Photos of Minerals.
Acanthite
Ag2S
Acanthite (cooled Argentite)Ag2S
Actinolite crystals
Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2
Actinolite
Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2
Adamite
Zn2AsO4OH
Adventurine (Quartz)
SiO2
Agates (Quartz)
SiO2
Almandine
Fe2+3Al2Si3O12
Amethyst crystals
SiO2
Amethyst (polished)
SiO2
Anhydrite
CaSO4
Apophyllite
(K,Na)Ca4Si8O20(F,OH)·8H2O
Aquamarine (Beryl)
Be3Al2Si6O18
Aragonite
CaCO3
Aragonite Crystal
CaCO3
Arfvedsonite
[Na][Na2][(Fe2+)4Fe3+][(OH)2|Si8O22]
Arsenopyrite
FeAsS
Aurichalcite (light blue)
(Zn,Cu)5[(OH)3|CO3]2
Autunite
Ca(UO2)2(PO4)2·10-12H2O
Axinite
Ca2Fe2+Al2BOSi4O15(OH)
Azurite
Cu3(CO3)2(OH)2
Azurite (crystals)
Cu3(CO3)2(OH)2
Babingtonite on Prehnite and Quartz
Ca2(Fe,Mn)FeSi5O14(OH)
Barite
BaSO4
Barite "rose"
BaSO4
Benitoite
BaTiSi3O9
Borax
Na2B4O7·10H2O
Bornite (aka Chalcopyrite/Peacock Ore)
CuFeS2
Boulangerite
Pb5Sb4S11
Bukovskyite
Fe2(AsO4)(SO4)(OH)·7H2O
Calcite crystal
CaCO3
Calcite (blue)
CaCO3
Calcite (orange)
CaCO3
Calcite (yellow)
CaCO3
Cassiterite w/Golden Calcite
SnO2
Cavansite
Ca(VO)Si4O10·4(H2O)
Celestite
SrSO4
Cerussite
PbCO3
Chabazite
(Ca,K2,Na2)2[Al2Si4O12]2·H2O
Chalcanthite
CuSO4·5H2O
Chalcocite
Cu2S
Chalcopyrite
CuFeS2
Chondrodite with Phlogopite in Marble
Mg5(SiO4)2F2
Chrysoberyl (Alexandrite)
BeAl2O4
Chrysocolla
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O
Chrysoprase (green chalcedony)
SiO2
Cinnabar
HgS
Clinohedrite
CaZn(SiO4)·H2O
Conichalcite
CaCu(AsO4)(OH)
Cordierite (aka Iolite)
(Mg,Fe)2Al4Si5O18
Corundum
Al2O3
Covellite
CuS
Creedite
Ca3Al2(SO4)(F,OH)10·2(H2O)
Cubic Zirconia
ZrO2
Cuprite
Cu2O
Cuprosklodouskite
Cu(UO2)2(HSiO4)2·6(H2O)
Cyanotrichite (dark blue)
Cu4Al2[(OH)12|SO4]·2H2O
Cylindrite
Pb3Sn4FeSb2S14
Danburite
CaB2(SiO4)2
Datolite
CaBSiO4(OH)
Descloizite
(Pb,Zn)2VO4OH
Diopside
MgCaSi2O6
Dioptase
Cu6Si6O18·6H2O
Dioptase
Cu6Si6O18·6H2O
Dioptase
Cu6Si6O18·6H2O
Dolomite (crystal)
CaMg(CO3)2
Dumotierite
Al7BO3(SiO4)3O3
Elbaite Tourmaline
Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4
Emerald
Be3Al2(SiO3)6
Epidote
Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH)O
Epidote crystals
Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH)O
Erythrite
Co3(AsO4)2·8H2O
Erythrite
Co3(AsO4)2·8H2O
Euclase
BeAlSiO4(OH)
Euclase
BeAlSiO4(OH)
Feldspar Crystal (aka Orthoclase)
KAlSi3O8
Ferridravite
NaFe3+3(Mg2Fe3+4)(Si6O18)(BO3)3(OH)3O
Fire Opal
SiO2·nH2O
Flint (Quartz)
SiO2
Fluorite (aka Fluorspar)
CAF2
Fluorite (aka Fluorspar)
CAF2
Fluorite Crystal
CAF2
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2
Gedrite
Mg2(Mg3Al2)(Si6Al2)O22(OH)2
Glauberite
Na2Ca(SO4)2
Graphite
C
Gypsum (Fibrous - "Satin Spar")
CaSO4·2H2O
Gypsum Crystal
CaSO4·2H2O
Gyrolite (balls) on Prehnite
NaCa16(Si23Al)O60(OH)8·14H2O
Halite
NaCl
Halite
NaCl
Hausmonnite
2+Mn3+2O4
Heliodor (Beryl)
Be3Al2Si6O18
Hematite
Fe2O3
Hematite crystals
Fe2O3
Hemimorphite
Zn4Si2O7(OH)2·H2O
Hemimorphite
Zn4Si2O7(OH)2·H2O
Hollandrite
Ba(Mn4+6Mn3+2)O16·H2O
Hyalite
SiO2
Hydrozincite
Zn5(CO3)2(OH)6
Iron Pyrite
FeS2
Iron Pyrite ("sun")
FeS2
Jarosite
KFe3(SO4)2(OH)6
Jasper (Quartz)
SiO2
Jeremejevite
Al6B5O15(F,OH)3
Kyanite
Al2SiO5
Labradorite
(Ca, Na)(Al, Si)4O8
Labradorite (polished)
(Ca, Na)(Al, Si)4O8
Laumontite on Heulandite
Ca(AlSi2O6)2·4H2O, (Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O
Lepidolite (with Rubellite crystal)
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Maganocalcite (with Kutnahorite)
(Ca,Mn)CO3
Magnetite
Fe3O4
Magnetite crystals
Fe3O4
Malachite (botyroidal)
Cu2CO32
Malachite (polished)
Cu2CO32
Malachite (silky)
Cu2CO32
Manganvesuvianite
Ca19Mn3+(Al,Mn3+,Fe3+)10(Mg,Mn2+)2(Si2O7)4(SiO4)10O(OH)9
Marialite (Scapolite)
Na4(Al3Si9O24)Cl
Metatorbernite
Cu(UO2)2(PO4)2·8(H2O)
Molybdenite
MoS2
Muscovite
KAl2(AlSi3O10)(F,OH)2
Natrolite
Na2Al2Si3O10·2H2O
Nephrite jade
Ca2(Mg,Fe)5Si8O22(OH)2
Neptunite
KNa2Li(Fe2+, Mn2+)2Ti2Si8O24
Okenite
CaSi2O5·2H2O
Olivenite
Cu2AsO4OH
Olivenite
Cu2AsO4OH
Olmiite
CaMn[SiO3(OH)](OH)
Orpiment
As2S3
Pentagonite
Ca(VO)Si4O10·4(H2O)
Phosgenite
(PbCl)2CO3
Picturestone (Jasper [Quartz])
SiO2
Prehnite (with gyrolite balls)
Ca2Al(AlSi3O10)(OH)2
Pitchblende (aka Uraninite)
UO2
Purpurite
Mn3+PO4
Pyrargyrite
Ag3SbS3
Pyromorphite
Pb5(PO4)3Cl
Pyrope (garnet)
Mg3Al2(SiO4)3
Pyrophillite
Al2Si4O10(OH)2
Quartz (polished)
SiO2
Quartz point
SiO2
Realgar crystals
AsS
Rhodochrosite
SiO2
Rose Quartz (polished)
MnCO3
Rubellite crystal (on Lepidolite)
Na(Li1·5Al1·5)Al6(Si6O18)(BO3)3(OH)3(OH)
Ruby (Corundum)
Al2O3
Rutile
TiO2
Rutile (twinned, reticulated)
TiO2
Sarcopside with Graphtenite
(Fe2+,Mn2+,Mg)3(PO4)2
Scapolite
Na4(Al3Si9O24)Cl
Scorodite
FeAsO4·2H2O
Scorzalite
(Fe2+,Mg)Al2(OH,PO4)2
Sapphire (Corundum)
Al2O3
Scolecite
CaAl2Si3O10·3H2O
Seraphenite (Clinochlore)
(Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6
Serpierite, Andalusite, Linarite, Anglesite
Ca(Cu,Zn)4(SO4)2(OH)6, Al2SiO5, PbCu[(OH)2|SO4], PbSO4·3H2O
Shattuckite
Cu5(SiO3)4(OH)2
Shattuckite
Cu5(SiO3)4(OH)2
Siderite with Kaolinite
FeCO3
Skutterudite
CoAs3
Spessartine (Garnet)
Mn2+3Al2(SiO4)3
Spessartine (Garnet)
Mn2+3Al2(SiO4)3
Spessartine (Garnet)
Mn2+3Al2(SiO4)3
Sphaerocobaltite crystals
CoCO3
Sphalerite crystals
(Zn,Fe)S
Spinel, Black (on diopside)
MgAl2O4
Shattuckite
Cu5(SiO3)4(OH)2
Spinel, Red
MgAl2O4
Stibnite
Sb2S3
Stilbite
Na2CaAl2Si6O16·6H2O
Sugilite
KNa2(Fe,Mn,Al)2Li3Si12O30
Sylvanite
(Ag,Au)Te2
Tiger's Eye (Quartz)
SiO2
Topaz
Al2SiO4(F,OH)2
Torbernite
Cu(UO2)2(PO4)2·12H2O
Tourmaline (schorl)
NaFe3Al6Si6O18(BO3)3(OH)3OH
Tremolite crystals
Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2
Turquoise
CuAl6(PO4)4(OH)8·4H2O
Ulexite
NaCaB5O6(OH)6·5H2O
Vanadinite
Pb5(VO4)3Cl
Vanadinite
Pb5(VO4)3Cl
Variscite
AlPO4·2H2O
Vesuvianite
Ca10(Mg,Fe)2Al4(SiO4)5(Si2O7)2(OH,F)4
Vivianite
Fe2+Fe2+2(PO4)2·8H2O
Wavellite
Al3(PO4)2(OH,F)3·5H2O
Willemite
Zn2SiO4
Wulfenite
PbMoO4
Wulfenite (yellow)
PbMoO4
Yttrocrasite-Y & Yttrobetafite-Y
(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6 and (Y,U,Ce)2(Ti,Nb,Ta)2O6(OH)
Zincite (crystals)
(Zn,Mn)O
Zoisite (Tanzanite)
Ca2Al3(SiO4)(Si2O7)O(OH)
Zircon
ZrSiO4