Opalite
Synthetic Glass / Man-made Opal Simulant
gemstone
Category
Man Made Material (Simulated Mineral)
Browse man made material (simulated mineral) specimens identified by the Rock Identifier community.
Learn about Man Made Material (Simulated Mineral) in the encyclopedia
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Diamond / Clear Quartz / Glass paste
Carbon (Diamond) / Silicon Dioxide (Quartz)
gemstone
Goldstone
Aventurine glass (Synthetic glass with copper inclusions)
mineraloid / man-made glass
Goldstone
Man-made glass infused with copper crystals
mineral
Polished black stone, likely obsidian
Obsidian (volcanic glass; mostly silica-rich rhyolitic composition)
igneous
Concretion with Geode Cavity
Ferruginous Sandstone Concretion with Quartz Center
sedimentary
Goldstone (aventurine glass)
Man-made copper-bearing glass; not a natural mineral (commonly sold as blue/brown goldstone)
mineral
Green Aventurine
SiO2 (Silicon Dioxide with Fuchsite inclusions)
mineral
Aura Quartz
Silicon Dioxide (SiO2) with metallic vapor coating
mineral
Engineerged Quartz (Quartz Composite)
SiO2 (Silicon Dioxide) in a polymer resin matrix
mineral
Goldstone
Man-made glass with copper inclusions
gemstone
Tumbled milky quartz
Quartz — silicon dioxide (SiO₂), cryptocrystalline or microcrystalline variety possible
mineral
Goldstone (likely red/brown aventurine glass)
Man-made aventurine glass; copper-bearing silicate glass (not a natural mineral)
mineral
Slag Glass
SiO2 (Silicon Dioxide) with impurities
man-made glass
Opalite (Man-made Glass)
Fused glass (typically made of dolomite and metal opacifiers)
Man-made Material / Glass
Opalite
Synthetic Opalite Glass
mineraloid (man-made)
Aura Quartz (Titanium-coated Quartz)
Silicon Dioxide (SiO2) with metallic vapor coating
mineral
Ironstone Concretion (Pot Stone)
Siderite or Limonite Concretion (FeCO3 or FeO(OH)·nH2O)
sedimentary
Dragon's Breath (Mexican Opal Glass)
Artisan Foil Glass (SiO2 based)
mineraloid
Opalite
Synthetic Glass (typically Silica/Magnesium based with metal additives)
mineral
Silicon Carbide (Carborundum)
Silicon Carbide (SiC) / Moissanite (natural)
mineral
Cubic Zirconia
Cubic Zirconium Dioxide (ZrO2)
gemstone
Man-made Synthetic Material (Costume Faux Fur)
Synthetic Polymer (Polyester/Acrylic)
not a rock
Pink Cubic Zirconia (CZ)
Zirconium Dioxide (ZrO2)
mineral (synthetic)
Possible sea glass (naturally frosted glass), not a confirmed geological specimen
Man-made silicate glass; composition varies, commonly soda-lime glass
mineral
Ceramic or Polished Stone Heart (Anthropogenic Material)
Glazed Ceramic (Silicon Dioxide based coating on Alumina Silicate body) or Polished Limestone/Marble (Calcium Carbonate, CaCO3)
Synthetic/Anthropogenic Mineraloid
Aura Quartz Geodes (Lab-Altered)
Silicon Dioxide (SiO2) with Metallic Vapor Deposition
mineral
Dyed or synthetic turquoise-blue glass-like specimen
Likely man-made colored glass or resin; exact identification requires testing
mineral
Green Quartz / Chrysoprase / Sea Glass
Silicon Dioxide (SiO2)
mineral
Sandstone Concretion
Siliciclastic Concretion
sedimentary
Obsidian
Volcanic Glass
igneous
Aura Quartz (Titanium/Rainbow Quartz)
SiO2 (Silicon Dioxide) with metallic coating
mineral
Bismuth Crystal
Bismuth (Bi)
mineral
Aura Rose Quartz
SiO2 (Silicon Dioxide with Titanium/Gold coating)
mineral
Dyed Imperial Jasper (Sea Sediment Jasper)
Silicon Dioxide (SiO2) - Impure Quartz/Chalcedony
sedimentary
Crackle Agate / Dyed Quartz
SiO2 (Silicon Dioxide)
mineral
Slag Glass
Vitreous Silicate Residue
industrial byproduct (anthropogenic rock)
Green Sea Glass
Man-made silicate glass (weathered)
sedimentary
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2
mineral
Faceted clear gemstone, likely quartz or glass imitation
Most likely quartz (SiO₂); exact identification requires refractive-index and hardness tests
gemstone
Man-made Synthetic Material (Not a rock or mineral)
Polyester (Polyethylene terephthalate) / Faux Fur
Synthetic / Textile
Ferro-silicate Slag
Industrial Vitrified Slag (High-silica amorphous glass)
Mineral byproduct (Anthropogenic)