Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
Category
Browse mineral precipitate (anthropogenic context) specimens identified by the Rock Identifier community.
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
Red Sandstone
Arenite (Ferruginous Sandstone)
Howlite (Tumbled)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
Red Sandstone
Arenite (Ferruginous Sandstone)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Sandstone (Wonderstone)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Ferruginous Sandstone
Sandstone with Iron Oxide (Limonite/Goethite)
Breciated Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Native Copper with Malachite and Chrysocolla
Native Copper (Cu) with Malachite [Cu2CO3(OH)2] and Chrysocolla [(Cu,Al)2H2Si2O5(OH)4·nH2O]
Wishing Stone (Basalt/Siltstone with Quartz/Calcite vein)
Carbonaceous Siltstone with Quartz (SiO2) or Calcite (CaCO3) vein
Sandstone with Manganese Oxide Patina
Clastic Sedimentary Rock (primarily SiO2)
Rainbow Fluorite
Fluorite (Calcium Fluoride, CaF2)
Rough Green Fluorite
Fluorite (Calcium Fluoride - CaF2)
Green Fluorite
Fluorite (Calcium Fluoride - CaF2)
Assorted Decorative Tumbled Stones (Quartz, Sodalite, Aventurine, Calcite)
Mixed Silicates and Carbonates (SiO2, Na8(Al6Si6O24)Cl2, CaCO3)
Amphibolite
Amphibolite
Aquamarine
Beryl (Be3Al2Si6O18)
Sandstone (Ferruginous)
Arenite with Iron-oxide inclusions (SiO2 primarily)
Sandstone (Red Sandstone / River Stone)
Arenite (composed primarily of Quartz, SiO2, with Iron Oxide cementation)
White Marble
Recrystallized Calcite (CaCO3)
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Sunstone
Oligoclase (Plagioclase Feldspar) - (Ca, Na)(Al, Si)4O8
Lapis Lazuli
Complex mixture of minerals (lazurite, calcite, pyrite, and sodalite); (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
Chrysocolla
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Hydrated Copper Phyllosilicate)
Chrysocolla
Hydrated copper silicates (Cu,Al)2H2Si2O5(OH)4·nH2O
Eudialyte
Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Sandstone (Ferruginous)
Arenite (with Iron Oxides)
Turquoise
Hydrated phosphate of copper and aluminum - CuAl6(PO4)4(OH)8·4H2O
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Sandstone
Arenicola (comprising mostly Quartz, SiO2)
Red Sandstone (Hematitic)
Clastic sedimentary rock (SiO2 with Fe2O3 inclusions)
Sandstone (Ferruginous)
Arenite (with Goethite/Limonite cement)
Sandstone (with Chert/Quartzite)
Arenite (SiO2 primarily)
Sandstone
Arenite (primarily SiO2 with Fe2O3)
Apatite
Fluorapatite (Ca5(PO4)3F)
Glauconite
(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Raw Emerald in Schist Matrix
Beryl (Be3Al2Si6O18) in Mica Schist
Schist
Mica Schist
Pink Spinel
Magnesium Aluminum Oxide (MgAl2O4)