Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Category
Browse synthetic polymer (synthetic material) specimens identified by the Rock Identifier community.
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Diamond (likely rough or included fragment)
Diamond, crystalline carbon (C), cubic crystal system
Assorted gemstone jewelry
Mixed natural and synthetic gemstone cabochons and faceted stones; individual species cannot be determined reliably from this image
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Red faceted gemstone jewelry setting
Likely synthetic ruby or red spinel centerpiece with colorless accent stones; exact identification requires gemological testing
Ruby (Corundum)
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
Diamond (or Cubic Zirconia simulant)
Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ
Blue Sapphire
Corundum (Al2O3 with trace Titanium and Iron)
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Garden Quartz (Lodalite)
Silicon Dioxide with various mineral inclusions (SiO2)
Diamond (mounted in an ornate ring)
Diamond, crystalline carbon (C)
Colorless faceted gemstone, likely cubic zirconia or diamond
Uncertain from image; cubic zirconia (ZrO₂) is a common diamond simulant, while diamond is crystalline carbon (C)
Colorless faceted gemstone, likely cubic zirconia
Cubic zirconia (synthetic zirconium dioxide, ZrO₂); possibly colorless quartz or laboratory diamond
Goldstone
Aventurine glass
Opalite (a synthetic glass, often confused with Opal)
Silicon dioxide glass (SiO2nH2O, for natural opal)
Diamond (Baguette cut)
Carbon (C)
Aquamarine in Onyx / Blue Topaz Pendant
Beryl (Be₃Al₂Si₆O₁₈) or Topaz (Al₂SiO₄(F,OH)₂)
Mixed gemstone specimens
Likely pink sapphire or tourmaline, red garnet, blue sapphire, precious opal, and green tourmaline/emerald; exact identities cannot be confirmed from the collage
Smoky Quartz
Silicon Dioxide (SiO2)
Synthetic Blue Aura Quartz
Silicon Dioxide (SiO2) with Metallic Infusion
Magnetite or Hematite-rich Ore
Magnetite (Fe3O4) or Hematite (Fe2O3)
Ruby
Corundum (Al2O3 with Chromium trace impurities)
Red garnet cabochon-style earrings
Likely almandine garnet (Fe₃Al₂(SiO₄)₃); the image alone cannot confirm the stone or whether it is natural or synthetic.
Colorless faceted gemstone, likely glass or quartz
Uncertain; possibly quartz (SiO₂), but the strong uniform brilliance and apparent molded/faceted form may indicate leaded glass or cubic zirconia
Goldstone (Brown)
Aventurine Glass (Silicon Dioxide infused with Copper crystals)
Painted River Rock
Anthropogenic-modified Siliciclastic Sedimentary Rock
Dyed Agate
Chalcedony (SiO2)
Diamond
Carbon (C)
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
Faceted clear gemstone, likely glass or cubic zirconia
Undetermined; could be synthetic cubic zirconia (ZrO₂) or cut glass (silica-based)
Polished hematite bead necklace
Hematite (iron(III) oxide, Fe₂O₃), likely polished beads
Clear Quartz (Faceted) / White Sapphire / Goshenite
Silicon Dioxide (SiO2) / Aluminium Oxide (Al2O3)
Moonstone ring
Moonstone, a feldspar variety (typically orthoclase or adularia; KAlSi₃O₈)
Chrysocolla in Malachite
Cu2CO3(OH)2 (Malachite) / Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla)
Ammolite
Biogenic gemstone (Aragonite, CaCO3)
Opal stud earrings
Opal, hydrated amorphous silica (SiO₂·nH₂O)
Orange Sapphire
Corundum (Al2O3)
Ametrine
Silicon Dioxide (SiO2) with iron impurities
Cubic Zirconia (Jewelry Setting)
Cubic Zirconia (ZrO2)
Cubic Zirconia (Faceted)
Zirconium Dioxide (ZrO2)
Colorless faceted gemstone, likely cubic zirconia
Cubic zirconia (synthetic ZrO₂), possibly glass or white sapphire
Faceted colorless gemstone, likely diamond
Diamond, crystalline carbon (C); identity cannot be confirmed from the photo