Rock Identifier

Category

Anthropogenic Sedimentary (Man Made)

Browse anthropogenic sedimentary (man made) specimens identified by the Rock Identifier community.

Learn about Anthropogenic Sedimentary (Man Made) in the encyclopedia

Opalite

Map Jasper

Conglomerate

Goldstone

Quartzite Sandstone

Quartzite Sandstone

Breccia

Blue Goldstone

Ironstone

Limestone

Claystone

Sandstone

Mandarin Garnet

Mandarin Garnet

Iron Slag (Anthropogenic Ferro-silicate) — mineral

Iron Slag

Anthropogenic Ferro-silicate

Iron Slag (Anthropogenic Iron Silicate) — industrial byproduct

Iron Slag

Anthropogenic Iron Silicate

industrial byproduct

N/A - Image does not contain a rock or mineral (Anthropogenic textile material) — Non-geological

N/A - Image does not contain a rock or mineral

Anthropogenic textile material

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

Chert (Arrowhead)

Microcrystalline Quartz (SiO2)

Chert Arrowhead (Projectile Point) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Arrowhead (Projectile Point)

Microcrystalline Quartz (SiO2)

Chert Arrowhead (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Arrowhead

Microcrystalline Quartz (SiO2)

Chert Arrowhead (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert Arrowhead

Cryptocrystalline Quartz (SiO2)

Red-orange cabochon, likely carnelian or glass imitation (Carnelian: chalcedony (microcrystalline SiO₂), commonly iron-colored) — gemstone

Red-orange cabochon, likely carnelian or glass imitation

Carnelian: chalcedony (microcrystalline SiO₂), commonly iron-colored

Polished black pebble, possibly obsidian (Volcanic glass (obsidian), likely; identification is tentative from the image) — igneous

Polished black pebble, possibly obsidian

Volcanic glass (obsidian), likely; identification is tentative from the image

Tumbled milky quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Tumbled milky quartz

Quartz (silicon dioxide, SiO₂)

Titanium Amethyst Geode (Silicon Dioxide (SiO2) with Titanium/Metal Vapor Deposition Layer) — mineral

Titanium Amethyst Geode

Silicon Dioxide (SiO2) with Titanium/Metal Vapor Deposition Layer

Chert (Arrowhead Fragment) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Arrowhead Fragment)

Silicon Dioxide (SiO2)

Green Glass (often marketed as 'Obsidian' or 'Green Quartz') (Amorphous Silica (SiO2) with copper or chromium additives) — Mineraloid (Man-made)

Green Glass (often marketed as 'Obsidian' or 'Green Quartz')

Amorphous Silica (SiO2) with copper or chromium additives

Mineraloid (Man-made)

Blue-green cabochon, likely chalcedony or treated glass imitation (Cryptocrystalline quartz (chalcedony/possibly chrysoprase); identification uncertain from image) — gemstone

Blue-green cabochon, likely chalcedony or treated glass imitation

Cryptocrystalline quartz (chalcedony/possibly chrysoprase); identification uncertain from image

Blue Obsidian (Volcanic Glass (SiO2 with inclusions)) — igneous

Blue Obsidian

Volcanic Glass (SiO2 with inclusions)

Green glass sphere/marble (Soda-lime glass (primarily SiO2, Na2O, CaO)) — Man-made object (Simulant)

Green glass sphere/marble

Soda-lime glass (primarily SiO2, Na2O, CaO)

Man-made object (Simulant)

Green sea glass (likely bottle glass) (Man-made soda–lime silicate glass; not a natural mineral) — mineral

Green sea glass (likely bottle glass)

Man-made soda–lime silicate glass; not a natural mineral

Sea Glass (Amorphous silicon dioxide (Man-made glass weathered by nature)) — mineral

Sea Glass

Amorphous silicon dioxide (Man-made glass weathered by nature)

Slag (Industrial Glass/Byproduct) (Anthropogenic Vitreous Silicate) — igneous (anthropogenic)

Slag (Industrial Glass/Byproduct)

Anthropogenic Vitreous Silicate

igneous (anthropogenic)

Iron Slag (Anthropogenic pyrometallurgical byproduct) — igneous

Iron Slag

Anthropogenic pyrometallurgical byproduct

Iron Slag (Anthropogenic pyrometallurgical residue) — industrial byproduct

Iron Slag

Anthropogenic pyrometallurgical residue

industrial byproduct

Slag (Industrial) (N/A (Anthropogenic Slag)) — industrial by-product

Slag (Industrial)

N/A (Anthropogenic Slag)

industrial by-product

Blue glassy tumbled stone, likely blue chalcedony or slag glass (Chalcedony (microcrystalline SiO₂), possibly man-made blue glass) — mineral

Blue glassy tumbled stone, likely blue chalcedony or slag glass

Chalcedony (microcrystalline SiO₂), possibly man-made blue glass

Green sea glass (likely bottle glass) (Man-made soda-lime silicate glass; not a natural mineral) — mineral

Green sea glass (likely bottle glass)

Man-made soda-lime silicate glass; not a natural mineral

Milky quartz (rough fragment) (Quartz, silicon dioxide (SiO₂)) — mineral

Milky quartz (rough fragment)

Quartz, silicon dioxide (SiO₂)

Rock crystal (clear quartz), possibly cloudy quartz (Quartz, silicon dioxide (SiO₂)) — mineral

Rock crystal (clear quartz), possibly cloudy quartz

Quartz, silicon dioxide (SiO₂)

Goldstone (Red) (Aventurine Glass (SiO2 + Cu)) — Synthetic Glass (Often categorized as a simulated mineral)

Goldstone (Red)

Aventurine Glass (SiO2 + Cu)

Synthetic Glass (Often categorized as a simulated mineral)

Blue Crackle Quartz (Dyed Quarzite) (Silicon Dioxide (SiO2) with artificial dye) — Metamorphic (modified)

Blue Crackle Quartz (Dyed Quarzite)

Silicon Dioxide (SiO2) with artificial dye

Metamorphic (modified)

Dyed Blue Agate (Dragon Vein Agate) (Silicon Dioxide (SiO2) with artificial cobalt/organic dyes) — mineral

Dyed Blue Agate (Dragon Vein Agate)

Silicon Dioxide (SiO2) with artificial cobalt/organic dyes

Diamond (Native Carbon (C)) — mineral

Diamond

Native Carbon (C)

Dyed Aura Quartz (Silicon Dioxide (SiO2) with metallic coating) — mineral

Dyed Aura Quartz

Silicon Dioxide (SiO2) with metallic coating

Cullet Glass (sometimes mistaken for Blue Obsidian or Slag) (Amorphous Silicon Dioxide (SiO2) with chemical additives (e.g., Cobalt for blue color)) — mineraloid / industrial byproduct

Cullet Glass (sometimes mistaken for Blue Obsidian or Slag)

Amorphous Silicon Dioxide (SiO2) with chemical additives (e.g., Cobalt for blue color)

mineraloid / industrial byproduct

Granite with Cupules / Bedrock Mortars (Granite (felsic intrusive plutonic rock)) — igneous

Granite with Cupules / Bedrock Mortars

Granite (felsic intrusive plutonic rock)

Chert (Arrowhead/Tool variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Arrowhead/Tool variety)

Microcrystalline Quartz (SiO2)

Chert Arrowhead (Lithic Artifact) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Arrowhead (Lithic Artifact)

Microcrystalline Quartz (SiO2)

Blue chalcedony (likely dyed or treated) (Microcrystalline quartz, SiO₂ (chalcedony)) — gemstone

Blue chalcedony (likely dyed or treated)

Microcrystalline quartz, SiO₂ (chalcedony)

Blue Obsidian (Cullet Glass) (Silicon Dioxide (Amorphous Glass)) — mineral

Blue Obsidian (Cullet Glass)

Silicon Dioxide (Amorphous Glass)

Opalite (Synthetic glass (SiO2 + metal additions)) — mineraloid

Opalite

Synthetic glass (SiO2 + metal additions)

Tumbled milky chalcedony (likely common opalite-like quartz) (Chalcedony, microcrystalline SiO₂; possibly pale common opal, hydrated SiO₂·nH₂O) — mineral

Tumbled milky chalcedony (likely common opalite-like quartz)

Chalcedony, microcrystalline SiO₂; possibly pale common opal, hydrated SiO₂·nH₂O

Raw quartz crystal (Quartz (silicon dioxide, SiO₂), likely milky or included quartz) — mineral

Raw quartz crystal

Quartz (silicon dioxide, SiO₂), likely milky or included quartz

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

Chert (Arrowhead/Projectile Point)

Chert (Cryptocrystalline Quartz, SiO2)

Carborundum (Silicon Carbide (SiC)) — mineral

Carborundum

Silicon Carbide (SiC)