Slag Glass / Industrial Slag
Anthropogenic Glass
man-made glass / industrial byproduct
Category
Man Made Glass
Browse man made glass specimens identified by the Rock Identifier community.
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Probable amber fragment
Amber (fossilized plant resin; chiefly amorphous organic resin, commonly dominated by succinite)
gemstone
Green Glass Cullet / Recycled Glass
Amorphous Silicon Dioxide (SiO2) with various metal oxides
Man-made Glass (Not a natural rock or mineral)
Blue Goldstone
Aventurine Glass
Man-made glass (often grouped with minerals in lapidary)
Goldstone (Brown/Gold variety)
Aventurine Glass (SiO2 with Copper inclusions)
Synthetic/Man-made glass (often mistaken for a mineral)
Opalite
Synthesized glass / Silicon dioxide glass
gemstone
Opalite
Synthetic glass / Simulated opal
gemstone
N/A - Non-Geological Item
not a rock/mineral
Blue Obsidian (Cullet Glass)
Man-made silicate glass
mineral
Opalite
Synthetic glass / Opaque silicious glass
gemstone
Synthetic Resin Charm (Seal Shape)
Polymer Resin with plastic glitter / Polyethylene terephthalate glitters
Synthetic material (Not a rock or mineral)
Opalite
Synthetic glass (SiO2 + impurities)
mineral
Goldstone
Aventurine Glass (Man-made)
mineral
Sea Glass
Man-made silicate glass
sedimentary
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
sedimentary
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
mineral
Sea Glass
Man-made silicate glass
sedimentary
Sea Glass
Man-made silicate glass
sedimentary
Sea Glass
Man-made silicate glass
gemstone
Obsidian
Volcanic Glass
igneous
Opalite
Synthetic Opalite Glass / Opalized Glass
gemstone
Rose Quartz and Cherry Quartz (Dyed Glass/Quartz)
Silicon Dioxide (SiO2) with inclusions/dye
gemstone
Blue crystal pendant (likely blue glass or synthetic crystal)
Not identifiable from the image; possibly synthetic quartz or glass, rather than a natural mineral
gemstone
Sea Glass
Man-made vitreous material
gemstone
Slag Glass
Amorphous Silicate (Man-made)
industrial byproduct
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Byproduct)
mineraloid
Quartz pebble (Quartztite fragment)
Silicon Dioxide (SiO2)
mineral
Opalite (Synthetic Moonstone/Opal)
Synthetic Silica Glass
mineraloid (synthetic)
Cullet Glass (Slag)
Amorphous Silicon Dioxide (Man-made)
Mineraloid
Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
Faceted clear gemstone in a gold-colored setting
Unidentified transparent faceted stone; possibly quartz, glass, or another colorless gem
gemstone
Cullet (Slag Glass)
Amorphous Silica (SiO2) with various metal oxide colorants
mineraloid / anthropogenic
Opalite
Synthetic Glass (Simulated Opal)
gemstone
Green Sea Glass
Man-made silicate glass (weathered)
sedimentary
Blue Slag Glass
Man-made Silicon Dioxide (Amorphous)
Anthropogenic (Man-made)
Opalite
Synthetic Glass (Silica-based)
gemstone
Opaline Glass (Opalite)
Synthetic Silicon Dioxide Glass
Mineraloid (Man-made)
Opalite Egg
Synthetic Glass (Simulated Opal)
mineral