Opalite
Synthetic Opalised Glass
glass
Category
Not A Rock (Synthetic Material)
Browse not a rock (synthetic material) specimens identified by the Rock Identifier community.
Learn about Not A Rock (Synthetic Material) in the encyclopedia
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Coal (Anthracite/Bituminous)
Carbo fossilium (primarily Carbon)
sedimentary
Blue-beaded gemstone jewelry, likely lapis lazuli or dyed blue agate
Uncertain from the image; possible lazurite-bearing lapis lazuli (Na₃Ca(Si₃Al₃)O₁₂S) or blue chalcedony (SiO₂)
gemstone
Hematite
Iron(III) oxide (Fe2O3)
mineral
Silicon Carbide (Carborundum)
Moissanite (SiC)
mineral
Blue chalcedony cabochon (probable)
Chalcedony, cryptocrystalline quartz; silicon dioxide (SiO₂)
gemstone
Opalite
Synthetic Opalite Glass
mineraloid (man-made)
Painted River Rock
Anthropogenic-modified Siliciclastic Sedimentary Rock
Sedimentary
Rough White Zircon
Zircon (Zirconium Silicate, ZrSiO4)
mineral
Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Not a geological specimen
N/A (man-made object)
N/A
Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Anthracite Coal
Anthracite (Carbon-based organic sedimentary rock transitioned to metamorphic)
metamorphic
Opalite
Man-made Synthetic Glass (Silicon Dioxide with metal additives)
mineral
Dyed Quartzite
Metamorphosed Quartz (SiO2) with synthetic pigment
metamorphic
ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Synthetic Polymer (Synthetic Material)
Emerald
Beryl, Be₃Al₂(SiO₃)₆, colored green mainly by chromium and/or vanadium
gemstone
Note: Item is not a geological specimen
Polyester mesh and Ethylene-vinyl acetate (EVA) polymer
Synthetic / Anthropogenic Material
Polished red jasper
Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides
mineral
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Mineraloid (Man-made)
Goldstone
Avventurina (Man-made Glass with Copper inclusions)
mineral
Man-made Glass (Tumbled/Shaped)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Mineraloid (synthetic)
Diamond (or Diamond Simulant)
Carbon (C) if diamond, various if simulant
gemstone
Asphalt (Bituminous Concrete)
Bituminous mix / Anthropogenic conglomerate
man-made composite (lithified equivalent of sedimentary)
Cat's Eye Moonstone (Simulated/Synthetic or natural Cat's Eye Quartz/Glass)
There is no single scientific name. The appearance suggests either: Moonstone (feldspar group), Cat's Eye Quartz (SiO2), Apatite (Ca5(PO4)3(F,Cl,OH)), or most likely a synthetic material such as Fiber Optic Glass or 'Opalite' (a type of glass).
Mineral
Clear Quartz (Faceted) / White Sapphire / Goshenite
Silicon Dioxide (SiO2) / Aluminium Oxide (Al2O3)
gemstone
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
mineral
Cultured Marble (Synthetic)
Polymer-matrix composite (typically calcium carbonate in polyester resin)
Synthetic / Composite Material
Larimar
Pectolite (NaCa2Si3O8(OH))
Mineral variant / Gemstone
Painted River Rock
Polished fluvial clast with acrylic/synthetic pigment coating
Sedimentary or Metamorphic (base substrate)
Ruby (Corundum)
Aluminum oxide (Al2O3) with Chromium traces
mineral
Beach Pebble Quartzite / Chalcedony Pebble
Silicon Dioxide (SiO2)
metamorphic
Digital Multimeter (Synthetic Object)
Digital Multimeter (DMM)
not a rock
Blue Goldstone
Aventurine Glass
man-made glass
Ring with an Orange Inlay
N/A (Man-made object)
Man-made Object (Ring)
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
mineral
Colorless faceted gemstone, likely cubic zirconia
Cubic zirconia (synthetic zirconium dioxide, ZrO₂); possibly colorless quartz or laboratory diamond
gemstone
Blue Goldstone
Synthetic glass with cobalt and copper inclusions
man-made glass
Blue Goldstone
Man-made glass with cobalt and metal flecks
man-made glass
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
mineral
Coal (Bituminous or Anthracite)
Carbonaceous Sedimentary Rock
sedimentary
Blue Agate Geode (Dyed)
Cryptocrystalline Quartz (SiO2)
mineral