Rock Identifier

Category

Sedimentary Like (Industrial Composite)

Browse sedimentary like (industrial composite) specimens identified by the Rock Identifier community.

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Quartzite with Quartz Veining (Quartzite (primarily SiO2)) — metamorphic

Quartzite with Quartz Veining

Quartzite (primarily SiO2)

Basalt with Secondary Mineralization (Likely Zeolites or Calcite) (Aphanitic mafic volcanic rock with secondary mineral inclusions (e.g., CaAl2Si3O10·3H2O for Scolecite)) — igneous

Basalt with Secondary Mineralization (Likely Zeolites or Calcite)

Aphanitic mafic volcanic rock with secondary mineral inclusions (e.g., CaAl2Si3O10·3H2O for Scolecite)

Basalt (Mafic Igneous Rock) — igneous

Basalt

Mafic Igneous Rock

Rough Diamond (Native Carbon (C)) — mineral

Rough Diamond

Native Carbon (C)

Quartzite (Beach Pebble) (Quartzite (primarily SiO2)) — metamorphic

Quartzite (Beach Pebble)

Quartzite (primarily SiO2)

Red Quartz (Silicon Dioxide (SiO2) with Hematite inclusions) — mineral

Red Quartz

Silicon Dioxide (SiO2) with Hematite inclusions

Almandine Garnet & Tumbled Citrine Quartz (Fe3Al2(SiO4)3 (Garnet) and SiO2 (Quartz)) — mineral

Almandine Garnet & Tumbled Citrine Quartz

Fe3Al2(SiO4)3 (Garnet) and SiO2 (Quartz)

Fairy Stone (Staurolite Concretion) (Staurolite (Fe2+2Al9Si4O23(OH))) — metamorphic

Fairy Stone (Staurolite Concretion)

Staurolite (Fe2+2Al9Si4O23(OH))

Yellow Chalcedony (Agate) (Silicon Dioxide (SiO2)) — mineral

Yellow Chalcedony (Agate)

Silicon Dioxide (SiO2)

Anthracite Coal (Anthracite (a form of coal, primarily carbon)) — sedimentary

Anthracite Coal

Anthracite (a form of coal, primarily carbon)

Native Copper (Native Copper (Cu)) — mineral

Native Copper

Native Copper (Cu)

Jasper (Iron-stained Chalcedony) (SiO2 with Fe2O3 (Iron Oxide) impurities) — Sedimentary / Mineral (Silica)

Jasper (Iron-stained Chalcedony)

SiO2 with Fe2O3 (Iron Oxide) impurities

Sedimentary / Mineral (Silica)

Magnetite / Ironstone (Magnetite (Fe3O4)) — mineral

Magnetite / Ironstone

Magnetite (Fe3O4)

Satin Spar (Selenite) (Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)) — mineral

Satin Spar (Selenite)

Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)

Granodiorite (containing Biotite and Quartz) (Granodiorite (Plagioclase-rich phaneritic intrusive rock)) — igneous

Granodiorite (containing Biotite and Quartz)

Granodiorite (Plagioclase-rich phaneritic intrusive rock)

Schist (Micaceous Schist) (Micaceous schist (Mainly Muscovite/Biotite mixed with Quartz)) — metamorphic

Schist (Micaceous Schist)

Micaceous schist (Mainly Muscovite/Biotite mixed with Quartz)

Granitic Pegmatite (Pegmatite) — igneous

Granitic Pegmatite

Pegmatite

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

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) — mineral

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Bismuth Crystal (Bismuth (element symbol Bi, atomic number 83)) — mineral

Bismuth Crystal

Bismuth (element symbol Bi, atomic number 83)

Iron-stained Quartz (Gossan/Limonite-coated Quartz) (Silicon Dioxide (SiO2) with Hydrated Iron Oxides (FeO(OH)·nH2O)) — mineral

Iron-stained Quartz (Gossan/Limonite-coated Quartz)

Silicon Dioxide (SiO2) with Hydrated Iron Oxides (FeO(OH)·nH2O)

Beryl (Emerald Variety) (Beryllium aluminum silicate (Be3Al2Si6O18)) — mineral

Beryl (Emerald Variety)

Beryllium aluminum silicate (Be3Al2Si6O18)

Aragonite (variety 'Flos Ferri') (Aragonite (CaCO3)) — Mineral

Aragonite (variety 'Flos Ferri')

Aragonite (CaCO3)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Basalt (Extrusive mafic igneous rock) — igneous

Basalt

Extrusive mafic igneous rock

Blue Banded Agate (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Blue Banded Agate

Chalcedony (Silicon Dioxide, SiO2)

Corundum (Sapphire) (Corundum (Al2O3)) — mineral

Corundum (Sapphire)

Corundum (Al2O3)

Anthracite Coal (Anthracite (Carbon ≥ 86%)) — sedimentary

Anthracite Coal

Anthracite (Carbon ≥ 86%)

Sandstone Moqui Marble (Concretion) (Iron oxide concretion (Hematite/Goethite and Quartz)) — sedimentary

Sandstone Moqui Marble (Concretion)

Iron oxide concretion (Hematite/Goethite and Quartz)

Red Jasper (Silicon Dioxide (SiO2) with Iron inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Iron inclusions

Green Druzy Quartz (Prasiolite) (Silicon Dioxide (SiO2) with inclusions (typically Chlorite or Actinolite)) — mineral

Green Druzy Quartz (Prasiolite)

Silicon Dioxide (SiO2) with inclusions (typically Chlorite or Actinolite)

Fluorite (often referred to as Rainbow Fluorite) (Fluorite (Calcium Fluoride, CaF2)) — mineral

Fluorite (often referred to as Rainbow Fluorite)

Fluorite (Calcium Fluoride, CaF2)

Rough Diamond (Diamond (pure carbon, C)) — mineral

Rough Diamond

Diamond (pure carbon, C)

River Pebble (Likely Chert or Fine-Grained Sandstone/Quartzite) (Siliciclastic clast (likely Chert or Quartzarenite/Quartzite pebble)) — Sedimentary

River Pebble (Likely Chert or Fine-Grained Sandstone/Quartzite)

Siliciclastic clast (likely Chert or Quartzarenite/Quartzite pebble)

Cubic Zirconia (Zirconium Dioxide (ZrO2)) — mineral

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Quartzite with inclusions (Metamorphic Rock (Mainly SiO2)) — metamorphic

Quartzite with inclusions

Metamorphic Rock (Mainly SiO2)

Basalt (Basalt) — igneous

Basalt

Basalt

Olivine in Basalt matrix (Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)) — igneous

Olivine in Basalt matrix

Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)

Anthracite Coal (Anthracite) — metamorphic

Anthracite Coal

Anthracite

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)