Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral
Category
Synthetic (Ceramic)
Browse synthetic (ceramic) specimens identified by the Rock Identifier community.
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Coarse-grained Quartz and Feldspar Pegmatite
Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Colorless faceted gemstone, likely cubic zirconia
Cubic zirconia (synthetic zirconium dioxide, ZrO₂); possibly colorless quartz or laboratory diamond
gemstone
Goldstone
Aventurine glass
mineral (man-made glass)
Clay Brick
Ceramic structural unit (Al2O3·2SiO2·2H2O as precursor)
metamorphic (man-made/anthropogenic)
Larimar
Pectolite (NaCa2Si3O8(OH))
Mineral variant / Gemstone
Cubic Zirconia (Jewelry Setting)
Cubic Zirconia (ZrO2)
gemstone
Cubic Zirconia (Faceted)
Zirconium Dioxide (ZrO2)
mineral
Diamond (or Diamond Simulant)
Carbon (C) or Cubic Zirconia (ZrO2)
gemstone
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Synthetic Blue Aura Quartz
Silicon Dioxide (SiO2) with Metallic Infusion
mineral (synthetic/man-made coating)
Magnetite or Hematite-rich Ore
Magnetite (Fe3O4) or Hematite (Fe2O3)
mineral
Ruby
Corundum (Al2O3 with Chromium trace impurities)
mineral
Orange Sapphire
Corundum (Al2O3)
gemstone
Ametrine
Silicon Dioxide (SiO2) with iron impurities
mineral
Colorless faceted gemstone, likely cubic zirconia
Cubic zirconia (synthetic ZrO₂), possibly glass or white sapphire
gemstone
Strawberry Quartz (or Sunstone / Tumbled Quartz)
Silicon Dioxide (SiO2) with Hematite/Lepidocrocite inclusions
mineral
Rough White Zircon
Zircon (Zirconium Silicate, ZrSiO4)
mineral
Ruby
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
mineral
Diamond (in jewelry)
Cubic Carbon (C)
mineral
Goldstone (Brown)
Aventurine glass
mineraloid (man-made)
Ruby (faceted gemstone)
Corundum (Al2O3 with Cr impurities)
gemstone
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Sapphire
Corundum (Al2O3)
mineral
Ruby (Rough/Raw)
Corundum (Al2O3:Cr)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Blue opalite (often sold as synthetic opal)
Opalite glass; amorphous hydrated silica if natural opal (SiO₂·nH₂O)
gemstone
Opalite (a synthetic glass)
Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant
Mineral Simulant (Synthetic Glass)
Diamond (or Diamond Simulant)
Carbon (C) if diamond, various if simulant
gemstone
Cubic Zirconia (Diamond Simulant)
Zirconium Dioxide (ZrO2)
gemstone
Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Cultured Marble (Synthetic)
Polymer-matrix composite (typically calcium carbonate in polyester resin)
Synthetic / Composite Material
Diamond (or synthetic simulant)
Cubic C (Carbon)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Colorless faceted gemstone, likely cubic zirconia
Cubic zirconia (zirconium dioxide, ZrO₂); visual confirmation is unavailable
gemstone
Aquamarine in Onyx / Blue Topaz Pendant
Beryl (Be₃Al₂Si₆O₁₈) or Topaz (Al₂SiO₄(F,OH)₂)
gemstone
Diamond (Baguette cut)
Carbon (C)
gemstone
Ruby (Corundum)
Aluminum oxide (Al2O3) with Chromium traces
mineral
Diamond
Diamond (C)
gemstone
Blue Agate Geode (Dyed)
Cryptocrystalline Quartz (SiO2)
mineral