Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Category
Browse mineral simulant (synthetic glass) specimens identified by the Rock Identifier community.
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Opalite glass sphere (likely synthetic imitation)
Man-made opalescent glass; not natural opal
Cubic Zirconia
Cubic Zirconia (Zirconium Dioxide, ZrO2)
Tumbled opalite (likely synthetic glass)
Opalite; typically man-made opalescent soda-lime glass, not a recognized mineral species
Red faceted gemstone, likely synthetic ruby
Corundum (Al₂O₃), chromium-colored; possibly flame-fusion synthetic ruby
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.
Serpentinite
Serpentine group minerals (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Cubic Zirconia
Zirconium dioxide (ZrO2)
Serpentine
Antigorite/Lizardite/Chrysotile group, Mg3Si2O5(OH)4
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Opalite
Synthetically produced glass (Silicon Dioxide with metallic inclusions)
Blue-and-white opalite sphere
Opalite (commercial synthetic or glass-based imitation; not true opal), typically silica glass or synthetic opalescent material
Pink-red faceted gemstone, possibly synthetic corundum or spinel
Uncertain; possible ruby (corundum, Al₂O₃) or red spinel (MgAl₂O₄)
Faceted Diamond or Cubic Zirconia
Carbon (C) for Diamond; Zirconium dioxide (ZrO2) for CZ
Diamond (or Diamond Simulant)
Carbon (C)
Strawberry Quartz and Rose Quartz
Silicon Dioxide (SiO2) with inclusions
Rainbow Hematite / Magnetic Hematite
Iron oxide (Fe2O3) - often synthetic/coated for beads
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
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.
Opalite
Man-made opalescent glass
Smoky Quartz
Silicon Dioxide (SiO2)
Blue slag glass / industrial glass fragment
Artificial silicate glass, composition variable; likely copper- or cobalt-colored furnace slag
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Colorless faceted gemstone, likely a small diamond or imitation
Undetermined; diamond is carbon (C), but visual appearance alone cannot distinguish it from cubic zirconia or glass
Polished purple gemstone, likely amethyst
Amethyst: purple quartz, silicon dioxide (SiO₂)
Red gemstone ring, likely garnet or synthetic ruby
Possibly almandine garnet (Fe₃Al₂(SiO₄)₃) or corundum/ruby (Al₂O₃); image alone cannot distinguish
Moonstone cabochon ring
Adularia moonstone, potassium feldspar (orthoclase, KAlSi₃O₈), possibly imitation or another white translucent gemstone
Opalite
Synthetic Glass (typically Silica/Magnesium based with metal additives)
Ruby (Raw Corundum)
Al2O3 (Aluminum Oxide)
Ruby ring
Corundum (Al₂O₃), red variety colored mainly by chromium
Black polished stone beads, likely black onyx or agate
Likely chalcedony (microcrystalline quartz, SiO₂); exact material cannot be confirmed from the image
Black cabochon pendant, likely onyx or black glass
Most likely black chalcedony (microcrystalline quartz, SiO₂); the surrounding stones may be cubic zirconia or glass
Green faceted gemstone, likely synthetic glass or chrome-dyed stone
Undetermined; possibilities include green tourmaline, synthetic emerald, glass, or dyed quartz
Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)
Silicon Dioxide (SiO2) with metallic inclusions
Pink quartz (likely rose quartz)
Quartz, silicon dioxide (SiO₂), likely rose quartz; possibly lab-created or treated
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
Green cut gemstone, likely synthetic emerald or glass imitation
Undetermined; natural emerald is beryl (Be₃Al₂Si₆O₁₈), while the vivid, very uniform appearance may indicate imitation material
Blue aventurine quartz (likely)
Quartz, silicon dioxide (SiO₂), probably blue aventurine variety
Opalite
Man-made Opalized Glass (Synthetic Glass)
Opalite
Man-made opalescent glass (SiO2 + metal oxides)
Blue Sapphire
Corundum (Al2O3)
Serpentine
Antigorite/Chrysotile/Lizardite mixture (Mg,Fe)3Si2O5(OH)4