Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
Category
Browse sedimentary mineral specimens identified by the Rock Identifier community.
Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Clay (as a rock-forming material)
Clay minerals (e.g., Kaolinite group, Smectite group, Illite group, Chlorite group)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (Lithic arenite / Quartz arenite)
Sandstone
Arenite (primarily SiO2)
Concretion
Various mineral compositions, typically carbonate or iron oxide cemented sediment
Sandstone Geode (Unbroken)
Siliciclastic sedimentary rock (primarily Quartz)
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone (Ferruginous)
Arenite (SiO2 with Iron Oxide impurities)
Tree Agate
Dendritic Chalcedony (SiO2)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Limonite (Gozzany Iron)
Limonite (FeO(OH)·nH2O)
Herkimer Diamond (Quartz Crystal)
Silicon Dioxide (SiO2)
Sandstone (Pebble)
Clastic sedimentary rock (SiO2 primary)
Pyrite Geode (Sparkling Druzy)
Iron Sulfide (FeS2) in Sedimentary Nodule
Pyrite in Shale
Iron Disulfide (FeS2) in Sedimentary Shale
Schist
Mica Schist
River Pebble (Brecciated Chert/Siltstone)
Silicon Dioxide (SiO2) with mineral inclusions
Black Jasper
Black Jasper (Silicate mineral - SiO2)
Pyrite in Limestone
Iron Sulfide (FeS2) in Calcium Carbonate (CaCO3)
Ferruginous Quartz
Quartz with Iron Oxide inclusions (SiO2 + Fe2O3)
Red Quartz (Druzy)
Silicon Dioxide (SiO2) with Hematite inclusions
Milky Quartz / Rose Quartz fragment
Silicon Dioxide (SiO2)
Milky Quartz with Iron Inclusions
Quartz (Silicon Dioxide, SiO2)
Milky Quartz in Matrix
Silicon Dioxide (SiO2)
Bauxite
Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)
Sandstone (Quartz-rich)
Arenite (SiO2 based clastic rock)
Glauconitic Sandstone
Glauconitic Sandstone (complex silicate formula: (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)
Marble
Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)
Orange Calcite
Calcium Carbonate (CaCO3)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Orange Calcite
Calcium Carbonate (CaCO3)
Quartz Geode (Cracked)
Quartz (Silicon Dioxide, SiO2)
Selenite (Gypsum Variety)
Hydrous Calcium Sulfate (CaSO4·2H2O)
Celestite (Celestine)
Strontium sulfate (SrSO4)
Quartz Geode
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Banded Agate (specifically Carnelian Agate)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Quartz Geode
Silicon Dioxide (SiO2)
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Variscite in Matrix
Variscite (AlPO4 · 2H2O)