.5 Adamantine lustre
S 0 0 0 0
Saleeite Mg(UO2)2(PO4)2·10H2O 0 0 0 0 Platy sec. U mineral, autunite series, fluorescent
Samarskite (Y,Ce,U,Fe,Nb)(Nb,Ta,Ti)O4 Orth 4.1 6.2 5 6 10 - 22% REO, 28 - 46% Nb2O5, 2 - 27% Ta2O5, 0 - 12% U3O8
Sanidine (K,Na)(Si,Al)4O8 0 0 0 0 High temperature orthoclase
Saponite (Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10 (OH)2·4H2O Mon 2.5 0 1 1.5 Montmorillonite group clay mineral
Sapphire Al2O3 0 0 0 0 Blue gem corundum
Satin spar 0 0 0 0 Fibrous gypsum
Scapolite (Na,Ca)4(Si,Al)12O24 (Cl,CO3,So4) Tet 2.65 2.74 5 6 Metamorphic, fluorescent
Scheelite CaWO4 Tet 5.9 6.1 4.5 5 Fluorescent. 70 - 80% WO3
Schorlite 0 0 0 0 Common black tourmaline
Scolesite Ca(Al2Si3O10)·3H2O Mon 2.16 2.4 5 5.5 A zeolite
Scorodite Fe2+AsO4·2H2O Orth 3.1 3.3 3.5 4 Green to brown. About 32% As
Scorzalite (Fe)Al2(PO4)2(OH)2 Mon 3.35 0 5.5 6 End member of lazulite series
Selenite 0 0 0 0 Clear crystalline gypsum
Semseyite Pb9Sb8S21 Mon 5.8 0 2.5 0 Jamesonite series
Sepiolite Mg4(Si2O5)3(OH)2·6H2O Mon? 2 0 2 2.5 Meerschaum, light, sec. With serpentine
Sericite K,Al,Si,O 0 0 0 0 Fine-grained muscovite
Serpentine Mg3Si2O5(OH)4 Mon 2.2 0 2 5 43% MgO
Siderite FeCO3 Rho 3.83 3.88 3.5 4 48.2% Fe
Siegenite CoNi2S4 Iso 4.8 0 4.5 5.5 Linnaeite series.29% Co, 29% Ni
Sillimanite Al2SiO5 Orth 3.23 0 6 7 Cl (010) perfect. 63.2% Al2O3
Silver Ag Iso 10.5 0 2.5 3 White, malleable
Silver glance CoAs3-x 0 0 0 0 Argentite
Sklodowskite Mg(UO2)2(SiO3OH)2 ·6H2O Orth 3.54 0 0 0 64% U3O8
Skutterudite (Co,Ni,Fe)As3 Iso 6.1 6.9 5 0 11 - 21% Co, 73 - 79% As, 0 - 9% Ni
Smaltite 0 0 0 0 Skutterudite variety. 13 - 24% Co,63 - 71% As, 1 - 15% Ni
Smithsonite ZnCO3 Rho 4.35 4.4 5 0 52% Zn
Soapstone 0 0 0 0 Talc
Sodalite Na4Al3Si3O12Cl Iso 2.15 2.3 5.5 6 A feldspathoid
Soda nitre NaNO3 Rho 2.29 0 1 2 36.5% Na2O
Spathic iron FeCo3 0 0 0 0 Siderite
Specular iron 0 0 0 0 Foliated haematite
Sperrylite PtAs2 Iso 10.5 0 6 7 54% Pt
Spessartite Mn3Al2(SiO4)3 Iso 4.18 0 7 0 Brown to red garnet
Sphaero- cobaltite CoCO3 Hex 4.13 0 3.5 4 Pink to red
Sphalerite ZnS Iso 3.9 4.1 3.5 4 38 - 67% Zn, max 5% Cd
Sphene CaTiO(SiO4) Mon 3.4 3.55 5 5.5 Wedge-shaped xals. 40% TiO2. Titanite
Spinel group (Mg,Fe,Zn,Mn)Al2O4 Iso 3.6 4 8 0 In octahedrons
Spodumene LiAl(Si2O6) Mon 3.15 3.2 6.5 7 A pyroxene. 8% Li2O
Stannite Cu2FeSnS4 Tet 4.4 0 4 0 Easily fusible. 29 - 31% Cu, 27% Sn, 12 - 14% Fe
Staurolite (Fe2+)2Al9Si4O23(OH) Orth 3.65 3.75 7 7.5 In cruciform twins. 56% Al2O3
Steatite 0 0 0 0 Talc
Stephanite Ag5SbS4 Orth 6.2 6.3 2 2.5 68.5% Ag, 15.2% Sb
Sternbergite AgFe2S3 Orth 4.1 4.2 1 1.5 34% Ag, 35% Fe
Stibnite Sb2S3 Orth 4.52 4.62 2 0 71.7% Sb
Stilbite (NaCa)3(SiAl)18O36·12H2O Mon 2.1 2.2 3.5 4 A zeolite
Stillwellite (Ce,La,Ca)BSiO5 Rho 4.57 0 0 0 58% REO, 11% B2O3
Stishovite SiO2 Tet 4.3 0 7.5 8 Found only at meteorite sites
Stolzite PbWO4 Tet 8.3 8.4 2.5 3 45% Pb, 50% WO3
Stromeyerite (Cu,Ag)S Orth 6.2 6.3 2.5 3 53% Ag, 31% Cu
Strontianite SrCO3 Orth 3.7 0 3.5 4 Efferv. in HCl. 90% SrO
Struverite (Ti,Ta,Nb,Fe)O2 0 0 0 0 Ta rich ilmenorutile
Sulfur S Orth 2.05 2.09 1.5 2.5 Burns with blue flame
Sunstone 0 0 0 0 Brilliant translucent oligoclase
Sylvanite (Au,Ag)Te4 Mon 8 8.2 1.5 2 Cl (010) perfect. 25% Au, 15% Ag
Sylvite KCl Iso 1.99 0 2 0 Cl cubic perfect. 63% K2O
T 0 0 0 0
Talc Mg3(Si4O10)(OH)2 Mon 2.7 2.8 1 0 Greasy feel
Tantalite (Mg,Mn2+)Ta2O6 Orth 6.2 8 6 6.5 52 - 86% Ta2O5, max 31% Nb2O5 (with Ta = Nb)
Tapiolite (Fe,Mn)(Ta,Nb)2O6 Tet 7.3 7.8 6 0 Dimorphous with tantalite
Tennantite Cu12As4S13 Iso 4.6 5.1 3 4.5 Max 11% Fe, 9% Zn, 14% Ag, 4% Pb, 13% Bi, 1% Co, 30 - 53% Cu
Tenorite CuO Tric 5.8 6.4 3 4 Black. 79.9% Cu
Tephroite (Mn2+)2SiO4 Orth 4 4.1 6 0 Light grey, rare olivine
Tetrahedrite Cu12Sb4S13 Iso 4.6 5.1 3 4.5 In tetrahedrons. Max. 45% Cu, 13% Fe, 8% Zn, 18% Ag, 17% Hg, 16% Pb, 4% Ni, 4% Co, 4% Bi
Thenardite Na2SO4 Orth 2.68 0 2.5 0 In saline lakes
Thomsonite NaCa2Al5Si5O20·6H2O Orth 2.3 0 5 0 A zeolite
Thorianite ThO2 Iso 9.7 0 6.5 0 To 17% U3O8
Thorite Th(SiO4) Tet 5.3 0 5 0 Usually hydrated
Thorogummite (Th,U)[(SiO4),(OH)4] Tet 4 4.5 4.5 0 A replacement of thorite
Thulite 0 0 0 0 Pink-red zoisite
Tiger’s-eye 0 0 0 0 Yellow brown quartz aftercrocidolite
Tin Sn Tet 7.3 0 2 0 Very rare
Tincalconite Na2B4O5(OH)4·3H2O Hex 1.88 0 1 0 A pseudomorph of borax
Tinstone SnO2 0 0 0 0 Cassiterite
Titanic iron ore 0 0 0 0 Ilmenite
Titanite CaTiSiO5 0 0 0 0 Sphene
Topaz Al2(SiO4)(F,OH)2 Orth 3.4 3.6 8 0 Cl (001) perfect
Torbernite Cu(UO2)2(PO4)2·12H2O Tet 3.22 0 2 2.5 Green. 61% U3O8, 13.5 - 15% P2O5 ,6 - 7% Cu
Tourmaline XY3Al6(BO3)3(Si6O18)(OH)4 X = Na,Ca Y = Al,Fe,Li,Mg Rho 3 3.25 7 7.5 Trigonal section
Tremolite []Ca2Mg5(Si8O22)(OH)2 Mon 3 3.3 5 6 Ca amphibole, short fibre asbestos
Tridymite SiO2 Orth 2.26 0 7 0 In volcanic rocks (870 - 1470°C)
Triphylite Li(Fe)PO4 Orth 3.42 3.56 4.5 5 9.5% Li2O, 45% P2O5
Troilite FeS 0 0 0 0 Pyrrhotite
Trona Na2CO3·NaHCO3·2H2O Mon 2.13 0 3 0 Alkaline taste. 41% Na2O
Troostite 0 0 0 0 Manganiferous willemite
Tungstite WO3·H2O Orth? 0 0 2.5 0 Sec. mineral
Turgite ? 4.2 4.6 6.5 0 With goethite
Turquoise CuAl6(PO4)4(OH)8.4H2O Tric 2.6 2.8 6 0 Blue-green. 5.5 - 7.8% Cu, 28 - 35% P2O5
Tyuyamunite Ca(UO2)2(VO4)2·5-8H2O Orth 3.7 4.3 2 0 Ca analogue of carnotite. About 56% U3O8, 20% V2O5
U 0 0 0 0
Ulexite NaCaB5O6(OH)6·5H2O Tric 1.69 0 1 0 7.7% Na2O, 43% B2O3
Uralian emerald 0 0 0 0 Green gem andradite
Uralite Ca2(Mg,Fe)5Si8O22(OH)2 0 0 0 0 Hornblende after pyroxene
Uraninite UO2 Iso 9 9.7 5.5 0 Pitchy lustre, nom. U3O8
Uranophane Ca(UO2)2(SiO3OH)2·5H2O Orth 3.81 3.9 2 3 63% U3O8
Urano- sphaerite Bi(UO2)O2(OH) Orth 6.36 0 2 3 61% U3O8, 42% Bi2O3
Uvarovite Ca3Cr2(SiO4)3 Iso 3.45 0 7.5 0 Green garnet
Uvite CaMg3(Al5Mg) (BO3)3(SiAl)6O18(OH)3F Hex 3 3.2 7.5 0 A rare form of tourmaline
V 0 0 0 0
Vanadinite Pb5(VO4)3Cl Hex 6.7 7.1 3 0 19.4% V2O5, 68 - 73% Pb
Variscite Al(PO4)·2H2O Orth 2.4 2.6 3.5 4.5 Green, massive. 43 - 45% P2O5
Verde antique 0 0 0 0 Variegated serpentine and whitemarble
Vermiculite Mg0.7(Mg,Fe,Al)6(Si,Al)8O20 (OH)4·8H2O Mon 2.4 0 1.5 0 Altered biotite
Vesuvianite (Ca,Na)19(Al,Mg,Fe)13(SiO4)10 (Si2O7)4(OH,F,O)10 0 0 0 0 Idocrase
Violarite Ni2Fe S4 Iso 4.8 0 4.5 5.5 34 - 43% Ni, 15 - 18% Fe
Vivianite (Fe2+)3(PO4)2·8H2O Mon 2.58 2.68 1.5 2 Cl (010) perfect. 28% P2O5
W 0 0 0 0
Wad Hyd. Mn oxides 0 0 0 0 25 - 48% Mn
Wavellite Al3(OH)3(PO4)2·5H2O Orth 2.33 0 3.5 4 35% P2O5, 38% Al2O3
Wernerite (Na,Ca)4(Si,Al)12O24 (Cl,CO3,SO4) 0 0 0 0 Scapolite
White iron pyrites 0 0 0 0 Marcasite
White mica 0 0 0 0 Muscovite
Willemite Zn2SiO4 Rho 3.9 4.2 5.5 0 Fluorescent, 58.5% Zn
Witherite BaCO3 Orth 4.3 0 3.5 0 Efferv. in HCl. 77.7% BaO
Wolframite (Fe,Mn,Mg)WO4 Mon 7 7.5 5 5.5 About 75% WO3
Wollastonite Ca(SiO3) Tric 2.8 2.9 5 5.5 Cl (001), (100)
Wood tin SnO2 0 0 0 0 Cassiterite
Wulfenite PbMoO4 Tet 6.5 7.5 3 0 Orange-red. 56% Pb, 26.6% Mo
Wurtzite ZnS Hex 4 0 4 0 Max. 67% Zn, 8% Fe, 3.6% Cd
X 0 0 0 0
Xenotime YPO4 Tet 4.4 5.1 4 5 61.4% REO, 38.6% P2O5
Y 0 0 0 0
Yellow copper ore 0 0 0 0 Chalcopyrite
Z 0 0 0 0
Zeolite group 0 0 0 0 See analcime, chabazite, heulandite, natrolite, stilbite.
Zinc blende 0 0 0 0 Sphalerite
Zincite ZnO Hex 5.68 0 4 4.5 80% Zn, orange-yellow streak
Zinc spinel ZnAl2O4 0 0 0 0 Gahnite
Zinkenite Pb6Sb22S42 Hex 5.3 0 3 3.5 Jamesonite series
Zinnwaldite K(Al,Fe,Li)3(Si,Al)4O10(OH)F Mon 3 0 2.5 3 About 5% Li2O
Zircon ZrSiO4 Tet 4.68 0 7.5 0 67.2% ZrO2
Zoisite Ca2Al3Si3O12(OH) Orth 3.3 0 6 0 Orth var. of clinozoisite
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Source: Field Geologist manual. Fifth Ed. Monograph 9. AusIMM, The Mineral Institute. AUSIMM, Aust.2011 0 0 0 0
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A more detailed list is available from the IMA Database of Mineral Properties: <http://rruff.info/ima/>. 0 0 0 0

 

 

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