Bauxite
Bauxite (Al2O3·nH2O)
Category
Browse mineral (extraterrestrial) specimens identified by the Rock Identifier community.
Bauxite
Bauxite (Al2O3·nH2O)
Limonite-stained Quartz
Silicon Dioxide (SiO2) with Iron Oxide/Hydroxide (FeO(OH)·nH2O) staining
Chert (specifically Flint or Jasper variant)
Microcrystalline Quartz (SiO2)
Limonite
Limonite (FeOO·nH2O)
Lapis Lazuli
Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Chrysocolla on Matrix
Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O
Amygdaloidal Basalt
Amygdaloidal Mafic Volcanic Rock (Basalt)
Jade (likely Jadeite or Nephrite)
Jadeite (NaAlSi2O6) or Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
Basalt with Epidote (Greenstone)
Amygdaloidal Basalt (Ca2(Al, Fe)3(SiO4)3(OH) inclusions)
Limonite (Iron Ore)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
Chrysocolla in Matrix
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
Chrysocolla on Quartz with Iron Oxides
Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)
Ferruginous Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions (Limonite/Goethite)
Note: No specimen visible
Laterite
Laterite (Ferricrete / Alcrete)
Quartzite
Quartzite (Primary mineral: Silicon Dioxide, SiO₂)
Hypersthene
(Mg,Fe)SiO3 - Enstatite-Ferrosilite series
Chrysocolla
Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O
Gneiss
Metamorphic Gneiss
Gneiss (with Quartzite and Mica)
Gneiss
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Diorite
Phaneritic plutonic rock (dominated by plagioclase feldspar and hornblende)
Azurite
Azurite (Cu3(CO3)2(OH)2)
Kidney Stone
Calcium Oxalate (CaC2O4·nH2O)
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Sulfur on Quartz
Native Sulfur (S8) with Quartz (SiO2)
Gneiss
Foliated Metamorphic Rock (Gneiss)
Sandstone
Arenite (SiO2 based)
Hematite
Hematite (Fe2O3)
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Granite or Pegmatite in host rock
Granitoid / Felsic Intrusive Rock
Sandstone (with potential mineral inclusions)
Clastic sedimentary rock (primarily Quartz, SiO2)
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Limonite (Ironstone)
Limonite (mixture of hydrated iron(III) oxide-hydroxides)
Bauxite
Bauxite (Al2O3·2H2O mixed with iron oxides)
Yellow Ochre / Limonite
Limonite (FeO(OH)·nH2O)
Orthoclase Feldspar
Potassium aluminum silicate (KAlSi3O8)
Limonite (Iron Stone/Gossen)
Limonite (FeO(OH)·nH2O)
Limonite
Limonite (Hydrated iron oxide mixture, FeO(OH)·nH2O)
Glaucophane-bearing Schist (Blueschist)
Blueschist (Glaucophane-Lawsonite Schist)