Sea Glass (Frosted Glass)
Amorphous Silica (SiO2) with various metal oxide impurities
Man-made material (Anthro-lithic product)
Category
Man Made Material (Anthro Lithic Product)
Browse man made material (anthro lithic product) specimens identified by the Rock Identifier community.
Learn about Man Made Material (Anthro Lithic Product) in the encyclopedia
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N/A - Non-Geological Item
not a rock/mineral
Chert Arrowhead (Projectile Point)
Microcrystalline Quartz (Chert or Flint)
sedimentary
Slag
Metallurgical by-product
Anthropogenic (Man-made material)
Terrazzo (Man-made Composite)
Cementitious or Resin-bound Lithic Composite
sedimentary (artificial)
Asphalt (Bituminous Concrete)
Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)
not a rock (anthropogenic material/technofossil)
Asphalt Concrete
Bituminous Concrete
sedimentary (artificial)
Opalite
Man-made glass (traditionally simulated Opal)
mineral
Asphalt (Bituminous Pavement)
Bituminous mix (Aggregates with Bitumen binder)
sedimentary
Hematite
Iron(III) oxide (Fe2O3)
mineral
Concrete
Hydrated Portland Cement Aggregate Composite
Anthropogenic Sedimentary (Man-made)
Concrete Fragment
Hardened Portland Cement Composite
Anthropogenic (Man-made material mimicking sedimentary rock)
Asphalt Chunk (Bituminous Concrete)
Aggregated Bitumen / Artificial Breccia
sedimentary
Cultured Marble (Synthetic)
Polymer-matrix composite (typically calcium carbonate in polyester resin)
Synthetic / Composite Material
Unidentifiable Rock Fragment
Uncertain
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Mineral-like Industrial Smelting Waste
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Non-geological / Synthetic
Opalite
Synthetic Glass (Amorphized Silicon Dioxide)
mineraloid
Carborundum (Silicon Carbide)
Silicon carbide (SiC)
mineral
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Byproduct)
mineraloid
Slag Glass
SiO2 (Silicon Dioxide) with impurities
man-made glass
Cullet Glass / Slag Glass
Amorphous silica glass
man-made glass / industrial byproduct
Smelter Slag
Anthropogenic Silicate Slag
igneous
Opalite
Man-made opalized glass
mineral
Sea Glass
Man-made silicate glass
gemstone
Blue Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral
Ferro-slag (Leland Blue/Slag Glass)
Anthropogenic Vitreous Silica (Industrial Slag)
igneous
Engineerged Quartz (Quartz Composite)
SiO2 (Silicon Dioxide) in a polymer resin matrix
mineral
Acrylic or Resin (Synthetic Imitation)
Polymethyl Methacrylate (PMMA) or Polyepoxide
Synthetic/Man-made Polymer
Goldstone (Brown)
Aventurine Glass (Silicon Dioxide infused with Copper crystals)
mineraloid (man-made glass)
Opalite
Synthetic Opalite Glass / Opalized Glass
gemstone
Titanium Coated Kyanite (Aura Kyanite)
Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating
metamorphic
Zinc Alloy (Silver-plated)
Zinc Alloy Casting (Zn-Al-Mg-Cu)
mineral (refined metal)
Opalite
Synthetic glass / Opalized glass
gemstone
Diamond (or Simulant)
Carbon (C) or relevant simulant formula (e.g., ZrO2 for Cubic Zirconia)
gemstone
Sea Glass
Amorphous silicon dioxide (man-made glass weathered by nature)
mineral
Chakra Stone Tower (Composite Multi-Mineral)
Crystalline Silicon Dioxide composite (SiO2) with various inclusions
mineral
Opalite
Synthetic Opalized Glass (SiO2 + additives)
mineraloid (man-made)
Concrete Fragment
Artificial Conglomerate (Cement and Aggregate)
sedimentary
Green Sea Glass
Man-made silicate glass (weathered)
sedimentary
Sea Glass
Man-made silicate glass weathering product
sedimentary
Slag Glass
Anthropogenic Amorphous Silicon Dioxide
mineral