Rock Identifier

Category

Man Made Material, Not A Natural Rock Or Mineral Specimen

Browse man made material, not a natural rock or mineral specimen specimens identified by the Rock Identifier community.

Diamond (Diamond (C)) — Mineral

Diamond

Diamond (C)

Obsidian (Volcanic Glass (predominantly SiO2)) — igneous

Obsidian

Volcanic Glass (predominantly SiO2)

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

Stichtite (often found in Serpentinite) (Stichtite Mg6Cr2CO3(OH)16·4H2O) — Mineral

Stichtite (often found in Serpentinite)

Stichtite Mg6Cr2CO3(OH)16·4H2O

Basalt (with possible quartz veinsing) (Basalt) — igneous

Basalt (with possible quartz veinsing)

Basalt

Schist with Quartz/Mica (Mica Schist (primarily Muscovite and Quartz)) — Metamorphic

Schist with Quartz/Mica

Mica Schist (primarily Muscovite and Quartz)

Banded Gneiss (Gneiss (High-grade regional metamorphic rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

Clear Quartz (Rock Crystal) (Quartz (Silicon Dioxide, SiO2)) — mineral

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Desert Rose (Gypsum (variety Selenite) or Barite, CaSO4·2H2O) — mineral

Desert Rose

Gypsum (variety Selenite) or Barite, CaSO4·2H2O

Quartz (Milky/Vein Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Vein Quartz)

Silicon Dioxide (SiO2)

Basalt with Jasper Veining (Basaltic Rock with Cryptocrystalline Quartz (SiO2)) — igneous

Basalt with Jasper Veining

Basaltic Rock with Cryptocrystalline Quartz (SiO2)

Mica Schist (Foliated Metamorphic Rock (rich in Muscovite or Biotite)) — metamorphic

Mica Schist

Foliated Metamorphic Rock (rich in Muscovite or Biotite)

Granite (Phaneritic Felsic Intrusive Igneous Rock) — igneous

Granite

Phaneritic Felsic Intrusive Igneous Rock

Demantoid Garnet on Matrix (Demantoid (variety of Andradite Garnet) - Ca3(Fe3+)2(SiO4)3) — mineral

Demantoid Garnet on Matrix

Demantoid (variety of Andradite Garnet) - Ca3(Fe3+)2(SiO4)3

Hag Stone (Perforated Chert (Microcrystalline Silica, SiO2)) — sedimentary

Hag Stone

Perforated Chert (Microcrystalline Silica, SiO2)

Citrine (likely Heat-Treated Amethyst) (Silicon Dioxide (SiO2)) — mineral

Citrine (likely Heat-Treated Amethyst)

Silicon Dioxide (SiO2)

Green Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

Green Jasper

Silicon Dioxide (SiO2) with impurities

Banded Gneiss (Gneiss (pronounced 'nice')) — metamorphic

Banded Gneiss

Gneiss (pronounced 'nice')

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Petrified Wood (Silicified Wood (SiO2 - Silicon Dioxide)) — mineral

Petrified Wood

Silicified Wood (SiO2 - Silicon Dioxide)

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

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Granite (Granite (a felsic intrusive igneous rock)) — Igneous Rock

Granite

Granite (a felsic intrusive igneous rock)

Milky Quartz in Conglomerate Matrix (Silicon Dioxide (SiO2) within Clastic Sedimentary Rock) — sedimentary

Milky Quartz in Conglomerate Matrix

Silicon Dioxide (SiO2) within Clastic Sedimentary Rock

Sandstone (specifically an Iron-Concretion) (Arenite with Iron Oxide (Limonite/Goethite) cementation) — sedimentary

Sandstone (specifically an Iron-Concretion)

Arenite with Iron Oxide (Limonite/Goethite) cementation

Rough Quartz (likely Rose or Amethyst variety) (Silicon Dioxide (SiO2)) — mineral

Rough Quartz (likely Rose or Amethyst variety)

Silicon Dioxide (SiO2)

Quartz (River Siltstone Quartzite Pebble) (Silicon Dioxide (SiO2)) — metamorphic

Quartz (River Siltstone Quartzite Pebble)

Silicon Dioxide (SiO2)

Meteorite (Chondrite) (Stony Meteorite (Ordinary Chondrite)) — igneous

Meteorite (Chondrite)

Stony Meteorite (Ordinary Chondrite)

Andesite (Andesite (Intermediate Extrusive Volcanic Rock)) — igneous

Andesite

Andesite (Intermediate Extrusive Volcanic Rock)

Larimar (Pectolite [NaCa2Si3O8(OH)] with copper substitution) — mineral

Larimar

Pectolite [NaCa2Si3O8(OH)] with copper substitution

Granite Pebble (Felsic Intrusive Igneous Rock (composed of Quartz, Feldspar, and Mica)) — igneous

Granite Pebble

Felsic Intrusive Igneous Rock (composed of Quartz, Feldspar, and Mica)

Milky Quartz with Mineral Inclusions (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz with Mineral Inclusions

Quartz (Silicon Dioxide, SiO2)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Jasper (Red/Yellow) (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper (Red/Yellow)

Silicon Dioxide (SiO2) with impurities

Chert Pebble with Quartz Veins (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Pebble with Quartz Veins

Microcrystalline Quartz (SiO2)

Chert (Commonly known as Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Commonly known as Flint)

Microcrystalline Quartz (SiO2)

Quartz (Clear Quartz/Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

Jasper and Agate (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper and Agate

Microcrystalline Quartz (SiO2)

Olivine in Basalt (Peridot) (Magnesium Iron Silicate (Mg, Fe)2SiO4 in Vesicular Basalt) — igneous

Olivine in Basalt (Peridot)

Magnesium Iron Silicate (Mg, Fe)2SiO4 in Vesicular Basalt

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Chert (and Jasper blend) (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert (and Jasper blend)

Chert (Microcrystalline Quartz, SiO2)

Quartz Geode (Silicon Dioxide (SiO2) in a Secondary Formation) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2) in a Secondary Formation

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

Quartz Pebble (Milky Quartz)

Silicon Dioxide (SiO2)