Anthracite Coal
Anthracite (Carbon-based organic sedimentary rock transitioned to metamorphic)
Category
Browse synthetic material (not a rock or mineral) specimens identified by the Rock Identifier community.
Anthracite Coal
Anthracite (Carbon-based organic sedimentary rock transitioned to metamorphic)
Diamond
Native Carbon (C)
Gold (Elemental Metal)
Gold (Au)
Smoky Quartz
Silicon Dioxide (SiO2)
Blue Goldstone
Aventurine Glass (SiO2 with Co and metallic inclusions)
Anthropogenic Heat Source (Electronic/Industrial Interface)
Thermal IR emission (Electronic infrastructure)
ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Nephrite Jade
Nephrite
Opal
Hydrated Amorphous Silica (SiO2·nH2O)
Ring with an Orange Inlay
N/A (Man-made object)
Smoky Quartz
Silicon Dioxide (SiO2)
Ruby
Corundum (Al2O3) with Chromium traces
Blue Sapphire
Corundum (Al2O3)
Lapis Lazuli
Lazurite-dominant rock, (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2
Rough Emerald (Beryl)
Emerald (Be3Al2(SiO3)6 with Cr/V impurities)
Opalite
Synthetic Opalised Glass
Pink Sapphire
Corundum (Al2O3 with trace Chromium and Iron)
Blue Sapphire (likely costume glass imitation)
Corundum (Al2O3) with iron/titanium impurities
Opalite (Man-made Glass)
Synthetic Opalised Glass
Cultured Marble (Synthetic)
Polymer-matrix composite (typically calcium carbonate in polyester resin)
Blue Goldstone
Aventurine Glass (SiO2 with Cobalt/Copper inclusions)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Note: No specimen visible
Blue Goldstone
Auraventurine (Synthetic glass with cobalt and copper inclusions)
Moonstone (bead form)
Potassium Aluminum Silicate (KAlSi3O8) - a variety of Orthoclase Feldspar
Cubic Zirconia
Zirconium dioxide (ZrO2)
Parti Sapphire
Corundum (Al2O3)
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
Pink Cubic Zirconia (CZ)
Zirconium Dioxide (ZrO2)
Garden Quartz (Lodalite)
Silicon Dioxide with various mineral inclusions (SiO2)
Goldstone
Aventurine glass (Synthetic glass with copper inclusions)
Opalite (Man-made Glass)
Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite, Sodalite, Calcite, and Pyrite)
Cubic Zirconia (Faceted)
Zirconium dioxide (ZrO2)
White Opal
Hydrated Amorphous Silica (SiO2·nH2O)
Opalite
Synthetic Opalised Glass
Lapis Lazuli
Lazurite-dominated metamorphic rock ((Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)
Man-made Jewelry (Metal and Glass/Plastic)
Synthetic Alloy and Amorphous Solid (SiO2/Polymer)
Shale with Vein Infillings
Shale (a fine-grained clastic sedimentary rock). The veins could be Calcite (CaCO3), Quartz (SiO2), or other minerals.
Smoky Quartz
Silicon Dioxide (SiO2)
Cubic Zirconia (CZ) Jewelry
Zirconium dioxide (ZrO2)
Opalite
Synthetic Glass (Simulated Opal)