Sandstone
Arenite (composed primarily of SiO2)
Category
Browse sedimentary (chemically precipitated mineral) specimens identified by the Rock Identifier community.
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Pyrite
Iron Sulfide (FeS2)
Sandstone
Arenite
Sandstone (Painted)
Arenite (primarily SiO2)
Sandstone (likely Arkose or Quartz Sandstone)
Arenite (SiO2 + varied clasts)
Jasper (Iron-rich)
Silicon Dioxide (SiO2) with Fe2O3 (Hematite) impurities
Ruby in Kyanite
Corundum in Disthene (Al2SiO5 + Al2O3)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (Fossiliferous)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone (likely Quartzose Sandstone with mineral staining)
Arenite (composed mainly of SiO2)
Shale with Pyrite
Clastic sedimentary rock containing Iron Disulfide (FeS2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (Yellow/Tan Sandstone)
Arenite (primarily Quartz, SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Sandstone (likely Quartz Sandstone)
Arenite (SiO2 based)
Sandstone
Arenite (primarily SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Gneiss
Gneiss
Desert Varnish on Sandstone
Ferromanganese coating on Quartz Arenite
Diorite (Salt and Pepper Rock)
Phaneritic Plutonic Diorite; chemical composition roughly 52-63% silica (SiO2)
Sandstone (likely Quartzose)
Arenite (SiO2 principal mineral)
Serpentinite
Serpentinite
Magnetite / Iron Ore
Magnetite (Fe3O4)
Weathered Sandstone with Algae Growth
Arenite
Sandstone with Algae Growth
Arenite with Chlorophyta/Lichen
Fluorite
Calcium Fluoride (CaF2)
Pyrite (Iron Pyrites)
Iron Sulfide (FeS2)
Garnet
Garnet Group (complex nesosilicates with general formula X3Y2(SiO4)3, where X can be Ca, Mg, Fe2+, Mn2+ and Y can be Al, Fe3+, Cr3+, V3+)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Sandstone
Arenite (SiO2 based)
Gneiss
Gneiss (High-grade regional metamorphic rock)
Limonite (Iron Ore)
Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)
Turquoise (possible Dyed Howlite or Magnesite imitation)
CuAl6(PO4)4(OH)8·4H2O (Turquoise)
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)
Blue Celestite (Celestine)
Strontium sulfate (SrSO4)
Granular Sandstone
Arenite (variable composition, primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (composed primarily of SiO2)