Rock Identifier

Category

Industrial Byproduct

Browse industrial byproduct specimens identified by the Rock Identifier community.

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Adirondack Garnet

Adirondack Garnet

Almandine Garnet

Almandine Garnet

Diatomaceous Earth

Diatomaceous Earth

Tripolite

Tripolite

Aquamarine on Feldspar Matrix (Beryl (Be3Al2Si6O18) with Potassium Feldspar (KAlSi3O8)) — mineral

Aquamarine on Feldspar Matrix

Beryl (Be3Al2Si6O18) with Potassium Feldspar (KAlSi3O8)

mineral
Magnetite (Lodestone variety) (Magnetite (Iron(II,III) oxide, Fe3O4)) — mineral

Magnetite (Lodestone variety)

Magnetite (Iron(II,III) oxide, Fe3O4)

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

Sapphire (Corundum)

Corundum (Al2O3)

mineral
Anthracite Coal (Anthracite) — metamorphic

Anthracite Coal

Anthracite

metamorphic
Quartzite (Quartzite (Primary mineral: SiO2)) — metamorphic

Quartzite

Quartzite (Primary mineral: SiO2)

metamorphic
Anthracite Coal (Anthracite (Carbon-rich metamorphic sedimentary rock)) — sedimentary

Anthracite Coal

Anthracite (Carbon-rich metamorphic sedimentary rock)

sedimentary
Cubic Zirconia (Simulated Diamond) (Zirconium Dioxide (ZrO2)) — mineral (synthetic)

Cubic Zirconia (Simulated Diamond)

Zirconium Dioxide (ZrO2)

mineral (synthetic)
Chert (Flint) (Chert (SiO2)) — sedimentary

Chert (Flint)

Chert (SiO2)

sedimentary
Agate (specifically a Blue Agate Geode Slice) (Chalcedony (cryptocrystalline variety of Quartz); SiO2) — mineral

Agate (specifically a Blue Agate Geode Slice)

Chalcedony (cryptocrystalline variety of Quartz); SiO2

mineral
Green Banded Chert (Agate/Jasper) (Silicon Dioxide (SiO2) with trace impurities of Chlorite or Glauconite) — sedimentary

Green Banded Chert (Agate/Jasper)

Silicon Dioxide (SiO2) with trace impurities of Chlorite or Glauconite

sedimentary
Quartzite Cobble (Quartzite (SiO2)) — metamorphic

Quartzite Cobble

Quartzite (SiO2)

metamorphic
Agate Geode (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Agate Geode

Silicon Dioxide (SiO2) - Microcrystalline Quartz

mineral
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

mineral
Fluorite (often called Rainbow Fluorite or Purple-Green Fluorite) (Calcium Fluoride (CaF2)) — mineral

Fluorite (often called Rainbow Fluorite or Purple-Green Fluorite)

Calcium Fluoride (CaF2)

mineral
Anthracite Coal (Anthracite (Carbon-rich Sedimentary-to-Metamorphic Rock)) — metamorphic

Anthracite Coal

Anthracite (Carbon-rich Sedimentary-to-Metamorphic Rock)

metamorphic
Basalt with Magnetite (Crystalline Basalt (Primarily Plagioclase and Pyroxene) with Magnetite (Fe3O4)) — igneous

Basalt with Magnetite

Crystalline Basalt (Primarily Plagioclase and Pyroxene) with Magnetite (Fe3O4)

igneous
Bumblebee Jasper (Anhydrite with Sulfur, Hematite, and Orpiment (SiO2/CaSO4 mixture)) — sedimentary

Bumblebee Jasper

Anhydrite with Sulfur, Hematite, and Orpiment (SiO2/CaSO4 mixture)

sedimentary
Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

metamorphic
Magnetite / Iron Ore (Magnetite (Fe3O4)) — mineral

Magnetite / Iron Ore

Magnetite (Fe3O4)

mineral
Jasper (Red Jasper) (Silicon Dioxide (SiO₂)) — sedimentary

Jasper (Red Jasper)

Silicon Dioxide (SiO₂)

sedimentary
Granitic Pegmatite (Granitic Pegmatite (principally Quartz, Feldspar, and Mica)) — igneous

Granitic Pegmatite

Granitic Pegmatite (principally Quartz, Feldspar, and Mica)

igneous
Diamond (Native Carbon (C)) — mineral

Diamond

Native Carbon (C)

mineral
Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

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

Honey Calcite

Calcium Carbonate (CaCO3)

mineral
Green Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

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

Orange Calcite

Calcium Carbonate (CaCO3)

mineral
Quartz Sand Grain (Silicon Dioxide (SiO2)) — mineral

Quartz Sand Grain

Silicon Dioxide (SiO2)

mineral
Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

mineral
Granite (Granite (phaneritic intrusive igneous rock consisting mainly of quartz, alkali feldspar, and plagioclase)) — igneous

Granite

Granite (phaneritic intrusive igneous rock consisting mainly of quartz, alkali feldspar, and plagioclase)

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

Chert (Flint)

Cryptocrystalline Quartz (SiO2)

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

Milky Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

mineral
Fluorite (Calcium fluoride (CaF2)) — mineral

Fluorite

Calcium fluoride (CaF2)

mineral
Satin Spar (commonly sold as Selenite) (Hydrous Calcium Sulfate (CaSO4·2H2O)) — mineral

Satin Spar (commonly sold as Selenite)

Hydrous Calcium Sulfate (CaSO4·2H2O)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

mineral
Satin Spar (often marketed as Selenite) (Fibrous Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O) — mineral

Satin Spar (often marketed as Selenite)

Fibrous Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O

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

Milky Quartz with Iron Staining

Quartz (Silicon Dioxide, SiO2)

mineral
Diamond (as set in a metal alloy ring) (Diamond (Pure Carbon, C)) — mineral

Diamond (as set in a metal alloy ring)

Diamond (Pure Carbon, C)

mineral
Chalk (Calcium Carbonate (CaCO3)) — sedimentary

Chalk

Calcium Carbonate (CaCO3)

sedimentary
Chalcedony (Agate Pebble) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate Pebble)

Silicon Dioxide (SiO2)

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

Orange Calcite

Calcium Carbonate (CaCO3)

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

Smoky Quartz

Quartz (Silicon Dioxide) - SiO2

mineral