Apatite
Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))
Category
Browse mineral health specimens identified by the Rock Identifier community.
Apatite
Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))
Fluorite
Calcium fluoride (CaF2)
Granite
Intrusive Igneous Rock
Amygdaloidal Basalt
Amygdaloidal Basalt (containing quartz/agate or zeolite fill)
Schist
Mica Schist
Quartz Vein in Hematitic Siltstone
Hydrothermal Quartz (SiO2) in Ferriferous Matrix
Pyrite
Iron Sulfide (FeS2)
Limonite
FeO(OH)·nH2O
Pyrite
Iron Sulfide (FeS2)
Mica Schist or Muscovite
KAl2(AlSi3O10)(OH)2
Limonite with Gossan / Iron Ore
Hydrated iron oxide-hydroxide, approximately FeO(OH)·nH2O
Graphite
Graphite (Carbon, C)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(F,OH)2)
Specular Hematite
Hematite (Fe2O3)
Ironstone / Hematite
Iron(III) oxide (Fe2O3)
Celestite
Celestine (SrSO4)
Graphite
Graphite (Carbon, C)
Galena with Pyrite
Lead Sulfide (PbS) associated with Iron Sulfide (FeS2)
Feldspar
Triclinic or Monoclinic Tectosilicate (e.g., KAlSi3O8)
Chalcopyrite
CuFeS2
Hematite
Hematite (Fe2O3)
Muscovite
KAl2(AlSi3O10)(OH)2
Pyrite
Iron Sulfide (FeS2)
Quartz Crystal
Silicon Dioxide (SiO2)
Greenschist
Chlorite Schist (Greenschist Facies)
Calcite
Calcium Carbonate (CaCO3)
Malachite-bearing Rock
Cu2CO3(OH)2
Copper Ore / Altered Granodiorite
Cupriferous rock with silicate gangue
Graphite
Carbon (C)
Galena
Lead Sulfide (PbS)
Muscovite Mica
KAl2(AlSi3O10)(OH)2
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
Muscovite Mica
KAl2(AlSi3O10)(OH)2
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
K-Feldspar (Potassium Feldspar)
Orthoclase / Microcline (KAlSi3O8)
Microcline Feldspar
KAlSi3O8
Graphite
Graphite (Carbon, C)
Pyrite
Iron Sulfide (FeS2)
Limonite
FeO(OH)·nH2O
Limonite
FeO(OH)·nH2O (Hydrated iron oxide-hydroxide)
Muscovite
Muscovite (KAl2(AlSi3O10)(OH)2)