Calcite Geode
Calcium Carbonate (CaCO3)
Category
Browse mineral like industrial smelting waste specimens identified by the Rock Identifier community.
Calcite Geode
Calcium Carbonate (CaCO3)
Chalcedony (Moonstone variant or White Agate)
Silicon Dioxide (SiO₂)
Sapphire (Rough Corundum)
Corundum (Aluminum Oxide, Al2O3)
Tiny amber-colored crystal fragment
Indeterminate; possibly quartz, feldspar, mica, or a sulfide mineral
Orange Calcite
Calcium Carbonate (CaCO3)
Peridotite (Dunite)
Olivine-rich Peridotite ((Mg,Fe)2SiO4)
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Sandstone (Water-worn Cobble)
Arenite (SiO2 based)
Rainbow aura quartz cluster
Quartz, silicon dioxide (SiO₂), artificially coated with a thin metallic film
Blue Sapphire
Corundum (Al2O3 with Cr, Fe, and Ti trace elements)
Bouncy Ball (Synthetic Rubber Polymer)
Polybutadiene / Ethylene Vinyl Acetate (EVA)
Garnet (Almandine-Pyrope)
Almandine-Pyrope Mg3Al2(SiO4)3 to Fe3Al2(SiO4)3
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Garnet Schist
Garnetiferous Mica Schist
Sandstone
Arenite (SiO2 based)
Greywacke
Dirty Sandstone (Lithic wacke)
Chalcedony
Silicon Dioxide (SiO₂)
Greenschist
Greenschist (Chlorite-actinolite schist)
Ruby and Diamond Heart Pendant
Corundum (Al2O3) and Diamond (C)
Sandstone
Arenite
Granitic Pegmatite
Granite Pegmatite (typically containing Quartz SiO2, Feldspar KAlSi3O8, and Muscovite)
Copper Nugget
Native Copper (Cu)
Schist
Crystalline Metamorphic Rock (Schistose)
Orange Calcite
Calcium Carbonate (CaCO3)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Mica Schist
Metamorphic rock dominated by muscovite and/or biotite mica
Sapphire
Corundum (Al2O3)
Black Tourmaline in Quartz Matrix
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4) with Quartz (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Sandstone with Foliose Lichen
Arenite (Rock matrix) with Xanthoparmelia or Flavoparmelia (Lichen genus)
Kaolinite (Chalky Clay)
Kaolinite (Al2Si2O5(OH)4)
Serpentine
Serpentinite (Mg, Fe, Ni)3Si2O5(OH)4
Fossilized turtle shell fragment
Testudines indeterminate; shell bone permineralized with silica/carbonate minerals
Opalite
Synthetic Silicon Dioxide (SiO2)
Polished ocean jasper / orbicular jasper (probable)
Silica-rich chalcedony (microcrystalline quartz, SiO₂) with iron oxides and altered volcanic inclusions
Rough Diamond
Diamond (pure Carbon, C)
Peridot in Basalt
Olivine ((Mg, Fe)2SiO4) in Basalt
Quartz River Pebble
Silicon Dioxide (SiO2)
Silver (Native Element / Alloy)
Silver (Ag)
Rough Diamond
Diamond (Native Carbon, C)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Pegmatite
Igneous Pegmatite (Quartz-Feldspar-Mica)