Red Sandstone
Arenite (predominantly Quartz with Hematite cementation)
Category
Browse mineral (evaporite) specimens identified by the Rock Identifier community.
Red Sandstone
Arenite (predominantly Quartz with Hematite cementation)
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
Red Sandstone
Arenite
Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
Quartz Druzy on Matrix (with Copper Mineralization)
Silicon Dioxide (SiO2) with Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·n H2O)
Botryoidal Chalcedony with Calcite
Chalcedony (SiO2 with accessory minerals, likely CaCO3)
Petrified Wood
Silicified wood (Quartz, SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Orthoclase (Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
Azurite
Azurite (Cu3(CO3)2(OH)2)
Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
Druzy Quartz
Crystalline Silicon Dioxide (SiO2)
Celestite (Celestine)
Strontium Sulfate (SrSO4)
Himalayan Pink Salt
Halite (NaCl) with trace minerals (Iron, Magnesium, Potassium)
Basalt with Amygdules
Amygdaloidal Basalt
Malachite
Malachite [Cu2CO3(OH)2]
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Red Sandstone
Arenite (Ferruginous Sandstone)
Sandstone (with Iron Staining)
Arenite (primarily SiO2 with Fe2O3/FeO(OH) oxides)
Botryoidal Hematite (Kidney Ore)
Hematite (Fe2O3)
Ironstone Concretion / Goethite-Hematite Nodule
Goethite/Hematite (α-FeO(OH) / Fe2O3)
Druzy Chalcedony/Quartz on Fluorite core
Silicon Dioxide (SiO2) on Calcium Fluoride (CaF2)
Turquoise
CuAl6(PO4)4(OH)8·4H2O
Sandstone
Arenite
Sandstone (Ferruginous)
Arenite with iron oxide cement (Fe2O3)
Turquoise and Hematite
Turquoise: CuAl6(PO4)4(OH)8·4H2O; Hematite: Fe2O3
Shale with Pyrite
Clastic sedimentary rock containing Iron Disulfide (FeS2)
Malachite
Malachite (Copper Carbonate Hydroxide) - Cu2CO3(OH)2
Limonite/Goethite on Shale
Hydrous ferric oxides (FeO(OH)·nH2O) often associated with argillaceous rock
Fluorite
Calcium Fluoride (CaF2)
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
Pyrite (Iron Pyrites)
Iron Sulfide (FeS2)
Liesegang Banded Sandstone (Wonderstone)
Ferruginous Sandstone with Liesegang Rings
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz with Hematite/Limonite oxides)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Orbicular Granite
Orbicular Granitoid
Blue Lace Agate
Cryptocrystalline Quartz (SiO2) with trace minerals
Amygdaloidal Basalt with Zeolite/Quartz Infill
Amygdaloidal Basalt (Host: (Mg,Fe)2SiO4 / CaAl2Si2O8; Infill: SiO2 or Na2Al2Si3O10·2H2O)
Garnet
Garnet Group (Silicate Minerals), formula varies e.g., Alm: Fe3Al2(SiO4)3
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Quartz with Epidote
Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate [Ca2(Al,Fe)3(SiO4)3(OH)]
Quartz Geode
Silicon Dioxide (SiO2)