Opalite
Synthetic Opalite Glass
mineraloid (man-made)
Category
Man Made Glass (Not A Natural Rock Or Mineral)
Browse man made glass (not a natural rock or mineral) specimens identified by the Rock Identifier community.
Learn about Man Made Glass (Not A Natural Rock Or Mineral) in the encyclopedia
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Goldstone
Aventurine Glass (Man-made)
mineral
Asphalt (Road Aggregate)
Asphalt concrete / Bituminous mixture
anthropogenic sedimentary (technolith)
Unidentifiable Rock Fragment
Uncertain
Tumbled clear quartz (rock crystal)
Quartz, silicon dioxide (SiO₂)
mineral
Cobalt Blue Glass / Cullet Glass
Silicon dioxide (Amorphous man-made glass)
mineral
Opalite
Man-made Glass (SiO2 + additives)
mineraloid (synthetic)
Opalite
Synthetic Glass (Simulated Opal)
gemstone
Clear quartz tumbled stone
Quartz (silicon dioxide, SiO₂)
mineral
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Sedimentary (Synthetic)
Green sea glass (likely bottle glass)
Man-made soda–lime silicate glass; not a natural mineral
mineral
Red Slag Glass
Amorphous Silica (Industrial byproduct with metallic oxide dopants)
Mineraloid / Industrial Byproduct
Concrete
Anthropogenic Conglomerate
sedimentary
Opalite (Synthetic Opalized Glass)
Synthetic Silicon Dioxide (SiO2) glass
mineral
Decorative mosaic cross containing mixed rock and glass fragments
Polychrome aggregate; likely quartz, feldspar, marble, granite, and assorted colored glass
mineral
Milky quartz (likely rough quartz crystal)
Quartz, silicon dioxide (SiO₂)
mineral
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
Opalite
Synthetic Glass (SiO2 + impurities)
mineral
Opalite
Synthetic Opalized Glass / Man-made Glass
gemstone
Opalite
Synthetic Glass (Hydrated Silica Simulant)
mineral
Opalite Egg
Synthetic Glass (Simulated Opal)
mineral
Blue glassy gemstone-like specimen
Indeterminate; possibly dyed or treated turquoise, blue apatite, or man-made glass
gemstone
Opalite
Synthetic Silicon Dioxide (SiO2)
mineral
Rose Quartz and Cherry Quartz (Dyed Glass/Quartz)
Silicon Dioxide (SiO2) with inclusions/dye
gemstone
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Mineraloid (Man-made)
Goldstone (likely red/brown aventurine glass)
Man-made aventurine glass; copper-bearing silicate glass (not a natural mineral)
mineral
Opalite glass sphere (likely synthetic imitation)
Man-made opalescent glass; not natural opal
mineral
Dyed or synthetic turquoise-blue glass-like specimen
Likely man-made colored glass or resin; exact identification requires testing
mineral
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
sedimentary
Asphalt (Road Aggregate)
Bituminous conglomerate
sedimentary
Opalite
Synthetic Glass (Silica-based)
gemstone
Opalite
Synthetically produced glass (Silicon Dioxide with metallic inclusions)
Mineraloid (Man-made Glass)
Slag Glass
Vitreous Silicate Residue
industrial byproduct (anthropogenic rock)
Asphalt (Road Aggregate)
Bituminous Conglomerate / Asphalt Concrete
Anthropogenic (Man-made)
Opalite
Synthetic Glass / Man-made Opal Simulant
gemstone
Black tumbled stone, possibly obsidian
Obsidian (volcanic glass; predominantly SiO₂), identification uncertain from image
igneous
Opalite
Synthetic Opalised Glass
mineral
Opalite
Synthetic Opalised Glass
glass
Opalite
Man-made Opalized Glass (Synthetic Glass)
gemstone
Rock crystal quartz fragments
Quartz (silicon dioxide, SiO₂)
mineral
Sea Glass
Amorphous silicon dioxide (man-made glass weathered by nature)
mineral
Diamond (or Simulant)
Carbon (C) or relevant simulant formula (e.g., ZrO2 for Cubic Zirconia)
gemstone