Dyed Alum or Dyed Quartz (Ornamental Crystal)
Silicon Dioxide (SiO2) or Potassium Alum [KAl(SO4)2·12H2O]
Category
Browse mineraloid (synthetic) specimens identified by the Rock Identifier community.
Dyed Alum or Dyed Quartz (Ornamental Crystal)
Silicon Dioxide (SiO2) or Potassium Alum [KAl(SO4)2·12H2O]
Ruby
Corundum (Al2O3)
Likely blue glass or synthetic gemstone jewelry
Uncertain; possibly synthetic spinel, cubic zirconia, or blue glass
Lapis Lazuli
Lazurite-dominated metamorphic rock ((Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)
Cubic Zirconia
Cubic Zirconium Dioxide (ZrO2)
Crackled Quartz (Dyed)
Silicon Dioxide (SiO2)
Obsidian
Volcanic Glass (70% or more SiO2)
Obsidian
Volcanic glass (SiO2 - Silicon Dioxide with impurities)
Amber in Matrix
Succinite (Carbon-based organic polymer)
Obsidian
Obsidian (Amorphous volcanic glass, predominantly SiO2)
Obsidian
Volcanic glass
Obsidian
Volcanic glass (SiO2 - Silicon Dioxide with impurities)
Limonite (Iron Ore)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
Cubic Zirconia
Zirconium dioxide (ZrO2)
Lapis Lazuli (Tumbled Stone)
Na6Ca2(Al6Si6O24)(SO4,S,Cl)2 (predominantly Lazurite)
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
Digital Multimeter (Synthetic Object)
Digital Multimeter (DMM)
Corundum (Pink Sapphire / Ruby)
Al2O3 (Aluminum Oxide)
Likely obsidian (possibly tektite or slag glass)
Volcanic glass; primarily SiO₂, noncrystalline
Black Obsidian
Obsidian (Volcanic Glass, SiO2 + impurity)
Limonite (Iron Ore)
Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)
Obsidian
Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)
Jet
Lignite (Anthracite-grade compact coal)
Obsidian
Volcanic Glass (SiO2)
Opalite
Synthetic Glass (SiO2 + impurities)
Turquoise
CuAl6(PO4)4(OH)8·4H2O
Artificial Rock Face (Faux Rock)
Glass Fiber Reinforced Concrete (GFRC)
Precious Opal
Hydrated Silica (SiO2·nH2O)
Limonite/Ironstone
Limonite (FeO(OH)·nH2O)
Clear Quartz (faceted) / Diamond Simulant
Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)
Diamond (or Clear Quartz / Cubic Zirconia)
Carbon (C) or Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)
Zirconia (Ceramic) & Ion-X Glass
Zirconium Dioxide (ZrO2) and Ion-strengthened Aluminosilicate Glass
Pearl
Calcium Carbonate (Aragonite) with Conchiolin; formula: CaCO3
Green Opal
Hydrated Silica (SiO2·nH2O)
Opalite
Synthetic glass / Opalized glass
Opalite
Synthetic Glass (Simulated Opal)
Opalite Egg
Synthetic Glass (Simulated Opal)
Opalite
Synthetic Glass (Simulated Opal)
Diamond (or Diamond Simulant)
C (Carbon) or synthetic equivalent
Opalite
Synthetic Silicon Dioxide (SiO2)
Synthetic Faux Fur Fursuit
Polyacrylonitrile / Polyester (Synthetic Textile)
Opalite
Synthetic Glass (Simulated Opal)