Pink Dyed Agate
Silicon Dioxide (SiO2) with synthetic pigment
mineral
Category
Synthetic Material (Not A Rock Or Mineral)
Browse synthetic material (not a rock or mineral) specimens identified by the Rock Identifier community.
Learn about Synthetic Material (Not A Rock Or Mineral) in the encyclopedia
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Cubic Zirconia (Faceted)
Zirconium dioxide (ZrO2)
gemstone
Tumbled amethyst
Amethyst, purple quartz (SiO₂), colored by trace iron and irradiation
gemstone
Red synthetic corundum (ruby-colored lab-grown sapphire)
Corundum, aluminum oxide (Al₂O₃), likely synthetic and chromium-colored
gemstone
Beach Pebble Quartzite / Chalcedony Pebble
Silicon Dioxide (SiO2)
metamorphic
Blue opalite (often sold as synthetic opal)
Opalite glass; amorphous hydrated silica if natural opal (SiO₂·nH₂O)
gemstone
Blue Goldstone
Aventurine Glass
man-made glass
Ruby (Pink to Red Corundum)
Al2O3 (Corundum with Chromium impurities)
mineral
Rose Quartz and Cherry Quartz (Dyed Glass/Quartz)
Silicon Dioxide (SiO2) with inclusions/dye
gemstone
Cubic Zirconia (Set in Jewelry)
Zirconium Dioxide (ZrO2)
gemstone
Diamond
Diamond (C)
mineral
Larimar
Pectolite (NaCa2Si3O8(OH))
Mineral variant / Gemstone
Blue Agate Geode (Dyed)
Cryptocrystalline Quartz (SiO2)
mineral
Dyed Agate Geode
Silicon Dioxide (SiO2) with artificial pigment
mineral
Ruby (Raw Corundum)
Al2O3 (Aluminum Oxide)
mineral
Diamond (or Cut Gemstone / Cubic Zirconia)
Carbon (C)
gemstone
Ruby
Corundum (Al2O3 with Chromium trace impurities)
mineral
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Mineraloid (Man-made)
Synthetic Faux Fur Fursuit
Polyacrylonitrile / Polyester (Synthetic Textile)
not a rock (synthetic material/costume)
White seed-bead gemstone strand, likely freshwater pearl or shell pearl
Pearl: nacreous calcium carbonate, chiefly aragonite (CaCO₃) in conchiolin; identification uncertain from image
gemstone
Dalmatian Stone
Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock
igneous
Dyed Quartzite
Metamorphosed Quartz (SiO2) with synthetic pigment
metamorphic
Asphalt (Bituminous Concrete)
Bituminous Concrete / Pavement
man-made (synthetic rock)
Goldstone (Red)
Aventurine Glass
Man-made material (Simulated Mineral)
Opalite (Synthetic Opalized Glass)
Synthetic Silicon Dioxide (SiO2) glass
mineral
Man-made Polished Porcelain Tile (Artificial Geologic Lookalike)
Fused Silicate Ceramic with Alumina (Synthetic Kaolinite derivative)
Synthetic (Ceramic)
Silicon
Element Si
mineral
Diamond (or Diamond Simulant)
Carbon (C) if diamond, various if simulant
gemstone
Peridot gemstone pendant
Olivine, gem-quality forsteritic olivine (approximately (Mg,Fe)₂SiO₄)
gemstone
Lapis Lazuli
Lazurite-rich metamorphic rock (approx. Na6Ca2(Al6Si6O24)(S,SO4,Cl)1,2)
metamorphic
Dalmatian Stone
Dalmatian Stone (Felsic Igneous Rock)
igneous
Painted River Rock
Polished fluvial clast with acrylic/synthetic pigment coating
Sedimentary or Metamorphic (base substrate)
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Anthropogenic Heat Source (Electronic/Industrial Interface)
Thermal IR emission (Electronic infrastructure)
not a rock or mineral
Blue chalcedony cabochon (probable)
Chalcedony, cryptocrystalline quartz; silicon dioxide (SiO₂)
gemstone
Staurolite (Fairy Stone)
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Green cabochon gemstone, likely aventurine or dyed chalcedony
Indeterminate from image; possible quartz variety (SiO₂), including aventurine quartz or chalcedony
gemstone
Blue Goldstone
Synthetic Aventurescent Glass (Cobalt-doped soda-lime glass)
man-made glass
Coal (Anthracite/Bituminous)
Carbo fossilium (primarily Carbon)
sedimentary
Man-made Glass (Tumbled/Shaped)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Mineraloid (synthetic)
Blue Sapphire
Corundum (Al2O3)
mineral
Coal (Bituminous or Anthracite)
Carbonaceous Sedimentary Rock
sedimentary