Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
mineral
Category
Mineral (Synthetic Paper And Ink Polymorph)
Browse mineral (synthetic paper and ink polymorph) specimens identified by the Rock Identifier community.
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Selenite
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
gemstone
Muscovite Mica (Golden/Yellow variety)
KAl2(AlSi3O10)(F,OH)2
mineral
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
mineral
Opalite crescent pendant
Opalite (man-made opalescent glass; not a natural mineral)
gemstone
Cubic Zirconia
Cubic Zirconium Dioxide (ZrO2)
mineral
Cubic Zirconia
Zirconium dioxide (ZrO2)
mineral
Quartz with Schist/Mica Inclusions
Crystalline Silicon Dioxide (SiO2) with Phyllosilicates
metamorphic
Parti Sapphire
Corundum (Al2O3)
mineral
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Non-geological / Synthetic
Blue Goldstone
Man-made glass with cobalt and metal flecks
man-made glass
Opalite
Synthetically produced glass (Silicon Dioxide with metallic inclusions)
Mineraloid (Man-made Glass)
Molybdenite in Quartz
Molybdenite (MoS2) with Quartz (SiO2)
mineral
Pearl and Garnet Glass
Calcium Carbonate (CaCO3) for pearl; Silicon Dioxide (SiO2) for glass
mineral and glass
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Kaolinite (Chalky Clay)
Kaolinite (Al2Si2O5(OH)4)
sedimentary
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
mineral
Barite
Barium sulfate (BaSO4)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Kaolinite (Kaolin)
Kaolinite (Al2Si2O5(OH)4)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
mineral
Cubic Zirconia (Simulated Diamond)
Zirconium dioxide (ZrO2)
mineral
Kyanite (within Quartz)
Kyanite (Al2SiO5) in crystalline Quartz base (SiO2)
metamorphic
Ruby / Red Corundum
Al2O3 (Aluminum Oxide with Chromium trace)
gemstone
Sandstone (with biological crust)
Arenite (SiO2 based)
sedimentary
Graphite
Graphite (Carbon, C)
mineral
Note: Item is not a geological specimen
Polyester mesh and Ethylene-vinyl acetate (EVA) polymer
Synthetic / Anthropogenic Material
Mica (Biotite or Phlogopite Buchsam)
Silicate Mineral (Phyllosilicate family)
mineral
Ruby / Red Tourmaline
Corundum (Al2O3) or Elbaite (Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)4)
mineral
Ruby
Corundum (Al2O3 with Chromium)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone (Pebble)
Sandstone (SiO2 with matrix/cement)
sedimentary
Graphite
Graphite (Carbon, C)
mineral
Asphalt / Road Aggregate
Bituminous Conglomerate (synthetic)
sedimentary
Aragonite Star Cluster (or Aragonite Sputnik)
Aragonite (Orthorhombic Calcium Carbonate, CaCO3)
mineral
Aragonite
Aragonite (CaCO3)
mineral
Clear Quartz crystals on a Matrix base (Geode fragment)
Silicon Dioxide (SiO2)
mineral
Synthetic Marbled Aggregate (Footwear Component)
Ethylene-vinyl acetate (Croslite™)
not a rock (man-made polymer)
Kaolinite (China Clay)
Kaolinite (Al2Si2O5(OH)4)
sedimentary