Opalite
Synthetic Glass (Simulated Opal)
mineral
Category
Sedimentary (Man Made)
Browse sedimentary (man made) specimens identified by the Rock Identifier community.
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Opalite (a synthetic glass)
Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant
Mineral Simulant (Synthetic Glass)
Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral
Opalite
Synthetic Opalized Glass (SiO2 + additives)
mineraloid (man-made)
Sea Glass (specifically Frosted White)
Amorphous Silica (substance: Sodium-calcium silicate glass)
Mineraloid (Anthropogenic/Man-made rock)
Carborundum (Silicon Carbide)
Silicon carbide (SiC)
mineral
Aqua Aura Quartz
Titanium/Gold-coated Silicon Dioxide (SiO2)
mineral
Cultured Marble (Synthetic)
Polymer-matrix composite (typically calcium carbonate in polyester resin)
Synthetic / Composite Material
Opalite
Synthetic Fluorescent Glass (SiO2 + impurities)
mineraloid (synthetic)
Carborundum (Silicon Carbide)
Silicon Carbide (SiC)
mineral
Opalite
Synthetically produced glass (Silicon Dioxide with metallic inclusions)
Mineraloid (Man-made Glass)
Aura Quartz (Pink/Rose Aura Quartz)
Silicon Dioxide (SiO2) bonded with Platinum and/or Silver
mineral
Green Slag
Anthropogenic Silicate Glass
Mineraloid (Industrial byproduct)
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial byproduct)
mineraloid
Ferrous Slag
Iron/Steel Slag (Complex Calcium-Alumino-Silicates)
Anthropgenic (Industrial Byproduct)
Aura Quartz (Rainbow Quartz)
Silicon Dioxide (SiO2) with metallic vapor coatings
mineral
Blue Goldstone
Man-made glass with crystalline copper/cobalt inclusions
mineral
Opalite
Man-made Opalized Glass (Synthetic Glass)
gemstone
Beads (likely glass or man-made material)
N/A (artificial material)
Man-made material, not a natural rock or mineral specimen
Chert (Arrowhead/Artifact Fragment)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Cherry Quartz
SiO2 (Silicon Dioxide with iron-rich inclusions/dye)
mineral
Aventurine Quartz
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Slag
Metallurgical by-product
Anthropogenic (Man-made material)
Moldavite
Tektite (Impact Glass), ~80% SiO2 + Al2O3
tektite
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
mineral
Pyrite in Quartz (Drill Core)
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions
igneous/metamorphic (hydrothermal)
White quartz pebble
Quartz (SiO₂), likely milky quartz
mineral
Opalite
Synthetic opalescent glass
glass
Aqua Aura Quartz
Silicon Dioxide (SiO2) bonded with Gold (Au)
mineral (treated)
Glass
Amorphous Silicon Dioxide (SiO2)
mineraloid
Goldstone
Aventurine glass
mineral (man-made glass)
Opalite
Synthetic Opalised Glass
glass
Opalite
Synthetic Opalite Glass
mineraloid (man-made)
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
mineral
Asphalt (Road Aggregate)
Bituminous Conglomerate / Asphalt Concrete
Anthropogenic (Man-made)
Bismuth
Bismuth (Bi)
mineral
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
Clear quartz sphere
Quartz (silicon dioxide, SiO₂)
mineral
Opalite (Man-made Glass)
Synthetic Silicon Dioxide Glass (SiO2 + metal oxides)
Synthetic Mineral Simulant / Glass
Citrine Quartz
Citrine (Silicon Dioxide, SiO2)
mineral