Ferruginous Slag (Iron Smelting Byproduct)
Fused Silicate Scoria (Amorphous mixture of FeO, SiO2, and CaO)
Category
Browse antropogenic glass specimens identified by the Rock Identifier community.
Ferruginous Slag (Iron Smelting Byproduct)
Fused Silicate Scoria (Amorphous mixture of FeO, SiO2, and CaO)
Blue Slag Glass
Amorphous Silica (Byproduct of smelting)
Slag (Industrial Glass/Metal)
Ferrous slag or Glassy silicate byproduct
Blue Slag Glass
Amorphous Silica (Industrial byproduct)
Red Slag Glass (Cullet)
Amorphous Silicon Dioxide (SiO2) with metallic dopants
Ferrosilicon Slag (Industrial Vitrified Glass)
Vitreous Silicate Residue
Ferrochrome Slag
Industrial Glassy Slag (Fe-Cr alloy byproduct)
Cullet Glass (Industrial Slag Glass)
Amorphous Silica (SiO2) with metallic oxide impurities
Green Slag
Anthropogenic Silicate Glass
Terrazzo (Synthetic Composite Rock)
Cementitious or Epoxy Resin-bound Aggregates
Green Slag Glass
Cullet (Amorphous Silicon Dioxide with impurities)
Blue Sea Glass
Amorphous Silica (Anthropogenic glass)
Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)
Silicon Dioxide (SiO2) with metallic inclusions
Sea Glass (Frosted Glass)
Amorphous Silica (SiO2) with various additives
Green Glass Cullet / Recycled Glass
Amorphous Silicon Dioxide (SiO2) with various metal oxides
Chipped Glass/Plastic Fragment
Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Byproduct)
Sea Glass (Frosted Quartz/Glass)
Amorphous Silicon Dioxide (SiO2)
Snowflake Obsidian
Spherulitic Obsidian (Amorphous volcanic glass with Phenocrysts of Cristobalite)
Borosilicate Glass (Manufactured)
SiO2 + B2O3 (Silicon dioxide and Boron trioxide)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Muscovite Mica (Golden/Yellow variety)
KAl2(AlSi3O10)(F,OH)2
Sea Glass (Cobalt Blue)
Amorphous Silica (Glass with Cobalt additives)
Opalite (Synthetic Moonstone/Opal)
Synthetic Silica Glass
Glass
Amorphous Silicon Dioxide (SiO2)
Goldstone (Red)
Aventurine Glass (Cupriferous glass)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Muscovite Mica
Muscovite: KAl2(AlSi3O10)(OH)2
Sea Glass (White/Clear)
Amorphous Silica (Alkali-Lime-Silica Glass), SiO2 + Na2O + CaO
Cobalt Glass Slug (Man-made Glass)
Amorphous Silica with Cobalt Oxide (SiO2 + CoO)
Slag Glass (Cullet)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Cullet (Slag Glass)
Amorphous Silica (SiO2) with various metal oxide colorants
Cullet Glass (sometimes mistaken for Blue Obsidian or Slag)
Amorphous Silicon Dioxide (SiO2) with chemical additives (e.g., Cobalt for blue color)
Blue Sapphire (Synthetic or Man-made Glass Imitation)
Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic
Obsidian
Volcanic glass (Mainly SiO2)
Cullet (Slag Glass)
Amorphous Silica (Industrial byproduct)
Slag
Anthropogenic Iron Silicate Glass
Slag
Ferrous slag (by-product of iron smelting)
Muscovite Mica (with Schist)
Muscovite - KAl2(AlSi3O10)(OH)2
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(OH)2
Snowflake Obsidian
Volcanic glass with Phenocrysts (SiO2 with Cristobalite inclusions)