Rock Identifier

Category

Mineral Like (Anthropogenic)

Browse mineral like (anthropogenic) specimens identified by the Rock Identifier community.

Learn about Mineral Like (Anthropogenic) in the encyclopedia

Calc-Silicate Rock

Calc-Silicate Rock

Garden Quartz

Ribbon Jasper

Sagenite Agate

Leopard Skin Jasper

Leopard Skin Jasper

Flower Jasper

Feather Jasper

Dendritic Opal

Starburst Agate

Plume Agate

Feather Agate

Moss Opal

Concrete fragment with Aggregate (Anthropogenic Concrete with Calcarious and Siliceous Aggregate) — sedimentary (anthropogenic/man-made)

Concrete fragment with Aggregate

Anthropogenic Concrete with Calcarious and Siliceous Aggregate

sedimentary (anthropogenic/man-made)

Chert (Arrowhead or Flake) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Arrowhead or Flake)

Microcrystalline quartz (SiO2)

Slag (Glassy silicate byproduct (anthropogenic material)) — industrial byproduct

Slag

Glassy silicate byproduct (anthropogenic material)

industrial byproduct

Slag (Anthropogenic Iron Silicate Glass) — mineral

Slag

Anthropogenic Iron Silicate Glass

Possible tektite or iron-rich slag-like natural specimen (Uncertain; possibly natural glass (tektite) or magnetite-rich rock) — mineral

Possible tektite or iron-rich slag-like natural specimen

Uncertain; possibly natural glass (tektite) or magnetite-rich rock

Asphalt Concrete (Bituminous Concrete (Anthropic Rock)) — sedimentary

Asphalt Concrete

Bituminous Concrete (Anthropic Rock)

Chert (often called Flint) (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert (often called Flint)

Chert (Microcrystalline Quartz, SiO2)

Chert (Arrowhead/Projectile Point) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Arrowhead/Projectile Point)

Microcrystalline quartz (SiO2)

Chert (Arrowhead Shard) (Microcrystalline silica (SiO2)) — sedimentary

Chert (Arrowhead Shard)

Microcrystalline silica (SiO2)

Chert (Arrowheads) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Arrowheads)

Microcrystalline Quartz (SiO2)

Chert (Arrowhead artifact) (Chert (Cryptocrystalline Silica, SiO2)) — sedimentary

Chert (Arrowhead artifact)

Chert (Cryptocrystalline Silica, SiO2)

Chert Arrowhead (Lithic Artifact) (Chert (Cryptocrystalline Quartz, SiO2)) — sedimentary

Chert Arrowhead (Lithic Artifact)

Chert (Cryptocrystalline Quartz, SiO2)

Ferro-slag (Leland Blue/Slag Glass) (Anthropogenic Vitreous Silica (Industrial Slag)) — igneous

Ferro-slag (Leland Blue/Slag Glass)

Anthropogenic Vitreous Silica (Industrial Slag)

Grooved Maun Ball (Maul/Hammerstone-like Concretion) (Calcareous/Ferruginous Concretion in Sandstone Matrix) — sedimentary

Grooved Maun Ball (Maul/Hammerstone-like Concretion)

Calcareous/Ferruginous Concretion in Sandstone Matrix

Chert (Yellow Jasper) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow Jasper)

Cryptocrystalline Quartz (SiO2)

Sea Glass (Man-made silicate glass weathering product) — sedimentary

Sea Glass

Man-made silicate glass weathering product

Concrete / Conglomerate (Man-made) (Artificial Conglomerate (Cementitious Composite)) — sedimentary

Concrete / Conglomerate (Man-made)

Artificial Conglomerate (Cementitious Composite)

Asphalt (Bituminous Concrete) (Asphaltum / Bitumen-Aggregate Matrix) — Technonatural composite (often containing sedimentary/igneous aggregate)

Asphalt (Bituminous Concrete)

Asphaltum / Bitumen-Aggregate Matrix

Technonatural composite (often containing sedimentary/igneous aggregate)

Cobalt Blue Slag Glass (Amorphous Silicon Dioxide (anthropogenic) with Cobalt additives) — mineraloid

Cobalt Blue Slag Glass

Amorphous Silicon Dioxide (anthropogenic) with Cobalt additives

Granite Pebble (Granite (Phaneritic intrusive igneous rock comprising Quartz, Feldspar, and Mica)) — igneous

Granite Pebble

Granite (Phaneritic intrusive igneous rock comprising Quartz, Feldspar, and Mica)

Crackled Quartz (Blue Dyed) (Silicon Dioxide (SiO2) with anthropogenic dye) — mineral

Crackled Quartz (Blue Dyed)

Silicon Dioxide (SiO2) with anthropogenic dye

Chert (Arrowhead/Projectile Point) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Arrowhead/Projectile Point)

Cryptocrystalline Quartz (SiO2)

Small dark mineral/rock fragment (Indeterminate; possibly magnetite-bearing basalt or iron-rich slag) — mineral

Small dark mineral/rock fragment

Indeterminate; possibly magnetite-bearing basalt or iron-rich slag

Anthropogenic Heat Source (Electronic/Industrial Interface) (Thermal IR emission (Electronic infrastructure)) — not a rock or mineral

Anthropogenic Heat Source (Electronic/Industrial Interface)

Thermal IR emission (Electronic infrastructure)

not a rock or mineral

Slag (Anthropogenic Vitreous Silicate / Ferro-silicate Slag) — igneous

Slag

Anthropogenic Vitreous Silicate / Ferro-silicate Slag

Sea Glass (Man-made silicate glass) — sedimentary

Sea Glass

Man-made silicate glass

Chert (Arrowhead Debitage or Flake) (Microcrystalline silica (SiO2)) — sedimentary

Chert (Arrowhead Debitage or Flake)

Microcrystalline silica (SiO2)

Concrete Fragment (Hardened Portland cement and mineral aggregate) — sedimentary (anthropogenic)

Concrete Fragment

Hardened Portland cement and mineral aggregate

sedimentary (anthropogenic)

Mystic Topaz (Aluminum silicate fluoride hydroxide with titanium coating (Al2SiO4(F,OH)2)) — mineral

Mystic Topaz

Aluminum silicate fluoride hydroxide with titanium coating (Al2SiO4(F,OH)2)

Eroded Brick or Pumice-like Scoria (Vesicular Basalt / Scoria (Anthropogenic variant: Eroded Firebrick)) — igneous

Eroded Brick or Pumice-like Scoria

Vesicular Basalt / Scoria (Anthropogenic variant: Eroded Firebrick)

Slag (Industrial Glass Slag) (Amorphous Silica / Ferro-silicate Slag) — mineraloid / anthropogenic

Slag (Industrial Glass Slag)

Amorphous Silica / Ferro-silicate Slag

mineraloid / anthropogenic

Concrete (Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)) — sedimentary (anthropogenic / man-made)

Concrete

Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)

sedimentary (anthropogenic / man-made)

Cullet (Slag Glass) (Amorphous Silica (SiO2) with various metal oxide colorants) — mineraloid / anthropogenic

Cullet (Slag Glass)

Amorphous Silica (SiO2) with various metal oxide colorants

mineraloid / anthropogenic

Ferruginous Slag (Iron Smelting Byproduct) (Anthropogenic Vitreous Silicate (often containing Fayalite: Fe2SiO4)) — Mineraloid/Anthropogenic (Technofossil)

Ferruginous Slag (Iron Smelting Byproduct)

Anthropogenic Vitreous Silicate (often containing Fayalite: Fe2SiO4)

Mineraloid/Anthropogenic (Technofossil)

Slag (Ferrous slag (by-product of iron smelting)) — Mineraloid / Anthropogenic

Slag

Ferrous slag (by-product of iron smelting)

Mineraloid / Anthropogenic

Blue slag glass / industrial smelter slag (Man-made iron-rich silicate slag; composition variable, commonly Fe–Ca–Mg–Al silicates with glassy phases) — mineral

Blue slag glass / industrial smelter slag

Man-made iron-rich silicate slag; composition variable, commonly Fe–Ca–Mg–Al silicates with glassy phases

Slag (Anthropogenic Glass/Iron byproduct) (Ferro-silicate Slag) — Anthropogenic (Man-made)

Slag (Anthropogenic Glass/Iron byproduct)

Ferro-silicate Slag

Anthropogenic (Man-made)

Iron-rich slag or weathered ironstone fragments (Probably hematite–goethite material; possibly industrial iron slag (Fe₂O₃/FeO(OH))) — mineral

Iron-rich slag or weathered ironstone fragments

Probably hematite–goethite material; possibly industrial iron slag (Fe₂O₃/FeO(OH))

Possible basaltic volcanic rock or iron-rich meteorite (Likely basalt (plagioclase–pyroxene rock); meteorite status cannot be confirmed visually) — igneous

Possible basaltic volcanic rock or iron-rich meteorite

Likely basalt (plagioclase–pyroxene rock); meteorite status cannot be confirmed visually

Ferro-silicate Slag (Industrial Vitrified Slag (High-silica amorphous glass)) — Mineral byproduct (Anthropogenic)

Ferro-silicate Slag

Industrial Vitrified Slag (High-silica amorphous glass)

Mineral byproduct (Anthropogenic)

Obsidian Arrowhead (Volcanic Glass (Primary composition: SiO2)) — igneous

Obsidian Arrowhead

Volcanic Glass (Primary composition: SiO2)

Slag (Industrial Byproduct) (Ferrous/Non-ferrous Silicate) — igneous (artificial/anthropogenic)

Slag (Industrial Byproduct)

Ferrous/Non-ferrous Silicate

igneous (artificial/anthropogenic)