Raw ruby (corundum)
Ruby variety of corundum, aluminum oxide (Al₂O₃), colored chiefly by chromium
Category
Browse synthetic polymer (synthetic material) specimens identified by the Rock Identifier community.
Raw ruby (corundum)
Ruby variety of corundum, aluminum oxide (Al₂O₃), colored chiefly by chromium
Clear quartz crystal sphere
Quartz (silicon dioxide, SiO₂)
Blue Goldstone
Synthetic glass with copper or cobalt/manganese inclusions
White cabochon gemstone, likely agate or chalcedony
Cryptocrystalline quartz (SiO₂), probably chalcedony/agate; exact identification is uncertain from the overexposed image
Cubic Zirconia (Jewelry Setting)
Zirconium Dioxide (ZrO2)
Opalite
Man-made Glass (SiO2 + additives)
Bowling Ball (Brunswick T-Zone Deep Space)
Polyester resin / Polyurethane polymer
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Tumbled amethyst
Amethyst, purple quartz (SiO₂), colored by trace iron and irradiation
Tumbled amethyst
Quartz, crystalline silicon dioxide (SiO₂), purple variety colored mainly by iron impurities and irradiation
Cubic Zirconia
Zirconium Dioxide (ZrO2)
Blue-green turquoise (probable)
Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O
Ruby (faceted gemstone in a ring)
Corundum, Al₂O₃; red color typically from trace chromium
Red corundum (ruby-colored polished crystal)
Corundum, aluminum oxide (Al₂O₃); red color is typically caused by chromium
Opalite
Synthetic glass / Opaque silicious glass
Cut red gemstone, likely ruby
Ruby, gem-quality corundum (Al₂O₃) colored by chromium
Green faceted bead strand, likely dyed or synthetic material
Uncertain; possibly green-dyed quartz, glass, or lab-created emerald-like material
Yellow faceted gemstone earrings, likely citrine or yellow beryl
Citrine: quartz, SiO₂; possible yellow beryl: Be₃Al₂Si₆O₁₈
Red faceted gemstone, likely synthetic ruby
Corundum (Al₂O₃), chromium-colored; possibly flame-fusion synthetic ruby
Ruby (Raw Corundum)
Al2O3 (Aluminum Oxide)
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Red cabochon gemstone ring (likely ruby or red spinel; identity unconfirmed)
Possibly corundum (ruby, Al₂O₃) or spinel (MgAl₂O₄); visual identification alone cannot distinguish these from glass or synthetic stones.
Pearl (Imitation / Cultured Pearl)
Calcium carbonate (CaCO3) with conchiolin (or synthetic glass/plastic imitation)
Artificial Rock Face (Faux Rock)
Glass Fiber Reinforced Concrete (GFRC)
Blue Goldstone
Auraventurine (Synthetic glass with cobalt and copper inclusions)
Opal ring
Common opal, likely synthetic or assembled blue-green opal (hydrated amorphous silica, SiO₂·nH₂O)
Decorative opal-like turtle mosaic
Likely imitation or assembled opal material; exact stones cannot be confirmed visually
Clear faceted gemstone in a metal jewelry setting (likely imitation glass or cubic zirconia)
Unidentified transparent faceted stone; possibly cubic zirconia (ZrO₂) or glass
Colorless faceted gemstone, likely cubic zirconia
Synthetic cubic zirconia (ZrO₂), tentative; possibly diamond or synthetic moissanite
Polished blue stone, likely sodalite or dyed agate
Most consistent with sodalite (Na₈(Al₆Si₆O₂₄)Cl₂), though the image cannot confirm composition
Cubic Zirconia and Synthetic Ruby Jewelry
Cubic Zirconia (ZrO2) and Synthetic Corundum (Al2O3)
Likely silicon carbide (carborundum)
Synthetic silicon carbide (SiC), likely blue-green crystalline grit
Tumbled tiger’s-eye
Quartz variety, fibrous golden-brown SiO₂ (pseudomorphic quartz after crocidolite)
Polished pink corundum (likely treated ruby)
Corundum, aluminum oxide (Al₂O₃); ruby when red-to-pink from chromium
Blue cabochon, likely dyed or synthetic material
Undetermined; possibly dyed chalcedony (SiO₂), glass, or synthetic corundum
Dark blue polished stone pendant
Indeterminate; possibly sodalite, lapis lazuli, or blue slag/glass-like material
Cubic Zirconia (Simulated Diamond)
Zirconium dioxide (ZrO2)
Polished hematite
Hematite (Fe₂O₃), likely a tumbled iron-oxide specimen
Green faceted gemstone, likely emerald or synthetic emerald
Beryl, Be₃Al₂Si₆O₁₈, colored green by chromium and/or vanadium; identity cannot be confirmed visually
Red faceted gemstone, possibly synthetic ruby or red glass
Unidentified red gem; ruby is corundum (Al₂O₃), while glass is amorphous silicate
Opalite
Synthetic glass / Simulated opal
Opalite
Synthetic glass (Opalite simulant)