Quartz
Silicon Dioxide (SiO2)
mineral
Category
Mineral Specimen
Browse mineral specimen specimens identified by the Rock Identifier community.
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Almandine Garnet
Almandine, Fe3Al2(SiO4)3
mineral
Almandine Garnet
Fe3Al2(SiO4)3
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Ochre
Limonite/Goethite clay mixture, FeO(OH)·nH2O
mineral
Gypsum
Calcium Sulfate Dihydrate (CaSO4·2H2O)
mineral
Halite
Sodium Chloride (NaCl)
mineral
Quartz
Silicon dioxide (SiO2)
mineral
Feldspar
Potassium or Plagioclase Feldspar (KAlSi3O8 - NaAlSi3O8)
mineral
Limonite
FeO(OH)•nH2O
mineral
Feldspar
Aluminosilicate (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8)
mineral
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Hematite
Hematite (Fe2O3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Galena
Lead Sulfide (PbS)
mineral
Apatite
Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)
mineral
Lepidolite
K(Li,Al)3(Al,Si,4)10(O,F,OH)2
mineral
Pyrite in Matrix (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Hematite
Hematite (Fe2O3)
mineral
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Quartz with Iron Staining
Silicon Dioxide with Iron Oxides (SiO2 + Fe2O3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Feldspar
Aluminosilicate (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8)
mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb,Cs)4O10(F,OH)2
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Hematite
Hematite (Fe2O3)
mineral
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
mineral
Kyanite
Al2SiO5
mineral
K-feldspar
Potassium Feldspar (Orthoclase/Microcline, KAlSi3O8)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Epidote
Ca2Al2(Fe3+,Al)(SiO43)(Si2O7)O(OH)
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Glauconite
(K,Na)(Al,Fe^3+,Mg)2(Al,Si)4O10(OH)2
sedimentary
Hematite
Iron(III) oxide (Fe2O3)
mineral
Lepidolite
K(Li,Al)3(Al,Si,V)4O10(F,OH)2
mineral