Opalite
Synthetic Glass (Simulated Opal)
Category
Browse synthetic polymer (synthetic material) specimens identified by the Rock Identifier community.
Opalite
Synthetic Glass (Simulated Opal)
Opalite
Synthetic glass / Opalized glass
Opalite
Synthetic Glass (Simulated Opal)
Opalite Egg
Synthetic Glass (Simulated Opal)
Opalite
Synthetic Glass (SiO2 + impurities)
Opalite
Synthetic Silicon Dioxide (SiO2)
Blue cabochon gemstone, likely blue sapphire
Corundum (Al₂O₃), colored blue by trace iron and titanium
Sapphire
Corundum (Al2O3)
Gemstone-set silver jewelry piece
Likely mixed faceted gemstones in a silver-colored metal setting; stones may include sapphire, ruby/garnet, and yellow sapphire or citrine, but the image is insufficient for species-level identification.
Hematite
Iron(III) oxide, Fe2O3
Diamond (or Cut Gemstone / Cubic Zirconia)
Carbon (C)
Blue-green faceted gemstone, likely turquoise or treated turquoise
Turquoise: hydrated copper–aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O; exact identification is uncertain from the image
Amber (and Cubic Zirconia)
Fossilized Tree Resin
Citrine
Silicon Dioxide (SiO2)
Honey-colored amber
Amber (fossilized plant resin; chiefly polymerized terpenoid compounds)
Opalite
Synthetic glass / Opaque silicious glass
Blue topaz-style pendant (stone identity uncertain)
Possibly blue topaz (Al₂SiO₄(F,OH)₂); the image cannot confirm whether the stone is natural or synthetic
Tumbled green beryl or glassy green gemstone
Likely beryl, Be₃Al₂Si₆O₁₈; possibly treated emerald or synthetic glass
Blue glassy-looking specimen, possibly dyed or coated mineral
Not identifiable from the photograph; possibilities include dyed quartz or glassy slag, but composition cannot be established visually.
Opalite (Synthetic Opalized Glass)
Synthetic Silicon Dioxide (SiO2) glass
Amethyst (faceted gemstone)
Quartz, silicon dioxide (SiO₂), purple variety colored mainly by iron-related defects
Green faceted gemstone, likely emerald
Beryl, Be₃Al₂Si₆O₁₈, colored green by chromium and/or vanadium
Green gemstone ring (likely synthetic or imitation emerald)
Possibly emerald, beryl (Be₃Al₂Si₆O₁₈); the photo cannot confirm the center stone’s identity or whether it is natural.
Red faceted gemstone, possibly ruby (identification uncertain)
Ruby, if natural: corundum (Al₂O₃) colored by chromium
Pink/red faceted gemstone, likely synthetic corundum or glass imitation
Corundum (Al₂O₃), ruby/sapphire variety; exact identification requires testing
Green glassy gemstone-like specimen
Likely synthetic glass or treated quartz; exact identification requires testing
Blue stone cabochon, likely lapis lazuli or dyed stone
Lapis lazuli: lazurite-rich rock, chiefly (Na,Ca)₈(AlSiO₄)₆(S,SO)₂; exact identification is uncertain from the image
Carborundum (Silicon Carbide)
Silicon carbide (SiC)
Dyed or synthetic turquoise-blue glass-like specimen
Likely man-made colored glass or resin; exact identification requires testing
Small blue cut gemstone, possibly synthetic spinel or glass; species cannot be determined from the photo
Undetermined; blue synthetic spinel (MgAl₂O₄) is one possibility
Clear faceted gemstone, likely cubic zirconia
Synthetic zirconium dioxide (ZrO₂), probably cubic zirconia; exact identification requires testing
Cat's Eye Moonstone (Simulated/Synthetic or natural Cat's Eye Quartz/Glass)
There is no single scientific name. The appearance suggests either: Moonstone (feldspar group), Cat's Eye Quartz (SiO2), Apatite (Ca5(PO4)3(F,Cl,OH)), or most likely a synthetic material such as Fiber Optic Glass or 'Opalite' (a type of glass).
Hematite bead bracelet
Hematite (iron(III) oxide, Fe₂O₃), likely polished magnetic hematite or hematite-coated beads
Cherry Quartz with Rose Quartz
Crystalline Quartz (SiO2) with glass-based synthetic components
Yellow faceted gemstone, likely citrine or synthetic glass
Citrine (quartz, SiO₂) is the leading natural possibility; visual identification is uncertain from the photograph
Blue-green cut gemstone, possibly aquamarine
Unconfirmed; aquamarine is blue-green beryl, Be₃Al₂Si₆O₁₈
Goldstone
Aventurine glass (Synthetic glass with copper inclusions)
Blue-stone and diamond ring
Blue stone is possibly blue sapphire (corundum, Al₂O₃); surrounding stones appear to be diamonds (carbon, C).
Faceted black gemstone, likely black spinel
Spinel (MgAl₂O₄); identification from the image is uncertain
Green faceted gemstone, likely tsavorite garnet
Tsavorite: green grossular garnet, Ca₃Al₂(SiO₄)₃
Diamond (or Diamond Simulant)
Carbon (C) if diamond, various if simulant
Blue Goldstone
Man-made glass infused with copper crystals