Rock Identifier

Category

Anthropogenic (Man Made Material)

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

Learn about Anthropogenic (Man Made Material) in the encyclopedia

Opalite

Goldstone

Peat

Map Jasper

Blue Goldstone

Mandarin Garnet

Mandarin Garnet

Dunite

Andalusite

Zincite

Marl

Limonite

Diamond

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Silicon Carbide (Carborundum) (Silicon Carbide, SiC) — mineral

Silicon Carbide (Carborundum)

Silicon Carbide, SiC

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Chert (Chalcedony/Agate Pebble) (Cryptocrystalline Silica (SiO2)) — sedimentary

Chert (Chalcedony/Agate Pebble)

Cryptocrystalline Silica (SiO2)

Mosasaur Tooth Fossil (Mosasauridae (likely Prognathodon or Mosasaurus)) — fossil

Mosasaur Tooth Fossil

Mosasauridae (likely Prognathodon or Mosasaurus)

Tumbled Jasper and Tiger's Eye (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Tumbled Jasper and Tiger's Eye

Silicon Dioxide (SiO2) with iron oxide inclusions

Chert (Flint Nodules) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint Nodules)

Microcrystalline Quartz (SiO2)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide)

Chert (Microcrystalline silica (SiO2)) — sedimentary

Chert

Microcrystalline silica (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Abalone Shell (Nacre) (Aragonite (CaCO3) - Biogenic Mineral) — mineral

Abalone Shell (Nacre)

Aragonite (CaCO3) - Biogenic Mineral

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Jasper (Silicon dioxide, SiO2) — Mineral

Jasper

Silicon dioxide, SiO2

Limonite (Limonite (Hydrated iron oxide mixture, FeO(OH)·nH2O)) — mineral

Limonite

Limonite (Hydrated iron oxide mixture, FeO(OH)·nH2O)

Fossil Shark Tooth (Carcharodon sp. (likely Otodus or similar Lamniformes order)) — sedimentary

Fossil Shark Tooth

Carcharodon sp. (likely Otodus or similar Lamniformes order)

Flint (chert), likely brown flint (Microcrystalline quartz/chalcedony (SiO₂)) — sedimentary

Flint (chert), likely brown flint

Microcrystalline quartz/chalcedony (SiO₂)

Greenstone (Metamorphic mafic rock (greenschist facies)) — metamorphic

Greenstone

Metamorphic mafic rock (greenschist facies)

Iron Meteorite (Iron-Nickel Alloy (Kamacite and Taenite)) — meteorite

Iron Meteorite

Iron-Nickel Alloy (Kamacite and Taenite)

Amber (Fossilized tree resin (Amorphous)) — gemstone

Amber

Fossilized tree resin (Amorphous)

Chert (Jasper/Flint variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Silicon Dioxide (SiO2)

Chert (Jasper/Agate mix) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Agate mix)

Microcrystalline Quartz (SiO2)

Chert (River Pebble) (Silicon Dioxide (SiO2)) — sedimentary

Chert (River Pebble)

Silicon Dioxide (SiO2)

Flint / Chert (Silicon Dioxide (SiO2)) — sedimentary

Flint / Chert

Silicon Dioxide (SiO2)

Yellow Chert (Yellow Jasper) (Cryptocrystalline Quartz (SiO2) with Goethite/Limonite inclusions) — sedimentary

Yellow Chert (Yellow Jasper)

Cryptocrystalline Quartz (SiO2) with Goethite/Limonite inclusions

Chert (Flint) (Microcrystalline silica (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline silica (SiO2)

Chert (Flint) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Cryptocrystalline Quartz (SiO2)

Yellow Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Yellow Chert

Microcrystalline Quartz (SiO2)

Milky Quartz (Quartz (Silicon Dioxide - SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Chert (Flint) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert (variously known as Flint) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (variously known as Flint)

Microcrystalline quartz (SiO2)

Chert (variations include Flint/Jasper) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (variations include Flint/Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (White Chert / Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (White Chert / Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Rough Diamond (Diamond (Native Carbon, C)) — mineral

Rough Diamond

Diamond (Native Carbon, C)

Chert (varieties: Flint or Chalcedony) (Microcrystalline silica (SiO2)) — sedimentary

Chert (varieties: Flint or Chalcedony)

Microcrystalline silica (SiO2)

Chert (Flint variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint variety)

Microcrystalline Quartz (SiO2)

Sandstone (Arenite (SiO2 dominant)) — sedimentary

Sandstone

Arenite (SiO2 dominant)

Chert Nodules (Chert (SiO2)) — sedimentary

Chert Nodules

Chert (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Chert Breccia (Brecciated Chert (SiO2)) — sedimentary

Chert Breccia

Brecciated Chert (SiO2)

Chert (specifically Chalcedony or Flint variation) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Chalcedony or Flint variation)

Microcrystalline Quartz (SiO2)

Chert (River Pebble) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (River Pebble)

Microcrystalline Quartz (SiO2)

Amber (Succinite (fossilized resin)) — mineral

Amber

Succinite (fossilized resin)