Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
Category
Browse mineral like industrial smelting waste specimens identified by the Rock Identifier community.
Chalcedony (Botryoidal)
Silicon Dioxide (SiO2)
Desert Rose (Gypsum Variety)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
Diamond
Diamond (C)
Schist (with Iron Oxide)
Mica Schist
Smoky Quartz (with inclusions)
Silicon Dioxide (SiO2)
Sandstone (Quartz-rich Cobble)
Arenite
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Mica Schist
Metamorphic rock dominated by micas (muscovite, biotite)
Sandstone (Banded)
Clastic Sedimentary Rock (composed of SiO2, CaCO3, or Fe2O3 cement)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone (Pebble)
Sandstone (SiO2 with iron oxide impurities)
Quartz with Hematite
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
Marble
Recrystallized Calcite (CaCO3)
Pegmatite
Granitic Pegmatite
Quartz (Iron-Stained Quartz Pebble)
Silicon Dioxide (SiO2)
Silicon (Industrial Grade)
Elemental Silicon (Si)
Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
Black Sand (Magnetite/Heavy Mineral Concentrate)
Magnetite-rich Placers (Fe3O4)
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
Garnet (Almandine)
Almandine, Fe3Al2(SiO4)3
Coarse Sand Grain / Lithic Fragment
Clastic Sediment (Lithic fragment or Quartz/Feldspar grain)
Fossilized oyster shell in limestone
Bivalvia fossil; chiefly calcite (CaCO₃)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock - Arenite
Yellow Agate (Chalcedony)
Silicon Dioxide (SiO2)
Vesicular Basalt
Aphanitic Mafic Volcanic Rock
Rough White Zircon
Zircon (Zirconium Silicate, ZrSiO4)
Agate
Agate (Silicon Dioxide, SiO2)
Garnet Gneiss
Gneiss containing almandine-pyrope garnet
Agate
Silicon dioxide (SiO2) - variety Chalcedony
Beryl (Aquamarine variety)
Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)
Shale
Shale (claystone/mudstone)
Botryoidal Chalcedony
Silicon Dioxide (SiO2)
Fluorite
Calcium fluoride (CaF2)
Olivine (Peridot)
Magnesium Iron Silicate ((Mg, Fe)2SiO4)
Iron-stained Quartz Vein
Silicon Dioxide (SiO2) with Limonite/Hematite inclusions
Ruby (Raw Corundum)
Alumina (Al2O3) with Chromium traces
Greenschist
Greenschist (Chlorite-actinolite schist)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Rough Diamond
Diamond (C)
Bauxite
Bauxite (Al2O3·nH2O)
Quartz Geode
Silicon Dioxide (SiO2)