Rock Identifier

Category

Industrial By Product

Browse industrial by product specimens identified by the Rock Identifier community.

Rough Corundum (likely Sapphire or Common Corundum) (Aluminum oxide (Al2O3)) — mineral

Rough Corundum (likely Sapphire or Common Corundum)

Aluminum oxide (Al2O3)

mineral
Bauxite (Alumina-rich rock (consisting of Gibbsite, Boehmite, and Diaspore)) — sedimentary

Bauxite

Alumina-rich rock (consisting of Gibbsite, Boehmite, and Diaspore)

sedimentary
Laterite (Laterite (Iron and aluminum-rich residual rock)) — sedimentary

Laterite

Laterite (Iron and aluminum-rich residual rock)

sedimentary
Asphalt (Bituminous Concrete) (Asphaltum / Bitumen-Aggregate Matrix) — Technonatural composite (often containing sedimentary/igneous aggregate)

Asphalt (Bituminous Concrete)

Asphaltum / Bitumen-Aggregate Matrix

Technonatural composite (often containing sedimentary/igneous aggregate)
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Nickel (Nickel (Ni)) — mineral

Nickel

Nickel (Ni)

mineral
Diamond (faceted) (Diamond (Pure Carbon, C)) — mineral

Diamond (faceted)

Diamond (Pure Carbon, C)

mineral
Aragonite Star Cluster (Aragonite (Calcium Carbonate, CaCO3)) — mineral

Aragonite Star Cluster

Aragonite (Calcium Carbonate, CaCO3)

mineral
Milky Quartz (Gold-bearing Prospecting Specimen) (Silicon Dioxide (SiO2)) — mineral

Milky Quartz (Gold-bearing Prospecting Specimen)

Silicon Dioxide (SiO2)

mineral
Schorl (Black Tourmaline) (Sodium Iron Aluminum Borosilicate Hydroxide; NaFe2+3Al6Si6O18(BO3)3(OH)3OH) — mineral

Schorl (Black Tourmaline)

Sodium Iron Aluminum Borosilicate Hydroxide; NaFe2+3Al6Si6O18(BO3)3(OH)3OH

mineral
Milky Quartz with Iron Staining (Silicon Dioxide (SiO2)) — mineral

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

mineral
Olivine (Peridot) (Magnesium Iron Silicate (Mg,Fe)2SiO4) — Mineral

Olivine (Peridot)

Magnesium Iron Silicate (Mg,Fe)2SiO4

Mineral
Banded Agate (Gray Agate) (Silicon Dioxide (SiO2) - Chalcedony) — mineral

Banded Agate (Gray Agate)

Silicon Dioxide (SiO2) - Chalcedony

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

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Red Quartzite (Quartzite (SiO2)) — metamorphic

Red Quartzite

Quartzite (SiO2)

metamorphic
Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

mineral
Mica Schist (Muscovite/Biotite Schist) — metamorphic

Mica Schist

Muscovite/Biotite Schist

metamorphic
Botryoidal Chalcedony (Cryptocrystalline Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony

Cryptocrystalline Silicon Dioxide (SiO2)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

sedimentary
Sodalite (Sodalite (Na8(Al6Si6O24)Cl2)) — mineral

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

mineral
Schist (Chlorite-Mica Schist) — metamorphic

Schist

Chlorite-Mica Schist

metamorphic
Quartz pebble (Silicon dioxide (SiO2)) — Mineral

Quartz pebble

Silicon dioxide (SiO2)

Mineral
Desert Rose (Baryte or Gypsum (Selenite) with Sand Inclusions (BaSO4 or CaSO4·2H2O)) — mineral

Desert Rose

Baryte or Gypsum (Selenite) with Sand Inclusions (BaSO4 or CaSO4·2H2O)

mineral
Diamond (Pure Carbon (C)) — mineral

Diamond

Pure Carbon (C)

mineral
Diamond (Diamond (Pure Carbon, C)) — mineral

Diamond

Diamond (Pure Carbon, C)

mineral
Actinolite (Ca2(Mg,Fe)5Si8O22(OH)2) — mineral

Actinolite

Ca2(Mg,Fe)5Si8O22(OH)2

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

Yellow Quartz Pebble

Silicon Dioxide (SiO2)

mineral
Fancy Jasper (Ocean Jasper or River Jasper variant) (Silicon Dioxide with inclusions (SiO2)) — sedimentary

Fancy Jasper (Ocean Jasper or River Jasper variant)

Silicon Dioxide with inclusions (SiO2)

sedimentary
Labradorite (Labradorite (Plagioclase Feldspar Series) - (Ca, Na)(Al, Si)4O8) — mineral

Labradorite

Labradorite (Plagioclase Feldspar Series) - (Ca, Na)(Al, Si)4O8

mineral
Mica-rich Sandstone or Micaceous Schist Weathering (Micaceous Schist (Muscovite-Quartz composition)) — Metamorphic or Sedimentary depending on local grade

Mica-rich Sandstone or Micaceous Schist Weathering

Micaceous Schist (Muscovite-Quartz composition)

Metamorphic or Sedimentary depending on local grade
Beach Pebble (likely Quartz or Chalcedony) (Silicon Dioxide (SiO2)) — Mineral

Beach Pebble (likely Quartz or Chalcedony)

Silicon Dioxide (SiO2)

Mineral
Vesicular Basalt with Oxidation (Scoriaceous Olivine Basalt (Mafic volcanic rock)) — igneous

Vesicular Basalt with Oxidation

Scoriaceous Olivine Basalt (Mafic volcanic rock)

igneous
Basalt (Basalt (Aphanitic extrusive igneous rock)) — igneous

Basalt

Basalt (Aphanitic extrusive igneous rock)

igneous
Blue Sapphire (Corundum (Al2O3)) — mineral

Blue Sapphire

Corundum (Al2O3)

mineral
Bixbyite on Rhyolite (Bixbyite (Mn2+,Fe3+)2O3) — mineral

Bixbyite on Rhyolite

Bixbyite (Mn2+,Fe3+)2O3

mineral
Garnet Rhyolite (Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet) — igneous

Garnet Rhyolite

Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet

igneous
Olivine (Peridot) (Magnesium Iron Silicate (Mg,Fe)2SiO4) — mineral

Olivine (Peridot)

Magnesium Iron Silicate (Mg,Fe)2SiO4

mineral
Sandstone (Arenite (SiO2 + various cementing minerals)) — sedimentary

Sandstone

Arenite (SiO2 + various cementing minerals)

sedimentary
Quartz Druze on Matrix (Geode Fragment) (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz Druze on Matrix (Geode Fragment)

Quartz (Silicon Dioxide, SiO2)

mineral
Anthracite Coal (Anthracite) — metamorphic

Anthracite Coal

Anthracite

metamorphic
Epidote in Quartz (Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) in Milky Quartz (SiO2)) — metamorphic

Epidote in Quartz

Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) in Milky Quartz (SiO2)

metamorphic