Slag (Industrial Byproduct)
Artificial silicate/iron byproduct
Mineral description (Anthropogenic material)
Category
Mineral Description (Anthropogenic Material)
Browse mineral description (anthropogenic material) specimens identified by the Rock Identifier community.
Learn about Mineral Description (Anthropogenic Material) in the encyclopedia
View all →
River Rock
N/A - Generic term for water-smoothed rock
sedimentary
River Rock
Mixed lithology clast
sedimentary
Rhyolitic jasper / brecciated jasper
Silica-rich volcanic rock, chiefly microcrystalline quartz (SiO₂), with iron-oxide and clay/mineral impurities
igneous
Polished leopard-skin jasper
Jasper, a microcrystalline quartz variety (SiO₂), with iron-oxide and other mineral impurities
sedimentary
Concrete
Anthropogenic Conglomerate
sedimentary
Note on Image Identification: Textile
N/A (Anthropogenic material)
not a rock
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
N/A - Image does not contain a rock or mineral
Anthropogenic textile material
Non-geological
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
sedimentary
Slag (Industrial Glass/Glassy Rock)
Anthropogenic Vitreous Material
igneous
Asphalt concrete
Anthropogenic conglomerate
sedimentary
Concrete rubble
Anthropogenic conglomerate
sedimentary
Asphalt Concrete
Bituminous Concrete / Asphaltic Composite
not a natural rock (man-made composite)
Smelter Slag
Anthropogenic Silicate Slag
igneous
Sea Glass
Man-made vitreous material (silica-based glass)
mineral
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
sedimentary
Concrete with Exposed Aggregate
Anthropogenic conglomerate (Concrete)
man-made rock (sedimentary analogue)
Slag (Industrial)
N/A (Anthropogenic Slag)
industrial by-product
Greenstone (likely metamorphosed basalt)
Metabasalt/greenstone; commonly composed of chlorite, actinolite, epidote, albite, and quartz
metamorphic
Slag (Industrial Byproduct)
Anthropogenic Vitreous Silicate material
igneous
Polished chalcedony (likely jasper or agate)
Microcrystalline quartz, SiO₂; chalcedony with iron-oxide inclusions
mineral
Slag
Anthropogenic silicate slag
igneous
Concrete Fragment
Artificial Conglomerate (Cement and Aggregate)
sedimentary
Limestone
Calcite-dominated limestone (CaCO₃), possibly impure or fossiliferous limestone
sedimentary
Fordite
Anthropogenic paint-rock
mineraloid (human-made geological specimen)
Terrazzo (Synthetic Composite Rock)
Cementitious or Epoxy Resin-bound Aggregates
Man-made metamorphic-style composite
Marine gastropod shell
Calcium-carbonate shell, primarily aragonite; species cannot be determined from the image
fossil
Black polished stone beads, likely black onyx or agate
Likely chalcedony (microcrystalline quartz, SiO₂); exact material cannot be confirmed from the image
gemstone
Asphalt Concrete
Bituminous Concrete (Anthropic Rock)
sedimentary
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Mineral-like Industrial Smelting Waste
Industrial Slag
Anthropogenic Vitreous Slag
igneous
Slag (Industrial By-product)
Anthropogenic Vitreous Silica/Iron Silicate
mineral
Asphalt (Bituminous Concrete)
Asphaltum / Bitumen-Aggregate Matrix
Technonatural composite (often containing sedimentary/igneous aggregate)
Cupronickel (on a 1981 Mexico 20 Pesos coin)
Copper-Nickel Alloy (Cu75Ni25)
mineral
Slag (Industrial Glassy Byproduct)
Anthropogenic silicate byproduct (Slag)
Mineral-like byproduct (often mistaken for igneous rock or meteorite)
Tumbled amber jasper
Jasper, microcrystalline quartz (SiO₂), colored by iron oxides and dark mineral inclusions
igneous
Slag
Anthropogenic Vitreous Silica/Iron oxides
mineral-like byproduct
Sandstone (likely Fossilized Wood or Concrete Simulacrum)
Arenite / Silicified Wood / Anthropogenic Concrete
sedimentary
Asphalt Chunk (with aggregate)
Bituminous concrete / Anthropogenic conglomerate
sedimentary (anthropogenic/man-made conglomerate)
Slag
Glassy silicate byproduct (anthropogenic material)
industrial byproduct
Iron Slag (Industrial Byproduct)
Anthropogenic pyrometallurgical residue
mineral