Rock Identifier

Category

Not A Natural Rock (Man Made Composite)

Browse not a natural rock (man made composite) specimens identified by the Rock Identifier community.

Learn about Not A Natural Rock (Man Made Composite) in the encyclopedia

Asphalt Rock

Rock Gypsum

Talc-carbonate Rock

Talc-carbonate Rock

Opalite

Chalk

Goldstone

Anorthosite

Albitite

Dunite

Gondite

Limestone

Coquina

Snowflake Obsidian (Volcanic glass with Cristobalite inclusions (70–75% SiO2)) — igneous

Snowflake Obsidian

Volcanic glass with Cristobalite inclusions (70–75% SiO2)

Shale (or Mudstone) (Laminose Mudrock (composition: clay minerals, quartz, and mica flakes)) — sedimentary

Shale (or Mudstone)

Laminose Mudrock (composition: clay minerals, quartz, and mica flakes)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Granodiorite with Quartz Veining (Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins) — igneous

Granodiorite with Quartz Veining

Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins

Granite Pebble (Felsic intrusive igneous rock) — igneous

Granite Pebble

Felsic intrusive igneous rock

Rough Diamond (Diamond (Pure Carbon: C)) — mineral

Rough Diamond

Diamond (Pure Carbon: C)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Chert (Microcrystalline quartz (SiO2)) — sedimentary

Chert

Microcrystalline quartz (SiO2)

Siltstone Pebble (Siltstone (composed of microscopic quartz and clay minerals)) — sedimentary

Siltstone Pebble

Siltstone (composed of microscopic quartz and clay minerals)

Hag Stone (Odin Stone / Adder Stone) (Perforated Pebble (commonly Chert, Mudstone, or Limestone)) — sedimentary

Hag Stone (Odin Stone / Adder Stone)

Perforated Pebble (commonly Chert, Mudstone, or Limestone)

Sandstone (with Rock Art) (Sandstone (Clastic Sedimentary Rock)) — sedimentary

Sandstone (with Rock Art)

Sandstone (Clastic Sedimentary Rock)

Shale (Beach-worn) (Laminated Pelite (primarily clay minerals and quartz)) — sedimentary

Shale (Beach-worn)

Laminated Pelite (primarily clay minerals and quartz)

Basalt (Basalt) — igneous

Basalt

Basalt

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Porphyry (Porphyritic Igneous Rock) — igneous

Porphyry

Porphyritic Igneous Rock

Chert Nodule (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Nodule

Microcrystalline Quartz (SiO2)

Sandstone (with potentially high Feldspar/Arkose content) (Clastic sedimentary rock (SiO2 dominated)) — sedimentary

Sandstone (with potentially high Feldspar/Arkose content)

Clastic sedimentary rock (SiO2 dominated)

Petoskey Stone (Hexagonaria percarinata (Fossilized Coral)) — sedimentary

Petoskey Stone

Hexagonaria percarinata (Fossilized Coral)

Granodiorite (Granodiorite) — igneous

Granodiorite

Granodiorite

Shale fragment (Shale (clay mineral rich sedimentary rock)) — sedimentary

Shale fragment

Shale (clay mineral rich sedimentary rock)

Sandstone (lithic wacke) (Arenite / Lithic Wacke (mostly SiO2 with rock fragments)) — sedimentary

Sandstone (lithic wacke)

Arenite / Lithic Wacke (mostly SiO2 with rock fragments)

Basalt (Basalt (extrusive igneous rock)) — Igneous

Basalt

Basalt (extrusive igneous rock)

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

Chert (Chert / Flint)

Microcrystalline Quartz (SiO2)

Sandstone (Sedimentary rock composed mainly of sand-sized minerals or rock grains) — sedimentary

Sandstone

Sedimentary rock composed mainly of sand-sized minerals or rock grains

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Banded Sedimentary Rock (Wishbone Stone / Banded Quartzite or Limestone) (Silicified limestone or banded sedimentary rock with mineral veins) — sedimentary

Banded Sedimentary Rock (Wishbone Stone / Banded Quartzite or Limestone)

Silicified limestone or banded sedimentary rock with mineral veins

Vesicular Basalt (or Scoria) (Vesicular Basalt) — igneous

Vesicular Basalt (or Scoria)

Vesicular Basalt

Chert (and Agate/Chalcedony) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (and Agate/Chalcedony)

Microcrystalline Quartz (SiO2)

Red Sandstone (Arenite (Ferruginous Sandstone)) — sedimentary

Red Sandstone

Arenite (Ferruginous Sandstone)

Quartzite (Metamorphic quartz rock (SiO2)) — metamorphic

Quartzite

Metamorphic quartz rock (SiO2)

Quartzite (Metamorphic Quartz Rock (SiO2)) — metamorphic

Quartzite

Metamorphic Quartz Rock (SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

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

Chert (Flint)

Microcrystalline quartz (SiO2)

Sandstone (Sandstone (Arenite)) — sedimentary

Sandstone

Sandstone (Arenite)

Sandstone (likely Conglomerate or Gritstone) (Arenite (SiO2 based)) — sedimentary

Sandstone (likely Conglomerate or Gritstone)

Arenite (SiO2 based)

Basalt (Basalt) — Igneous

Basalt

Basalt

Granite (Giallo Ornamental / Venetian Gold) (Granite (composed mainly of Quartz, Feldspar, Biotite, and Garnet)) — igneous

Granite (Giallo Ornamental / Venetian Gold)

Granite (composed mainly of Quartz, Feldspar, Biotite, and Garnet)

Citrine (Silicon Dioxide (SiO2)) — mineral

Citrine

Silicon Dioxide (SiO2)

Granite (Phaneritic Plutonic Felsic Rock) — igneous

Granite

Phaneritic Plutonic Felsic Rock

Granite (Granite (Phaneritic igneous rock)) — igneous

Granite

Granite (Phaneritic igneous rock)

Chalk (Carbonate rock (mainly CaCO3)) — sedimentary

Chalk

Carbonate rock (mainly CaCO3)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock