Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
mineral
Category
Anthropogenic (Man Made Artifact)
Browse anthropogenic (man made artifact) specimens identified by the Rock Identifier community.
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Titanium Coated Kyanite (Aura Kyanite)
Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating
metamorphic
Likely tumbled or cut quartz/chalcedony fragment
Silicon dioxide (SiO₂), probably microcrystalline quartz or quartz
mineral
Chert
Microcrystalline quartz (SiO2)
sedimentary
Blue glass-like tumbled specimen
Most likely cobalt-blue slag glass or manufactured glass; not confidently identifiable as a natural mineral from the image
mineral
Crescent Pebble
Weathered Quartzite or Sandstone Fragment
sedimentary
Opalite (Man-made Glass)
Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)
Synthetic Mineral Simulant / Glass
Asphalt concrete
Anthropogenic conglomerate
sedimentary
Bismuth
Bismuth (Bi)
mineral
Slag
Metallurgical Slag
igneous
Pink Quartz / Sea Glass
Silicon Dioxide (SiO2)
mineral
Obsidian (Blue)
Volcanic Glass (SiO2)
igneous
Blue Cracked Quartz (Dyed Fire Crackle Quartz)
Silicon Dioxide (SiO2) with synthetic dye
mineral
Citrine Quartz
Citrine (Silicon Dioxide, SiO2)
mineral
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Clear quartz sphere
Quartz (silicon dioxide, SiO₂)
mineral
Cubic Zirconia (Diamond Simulant)
Zirconium Dioxide (ZrO2)
gemstone
Opalite
Synthetic Opalised Glass
mineral
Opalite
Synthetic Silicon Dioxide (SiO2)
mineral
Rainbow Hematite (Titanium Coated)
Iron(III) oxide (Fe2O3) with Titanium/Metal Oxide coating
mineral
Mystic Topaz
Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating
mineral
Opalite
Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)
mineral
Sandstone (with concrete/human-made layer)
Clastic Sedimentary Rock (primarily Quartz/Feldspar grains)
sedimentary
Opalite
Synthetic Opalized Glass / Man-made Glass
gemstone
Opalite
Synthetic Glass / Man-made Opal Simulant
gemstone
Goldstone
Avventurina (Man-made Glass with Copper inclusions)
mineral
Opalite
Man-made Glass (Synthetic Opalized Glass)
gemstone
Opalite
Man-made glass (traditionally simulated Opal)
mineral
Opalite
Man-made Synthetic Glass (Silicon Dioxide with metal additives)
mineral
Opalite (Man-made Glass)
Synthetic Opalised Glass
mineral
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Cherry Quartz with Rose Quartz
Crystalline Quartz (SiO2) with glass-based synthetic components
gemstone
Blue Goldstone
Aventurine Glass
Man-made glass (often grouped with minerals in lapidary)
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite/Goethite inclusions
mineral
Polished brown jasper (likely brecciated or orbicular jasper)
Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions
gemstone
Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral
Goldstone (Red)
Aventurine Glass (Cupriferous glass)
Synthetic Glass (Man-made)
Diamond / Clear Quartz / Glass paste
Carbon (Diamond) / Silicon Dioxide (Quartz)
gemstone
Opalite
Synthetic Glass (Simulated Moonstone/Opal)
gemstone
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
mineral
Goldstone
Aventurine glass (Synthetic glass with copper inclusions)
mineraloid / man-made glass