Blue Sapphire
Corundum (Al2O3)
gemstone
Category
Synthetic (Ceramic)
Browse synthetic (ceramic) specimens identified by the Rock Identifier community.
Learn about Synthetic (Ceramic) in the encyclopedia
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Cubic Zirconia (CZ)
Cubic Zirconium Dioxide (ZrO2)
mineral (synthetic)
Cubic Zirconia (as a jewelry specimen)
Zirconium dioxide (ZrO2)
mineral
Ametrine
SiO2 (Silicon Dioxide with iron impurities)
gemstone
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Iron-rich sandstone (Gozan/Ironstone)
Ferruginous Sandstone (clastic sedimentary rock)
sedimentary
Dumortierite Quartz
Dumortierite in Quartz (SiO2 with Al7BO3(SiO4)3(O,OH)3)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite (with possible Calcite/Limestone weathering)
Quartzite (primarily SiO2)
metamorphic
Chert (v. Flint)
Sedimentary Cryptocrystalline Quartz (SiO2)
sedimentary
Moissanite
Silicon Carbide (SiC)
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Blue Sapphire (likely lab-grown or treated)
Corundum (Aluminum Oxide, Al2O3)
gemstone
Milky quartz pebble
Quartz (silicon dioxide, SiO₂)
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chert (concretionary/nodular variant)
Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions
sedimentary
Pink/red faceted gemstone, likely synthetic ruby or pink sapphire
Corundum, aluminum oxide (Al₂O₃); likely lab-grown or treated material
gemstone
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Faceted Diamond or Cubic Zirconia
Carbon (C) for Diamond; Zirconium dioxide (ZrO2) for CZ
mineral
Blue Quartz / Glass Gemstone Pendant
SiO2 (Silicon Dioxide) or Synthetic Glass
gemstone
Diamond (or Cubic Zirconia simulant)
C (Carbon) or ZrO2 (Zirconium Dioxide)
gemstone
Orgonite Pyramid (containing Amethyst and mixed minerals)
Silicon Dioxide (SiO2) in synthetic resin
gemstone
Opalite
Opalescent Glass (SiO2 + coloring agents)
Mineral (Synthetic/Man-made)
Diamond or Cubic Zirconia
Carbon (diamond) or Zirconium dioxide (cubic zirconia)
gemstone
Strawberry Quartz (Hematoid Quartz)
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
mineral
Emerald
Beryl (Be₃Al₂Si₆Oထ₈) with Chromium/Vanadium impurities
gemstone
Synthetic Marbled Aggregate (Footwear Component)
Ethylene-vinyl acetate (Croslite™)
not a rock (man-made polymer)
Blue Goldstone
Aventurine Glass
Man-made mineral simulant (Glass)
Silicon Carbide (Carborundum)
Moissanite (SiC), though mostly synthetic
mineral
Opalite
Synthetic Glass (Amorphized Silicon Dioxide)
mineraloid
Lapidary Wax (imitation/wax model)
Hydrocarbon wax blend with colorant (imitating Lapis Lazuli/Emerald)
mineral
Limonite (Iron Ore)
Limonite; FeO(OH)·nH2O
mineral
Colorless Gemstone (possibly Diamond or Cubic Zirconia)
C (Diamond) or ZrO2 (Cubic Zirconia)
gemstone
Pearl and Garnet Glass
Calcium Carbonate (CaCO3) for pearl; Silicon Dioxide (SiO2) for glass
mineral and glass
Ferruginous Sandstone (Ironstone)
Arenite with Limonite/Goethite cement
sedimentary
Sapphire
Corundum (Al2O3)
gemstone
Aura Quartz
Silicon Dioxide (SiO2) with Titanium/Metal vapor coating
mineral
Dalmatian Stone
Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock
igneous