Man-made Crystal (Lead Glass)
Lead oxide-doped Silica Glass (approx. SiO2 + PbO)
Mineraloid/Synthetic Material
Category
Mineral Simulant (Synthetic Glass)
Browse mineral simulant (synthetic glass) specimens identified by the Rock Identifier community.
Learn about Mineral Simulant (Synthetic Glass) in the encyclopedia
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Diamond (Cut Gemstone)
Carbon (C)
gemstone
Note: Item is a Synthetic/Man-made Object
Titanium-coated Stainless Steel (Fe-Cr-Ni-Ti)
Non-geological
Sapphire
Corundum (Al2O3)
mineral
Emerald
Beryl (Be3Al2(SiO3)6) with trace Chromium/Vanadium
mineral
Bismuth crystal
Bismuth (Bi), commonly laboratory-grown
mineral
Diamond
Carbon (C)
mineral
Faceted clear gemstone pendant, likely a colorless diamond
Diamond (carbon, C); identification cannot be confirmed from the image
gemstone
Painted River Rock
Artificially Coated Sedimentary Rock
sedimentary
Blue chalcedony cabochon (probable)
Chalcedony, cryptocrystalline quartz; silicon dioxide (SiO₂)
gemstone
Ruby
Corundum (Al2O3 with Chromium traces)
mineral
Corundum (variety Ruby/Sapphire)
Aluminum Oxide (Al2O3)
mineral
Lapis Lazuli
Lazurite-dominated metamorphic rock ((Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)
metamorphic
Amethyst (likely synthetic or treated)
Purple quartz, SiO₂; color caused mainly by trace iron and irradiation
gemstone
Hematite bead bracelet
Hematite (iron(III) oxide, Fe₂O₃), likely polished specular hematite
mineral
Man-made Green Quartz (Lab-grown or Treated)
Silicon Dioxide (SiO2) with artificial coloration
mineral
Chalcanthite
Copper(II) sulfate pentahydrate (CuSO4·5H2O)
mineral
Blue-green gemstone ring, likely treated turquoise or synthetic/treated beryl
Indeterminate from image; possibilities include turquoise (CuAl6(PO4)4(OH)8·4H2O), apatite, or treated beryl
gemstone
Ametrine
SiO2 (Silicon Dioxide with iron impurities)
gemstone
Opal
Hydrated Amorphous Silica (SiO2·nH2O)
Mineral
Blue Sapphire
Corundum (Al2O3)
gemstone
Man-made Polished Porcelain Tile (Artificial Geologic Lookalike)
Fused Silicate Ceramic with Alumina (Synthetic Kaolinite derivative)
Synthetic (Ceramic)
Synthetic opal cabochon/bead
Opal-like hydrated amorphous silica; likely lab-created polymer–silica opal or Gilson synthetic opal (SiO₂·nH₂O)
gemstone
Synthetic Wolf Plush (Non-mineral)
Canis lupus similis (Prop material: Polyester & Synthetic fibers)
Synthetic material/Textile
Tumbled turquoise-like stone
Likely turquoise, hydrated copper aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O
mineral
Tumbled dalmatian jasper (likely)
Microcrystalline quartz/chalcedony with black amphibole or aegirine inclusions; commonly sold as “dalmatian jasper”
metamorphic
Hematite
Iron(III) oxide (Fe2O3)
mineral
Diamond
Diamond (C)
mineral
Opal
Hydrated amorphous form of silica (SiO2·nH2O)
mineral
Blue Dyed Agate
Cryptocrystalline Quartz (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Ruby
Corundum (Al2O3 with Chromium trace elements)
mineral
Unidentified polished dark gemstone cabochon
Possibly hematite, obsidian, jet, or dark agate; image insufficient for a definitive identification
gemstone
Note: The image provided is a fabric sock, not a geological specimen.
Polyester-Cotton Blend with Elastane
Synthetic/Natural Fiber (Non-Geological)
Dyed Quartzite
Metamorphosed Quartz (SiO2) with synthetic pigment
metamorphic
Synthetic Resin / Plastic Figurine
Synthetic Polymer (Copolymer of Polyethylene or Resin)
Mineraloid-like Synthetic Material
Botryoidal hematite (specular hematite)
Hematite, Fe₂O₃
mineral
Blue gemstone ring (likely sapphire)
Likely corundum, Al₂O₃; the dark, reflective appearance may also indicate a treated or synthetic stone.
gemstone
Lapis Lazuli (Tumbled Stone)
Na6Ca2(Al6Si6O24)(SO4,S,Cl)2 (predominantly Lazurite)
metamorphic
Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Build-A-Bear Plush (Non-Geological)
Polyester fibers (C10H8O4)n and Synthetic Polymers
Anthropogenic / Non-mineral
Ruby cabochons
Corundum, aluminum oxide (Al₂O₃), colored red by chiefly chromium
gemstone