Chert (Arrowhead artifact)
Chert (Cryptocrystalline Silica, SiO2)
sedimentary
Category
Mineral Like (Anthropogenic)
Browse mineral like (anthropogenic) specimens identified by the Rock Identifier community.
Learn about Mineral Like (Anthropogenic) in the encyclopedia
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Slag
Anthropogenic Iron Silicate Glass
mineral
Grooved Maun Ball (Maul/Hammerstone-like Concretion)
Calcareous/Ferruginous Concretion in Sandstone Matrix
sedimentary
Nutting Stone / Cupstone (Sandstone or Quartzite)
Sedimentary rock with anthropogenic modification (cupule)
sedimentary
Concrete / Conglomerate (Man-made)
Artificial Conglomerate (Cementitious Composite)
sedimentary
Slag
Anthropogenic Vitrification Product / Silicate Slag
Anthropogenic (Man-made industrial byproduct)
Slag (Industrial Glass)
Anthropogenic Vitreous Slag (Post-industrial byproduct)
igneous
Sea Glass
Man-made silicate glass weathering product
sedimentary
Synthetic Costume Accessory (Non-Geological)
Polyester and Acrylic Fiber (Anthropogenic polymer)
Synthetic / Man-made textile
Granite Pebble
Granite (Phaneritic intrusive igneous rock comprising Quartz, Feldspar, and Mica)
igneous
Slag
Glassy silicate byproduct (anthropogenic material)
industrial byproduct
Concrete fragment with Aggregate
Anthropogenic Concrete with Calcarious and Siliceous Aggregate
sedimentary (anthropogenic/man-made)
Small dark mineral/rock fragment
Indeterminate; possibly magnetite-bearing basalt or iron-rich slag
mineral
Anthropogenic Heat Source (Electronic/Industrial Interface)
Thermal IR emission (Electronic infrastructure)
not a rock or mineral
Ferro-slag (Leland Blue/Slag Glass)
Anthropogenic Vitreous Silica (Industrial Slag)
igneous
Chert (Arrowhead/Projectile Point)
Cryptocrystalline Quartz (SiO2)
sedimentary
Mystic Topaz
Aluminum silicate fluoride hydroxide with titanium coating (Al2SiO4(F,OH)2)
mineral
Sea Glass
Man-made silicate glass
sedimentary
Crackled Quartz (Blue Dyed)
Silicon Dioxide (SiO2) with anthropogenic dye
mineral
Chert (Arrowhead Debitage or Flake)
Microcrystalline silica (SiO2)
sedimentary
Cobalt Blue Slag Glass
Amorphous Silicon Dioxide (anthropogenic) with Cobalt additives
mineraloid
Concrete Fragment
Hardened Portland cement and mineral aggregate
sedimentary (anthropogenic)
Slag (Industrial Glass Slag)
Amorphous Silica / Ferro-silicate Slag
mineraloid / anthropogenic
Cullet (Slag Glass)
Amorphous Silica (SiO2) with various metal oxide colorants
mineraloid / anthropogenic
Slag
Anthropogenic Vitreous Silicate / Ferro-silicate Slag
igneous
Slag
Ferrous slag (by-product of iron smelting)
Mineraloid / Anthropogenic
Concrete
Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)
sedimentary (anthropogenic / man-made)
Eroded Brick or Pumice-like Scoria
Vesicular Basalt / Scoria (Anthropogenic variant: Eroded Firebrick)
igneous
Ferro-silicate Slag
Industrial Vitrified Slag (High-silica amorphous glass)
Mineral byproduct (Anthropogenic)
Slag (Industrial Glassy Byproduct)
Ferro-silicate Slag
Anthropogenic / Non-Natural
Ferruginous Slag (Iron Smelting Byproduct)
Anthropogenic Vitreous Silicate (often containing Fayalite: Fe2SiO4)
Mineraloid/Anthropogenic (Technofossil)
Obsidian Arrowhead
Volcanic Glass (Primary composition: SiO2)
igneous
Slag (Industrial Byproduct)
Ferrous/Non-ferrous Silicate
igneous (artificial/anthropogenic)
Blue Slag Glass
Man-made Silicon Dioxide (Amorphous)
Anthropogenic (Man-made)
Slag (Anthropogenic Glass/Iron byproduct)
Ferro-silicate Slag
Anthropogenic (Man-made)
Metal Chain (Likely Steel or a Steel Alloy)
Steel (primarily iron and carbon); specific alloy unknown
Man-made Object (Metal/Alloy)
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)
Asphalt (Road Aggregate)
Bituminous Conglomerate / Asphalt Concrete
Anthropogenic (Man-made)
Green Slag Glass
Amorphous Silicon Dioxide (with metallic impurities)
Igneous (Anthropogenic)