Slag Glass
Vitreous Silicate Residue
industrial byproduct (anthropogenic rock)
Category
Anthropogenic Specimen (Man Made)
Browse anthropogenic specimen (man made) specimens identified by the Rock Identifier community.
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Rainbow Hematite Ring
Iron(III) oxide (Fe2O3) with thin-film coating
mineral
Crackled Quartz (Blue Dyed)
Silicon Dioxide (SiO2) with anthropogenic dye
mineral
Concretion with Geode Cavity
Ferruginous Sandstone Concretion with Quartz Center
sedimentary
Slag
Metallurgical by-product
Anthropogenic (Man-made material)
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
sedimentary
Green Obsidian Sphere (man-made glass)
Vitreous Silica with Chromium/Iron additives
mineralogical simulant
Titanium Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral
Cubic Zirconia
Cubic Zirconium Dioxide (ZrO2)
gemstone
Man-made Polished Porcelain Tile (Artificial Geologic Lookalike)
Fused Silicate Ceramic with Alumina (Synthetic Kaolinite derivative)
Synthetic (Ceramic)
Asphalt / Road Aggregate
Bituminous Conglomerate (synthetic)
sedimentary
Crackle Agate / Dyed Quartz
SiO2 (Silicon Dioxide)
mineral
Synthetic Resin / Plastic Figurine
Synthetic Polymer (Copolymer of Polyethylene or Resin)
Mineraloid-like Synthetic Material
Aura Quartz (Titanium/Rainbow Quartz)
SiO2 (Silicon Dioxide) with metallic coating
mineral
Slag
Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)
igneous (artificial/anthropogenic)
Acrylic or Resin (Synthetic Imitation)
Polymethyl Methacrylate (PMMA) or Polyepoxide
Synthetic/Man-made Polymer
Aura Quartz
Silicon Dioxide (SiO2) with metallic vapor coating
mineral
Opalite
Man-made Glass (Synthetic Opalized Glass)
mineral
Cullet Glass / Slag Glass
Amorphous silica glass
man-made glass / industrial byproduct
Unidentifiable Rock Fragment
Uncertain
Tumbled milky quartz pebble
Quartz (silicon dioxide, SiO₂), opaque-to-translucent milky variety
mineral
Slag Glass (Cullet)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Anthropogenic (Man-made)
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2
mineral
Zinc Alloy (Silver-plated)
Zinc Alloy Casting (Zn-Al-Mg-Cu)
mineral (refined metal)
Sea Glass (specifically Frosted White)
Amorphous Silica (substance: Sodium-calcium silicate glass)
Mineraloid (Anthropogenic/Man-made rock)
Blue Goldstone
Aventurine Glass
man-made glass
Ocean Jasper Mushroom
Orbicular Jasper (Silicon Dioxide, SiO2 mixed with various impurities)
mineral
Ferro-silicate Slag
Industrial Vitrified Slag (High-silica amorphous glass)
Mineral byproduct (Anthropogenic)
Pyrite in Quartz (Drill Core)
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions
igneous/metamorphic (hydrothermal)
Moldavite
Tektite (Impact Glass), ~80% SiO2 + Al2O3
tektite
Opalite
Synthetic glass / Opalized glass
gemstone
Diamond (or Simulant)
Carbon (C) or relevant simulant formula (e.g., ZrO2 for Cubic Zirconia)
gemstone
Industrial Slag
Anthropogenic Vitreous Slag
igneous
Iron Slag
Iron/Steel Slag (Ferrosilicate Glass)
industrial byproduct (anthropogenic material)
ABS Plastic (Acrylonitrile Butadiene Styrene)
(C8H8)x·(C4H6)y·(C3H3N)z
Synthetic Polymer (Synthetic Material)
Chert Arrowhead
Cryptocrystalline Quartz (SiO2)
sedimentary
Carborundum (Silicon Carbide)
Silicon carbide (SiC)
mineral
Eroded Brick or Pumice-like Scoria
Vesicular Basalt / Scoria (Anthropogenic variant: Eroded Firebrick)
igneous
Conglomerate
Conglomerate (Sedimentary rock containing rounded clasts)
sedimentary
Blue Sea Glass
Amorphous Silica (Anthropogenic glass)
not a rock (man-made origin)
Crescent Pebble
Weathered Quartzite or Sandstone Fragment
sedimentary
Chert Arrowhead
Microcrystalline Quartz (SiO2)
sedimentary