Slag (Industrial Glassy Byproduct)
Ferro-silicate Slag
Anthropogenic / Non-Natural
Category
Mineral Like (Anthropogenic)
Browse mineral like (anthropogenic) specimens identified by the Rock Identifier community.
Learn about Mineral Like (Anthropogenic) in the encyclopedia
View all →
Metal Chain (Likely Steel or a Steel Alloy)
Steel (primarily iron and carbon); specific alloy unknown
Man-made Object (Metal/Alloy)
Concrete
Anthropogenic Sedimentary Conglomerate (Cement mixture: typically Ca2SiO4, Ca3SiO5, Ca3Al2O6)
sedimentary (artificial)
Conglomeratic gravel / polymictic breccia
Polymictic rudite, likely anthropogenic or beach/stream gravel; composition varies
sedimentary
Blue Slag Glass
Man-made Silicon Dioxide (Amorphous)
Anthropogenic (Man-made)
Asphalt (Bituminous pavement)
Bituminous concrete / Asphalt
Sedimentary (Anthropogenic)
Slag (Industrial Glass)
Artificial Vitreous Silicate
mineraloid (anthropogenic)
Asphalt (Road Aggregate)
Asphalt concrete / Bituminous mixture
anthropogenic sedimentary (technolith)
Slag Glass (Cullet)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Anthropogenic (Man-made)
Green Slag Glass
Amorphous Silicon Dioxide (with metallic impurities)
Igneous (Anthropogenic)
Asphalt (Road Aggregate)
Bituminous Conglomerate / Asphalt Concrete
Anthropogenic (Man-made)
Slag
Ferrous Slag (Amorphous calcium-magnesium-aluminum silicates)
igneous (artificial/anthropogenic)
Fired Clay Brick (Anthropic Rock substitute)
Anthropogenic polycrystalline ceramic (predominantly Mullite and Quartz: Al6Si2O13 + SiO2)
metamorphic (man-made / anthropic)
Asphalt Concrete (Bituminous Pavement)
Aggregates in Bitumen Matrix
Technogenic / Anthropogenic Pavement Material
Iron-rich vesicular rock, possibly slag or weathered basalt
Identification uncertain; likely ferruginous basalt/ironstone, with possible anthropogenic iron slag
igneous
South Korean 100 Won Coin (Cupronickel)
Cupronickel Alloy (75% Cu, 25% Ni)
mineral-based alloy (anthropogenic)
Slag
Metallurgical by-product
Anthropogenic (Man-made material)
Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Mineral description (Anthropogenic material)
Slag Glass
Vitreous Silicate Residue
industrial byproduct (anthropogenic rock)
Efflorescence (on Clay Brick)
Crystalline salt deposits (typically Sodium Sulfate Na2SO4, Calcium Carbonate CaCO3, or Potassium Sulfate K2SO4)
Mineral precipitate (anthropogenic context)
Ferrous Slag
Fused calcium-iron silicates (Industrial Slag)
Anthropogenic/Industrial byproduct
Ferro-Manganese Slag
Vitreous Silicate Slag
Anthropogenic (Industrial byproduct)
Iron Slag
Ferrous Slag (Industrial Byproduct)
mineraloid (anthropogenic byproduct)
Slag Glass
Amorphous Silica / Glass Slag
industrial byproduct (anthropogenic rock-like material)
Iron Slag
Iron/Steel Slag (Ferrosilicate Glass)
industrial byproduct (anthropogenic material)
Concrete with Aggregate
Composite construction material; primary matrix is Calcium Silicate Hydrate (C-S-H)
anthropogenic (human-made) sedimentary-like material
Cobalt Blue Sea Glass
Amorphous Silica Glass (SiO2 + CoO)
mineraloid / anthropogenic material
Note: Item is not a geological specimen
Polyester mesh and Ethylene-vinyl acetate (EVA) polymer
Synthetic / Anthropogenic Material
Iron Slag
Vitreous glassy waste (Fe-Si-Al-Ca compounds)
Mineral byproduct (anthropogenic / techno-fossil)
Synthetic Zinc/Polycarbonate Composite (Bey-specimen)
Zinc Alloy (Zamak 3) with Polycarbonate (C15H16O2)n Overlay
Anthropogenic Mineral Mimic
Mixed beach-stone and tumbled-glass collection
Predominantly uncertain rocks (likely basalt, granite, and quartz-bearing stones) with anthropogenic glass; one possible banded agate or jasper
mineral
Build-A-Bear Plush (Non-Geological)
Polyester fibers (C10H8O4)n and Synthetic Polymers
Anthropogenic / Non-mineral
Ferrous Slag (Iron Smelting By-product)
Fused Siliceous Slag
Anthropogenic Material (Man-made Rock)
Iron Slag
Ferrous Slag (Silicate/Oxide mixture)
industrial byproduct (anthropogenic)
Sea Glass (Teal/Turquoise)
Amorphous Silica (SiO2) with trace metal oxides
Anthropogenic (Man-made material processed by nature)
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Unopened Geode
Geode (containing various mineralization like Quartz SiO2)
sedimentary
Fluorite
Calcium fluoride (CaF2)
mineral
Bauxite
Bauxite (Al2O3·2H2O mixed with iron oxides)
sedimentary
Pegmatite
Pegmatite (felsic intrusive igneous rock)
igneous
Snowflake Obsidian
Volcanic Glass with Spherulite inclusions (mainly Cristobalite)
igneous
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral