Ferruginous Slag (Iron Smelting Byproduct)
Fused Silicate Scoria (Amorphous mixture of FeO, SiO2, and CaO)
Antropogenic Glass / Mineraloid
Category
Antropogenic Glass
Browse antropogenic glass specimens identified by the Rock Identifier community.
Learn about Antropogenic Glass in the encyclopedia
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Blue Slag Glass
Amorphous Silica (Byproduct of smelting)
Antropogenic (Man-made)
Slag (Industrial Glass/Metal)
Ferrous slag or Glassy silicate byproduct
Antropogenic rock (Man-made)
Blue Slag Glass
Amorphous Silica (Industrial byproduct)
Antropogenic (Man-made glass byproduct)
Red Slag Glass (Cullet)
Amorphous Silicon Dioxide (SiO2) with metallic dopants
Antropogenic (Man-made material)
Ferrosilicon Slag (Industrial Vitrified Glass)
Vitreous Silicate Residue
Antropogenic (Man-made industrial byproduct)
Ferrochrome Slag
Industrial Glassy Slag (Fe-Cr alloy byproduct)
Antropogenic (Man-made industrial byproduct)
Slag Glass / Industrial Slag
Anthropogenic Glass
man-made glass / industrial byproduct
Green Sea Glass
Man-made vitreous material (silica glass)
gemstone
Sea Glass
Man-made silicate glass
mineral
Green Slag
Anthropogenic Silicate Glass
Mineraloid (Industrial byproduct)
Cullet Glass (Industrial Slag Glass)
Amorphous Silica (SiO2) with metallic oxide impurities
Man-made byproduct (often mistaken for Obsidian or Emerald)
Blue Obsidian (Cullet Glass)
Silicon Dioxide (Amorphous Glass)
mineral
Sea Glass
Man-made vitreous material (silica-based glass)
mineral
Sea Glass
Anthropogenic Silicate Glass
mineral
Sea Glass
Man-made silicate glass
mineral
Blue Obsidian (Cullet Glass)
Man-made silicate glass
mineral
Blue Glass or Slag Glass
Amorphous Silica (Anthropogenic Glass)
mineral
Blue Sea Glass
Amorphous Silica (Anthropogenic glass)
not a rock (man-made origin)
Green sea glass (likely)
Anthropogenic glass, not a mineral; composition commonly soda–lime silicate glass
mineral
Sea Glass
Man-made silicate glass
mineral
Opalite
Synthetic glass / Opalized glass
gemstone
Opalite
Synthetic glass / Opaque silicious glass
gemstone
Green sea glass (likely bottle glass)
Human-processed soda–lime silicate glass; not a natural mineral or rock
mineral
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial byproduct)
mineraloid
Terrazzo (Synthetic Composite Rock)
Cementitious or Epoxy Resin-bound Aggregates
Man-made metamorphic-style composite
Green glassy slag or manufactured glass bead
Noncrystalline silicate glass; likely industrial glass/slag, not a true mineral
mineral
Green sea glass or green glass-like tumbled material
Amorphous silicate glass; likely anthropogenic soda-lime glass, not a natural mineral
mineral
Green Slag Glass
Cullet (Amorphous Silicon Dioxide with impurities)
Man-made rock-like material
Likely clear quartz fragment
Quartz (SiO₂)
mineral
Sea Glass
Man-made silicate glass weathering product
sedimentary
Cullet Glass (Slag)
Amorphous Silicon Dioxide (Man-made)
Mineraloid
Opalite
Man-made Opalized Glass (Synthetic Glass)
gemstone
Blue tumbled glass-like specimen; likely blue slag glass
Likely man-made glass (silicate glass), not a natural mineral; exact material cannot be confirmed from the image
mineral
Blue Goldstone
Man-made glass infused with copper crystals
mineral
Slag
Anthropogenic Iron Silicate Glass
mineral
Blue sea glass or blue glassy mineral fragment
Uncertain; likely man-made soda-lime glass, not a natural mineral
mineral
Sea Glass
Man-made silicate glass
sedimentary
Chipped Glass/Plastic Fragment
Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic
Man-made material (simulant/artifact)
Sea glass (likely green bottle glass)
Human-made soda-lime silicate glass; not a natural mineral or geological rock
mineral
Sea glass (likely pale blue glass)
Human-made silicate glass, likely soda-lime glass; not a natural mineral or rock
mineral
Sea Glass
Amorphous Silicon Dioxide (Man-made glass weathered by nature)
mineral