Sandstone
Arenite
Category
Browse mineral like industrial smelting waste specimens identified by the Rock Identifier community.
Sandstone
Arenite
Fluorite
Fluorite (Calcium Fluoride, CaF2)
Orange Calcite
Calcite (CaCO3)
Opalite
Synthetic Silicon Dioxide (SiO2)
Ironstone (likely Limonite or Goethite)
Ferruginous sedimentary rock (FeO(OH)·nH2O)
Garnet in Quartz Matrix
Almandine Garnet (Fe3Al2(SiO4)3) in Quartz (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Agate
Silicon dioxide (SiO2)
Schist
Mica Schist (Group of medium-grade metamorphic rocks)
Milky Quartz (Beach Pebble)
Quartz (Silicon Dioxide, SiO2)
Garnet Schist
Garnetiferous Mica Schist
Pink Garnet in Matrix
Grossular or Almandine Garnet (X3Y2(SiO4)3)
Schist (Micaceous)
Mica Schist
Silver (Native Element / Alloy)
Silver (Ag)
Peridot in Basalt
Olivine ((Mg, Fe)2SiO4) in Basalt
Milky Quartz Pebble with Inclusions
Crystalline Silicon Dioxide (SiO2)
Banded Agate (Lace Agate)
Agate (Variety of Cryptocrystalline Quartz), SiO2
Quartz Geode in Sedimentary Matrix
Silicon Dioxide (SiO2) within a limestone/dolostone host
Gold Ore in Quartz
Auriferous Quartz (SiO2 with Au inclusions)
Sandstone with Algae Growth
Arenite with Chlorophyta/Lichen
Granitic Pegmatite
Pegmatite containing Quartz, Feldspar, and Muscovite mica
Granodiorite
Granodiorite (intermediate plutonic rock)
Yellow Quartz (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
Diamond
Natural Diamond (Carbon, C)
Green Tourmaline
Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)
Vanadinite
Vanadinite (Pb5(VO4)3Cl)
Olivine (Peridot)
Olivine (Mg, Fe)2SiO4
Sandstone with Foliose Lichen
Arenite (Rock matrix) with Xanthoparmelia or Flavoparmelia (Lichen genus)
Cubic Zirconia (in Jewelry)
Zirconium Dioxide (ZrO2)
Rough Blue Sapphire
Corundum (Al2O3)
Sandstone (Ferruginous)
Arenite with Iron Oxide cement
Diamond in Kimberlite
Kimberlite host rock with C (Carbon) inclusion
Corundum (Sapphire variant)
Aluminium oxide (Al2O3)
Cubic Zirconia (as a jewelry specimen)
Zirconium dioxide (ZrO2)
Bauxite
Bauxite (Al(OH)3, AlO(OH))
Bauxite
Bauxite (mainly Al(OH)3, AlO(OH))
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
Clear Quartz (Carved Dragon)
Quartz (Silicon Dioxide, SiO2)
Sandstone (with biological crust)
Arenite (SiO2 based)
Quartz (Peach/Orange variety)
Silicon Dioxide (SiO2)
Agate
Banded Chalcedony (SiO2 - Silicon Dioxide)
Native Copper Nugget
Native Copper (Cu)