Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Category
Browse sedimentary (jasper), mineral (aquamarine) specimens identified by the Rock Identifier community.
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
Turquoise (Rough Specimens)
Hydrous phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
Ferruginous Sandstone (Red Sandstone)
Arenite with Hematite/Limonite cement
Quartz
Silicon Dioxide (SiO2)
Quartz Geode in Sedimentary Matrix
Silicon Dioxide (SiO2) within a limestone/dolostone host
Sandstone (likely Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Smoky Quartz (Herkimer-style)
Silicon Dioxide (SiO2)
Ferruginous Sandstone (with possible Epidote/Chlorite coloring)
Sandstone (SiO2 dominated with Fe2O3 staining)
Sandstone
Arenite (predominantly SiO2)
Sandstone (Quartz-rich)
Arenite (composed mainly of SiO2)
Sandstone (likely Quartzose Sandstone)
Arenite (composed primarily of SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Grey Chalcedony (Tumbled Moon)
Microcrystalline Quartz (SiO2)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
Limestone with Quartz/Calcite Veins
Sedimentary Limestone (CaCO3 with SiO2 or CaCO3 intrusions)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Yellow Calcite
Calcium Carbonate (CaCO3)
Limonite (with Pyrite)
Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O
Zebra Jasper (usually a trade name for Serpentine or Basalt blend)
Antigorite/Chrysotile (Serpentine family) - Mg3Si2O5(OH)4
Orpiment
Orpiment (As2S3)
Quartz (Milk Quartz / Massive Quartz)
Silicon Dioxide (SiO2)
Yellow Aventurine
Silicon Dioxide with inclusions (SiO2 + Muscovite/Fuchsite)
Sandstone
Arenite (composed primarily of SiO2)
Grey River Stone (Gneiss/Schist mix)
Foliated Metamorphic Rock (variable mineral formula)
Sandstone
Arenite (SiO2 primarily)
Sandstone
Arenite
Fluorite
Fluorite (Calcium Fluoride - CaF2)
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (Lithic Sandstone)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 oxides)
Sandstone
Arenite (primarily SiO2)
Ferruginous Sandstone (Gozzan)
Iron-rich clastic sedimentary rock with Limonite/Goethite
Kaolinite (Chalky Clay)
Kaolinite (Al2Si2O5(OH)4)
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
Sandstone (with potentially high Feldspar/Arkose content)
Clastic sedimentary rock (SiO2 dominated)
Quartz Vein in Pelite (Metamorphic Rock)
Hydrothermal Quartz Veining in Metasedimentary Rock (SiO2)
Goethite (Iron Ore)
Goethite (FeO(OH))
Sandstone Pebble
Arenite (primarily SiO2)
Sandstone (Ferruginous/Banded)
Clastic Terrigenous Sandstone (SiO2 with Fe2O3 cement)