Rock Identifier

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Industrial By Product

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

Banded Iron Formation (BIF) with Quartz (Banded Iron Formation, often composed of alternating layers of hematite (Fe2O3) or magnetite (Fe3O4) and chert (microcrystalline quartz, SiO2)) — Sedimentary

Banded Iron Formation (BIF) with Quartz

Banded Iron Formation, often composed of alternating layers of hematite (Fe2O3) or magnetite (Fe3O4) and chert (microcrystalline quartz, SiO2)

Rough Corundum (likely Sapphire/Zircon-bearing) (Aluminium Oxide (Al2O3)) — mineral

Rough Corundum (likely Sapphire/Zircon-bearing)

Aluminium Oxide (Al2O3)

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

Fluorite

Fluorite (Calcium Fluoride - CaF2)

Red Garnet (Pyrope or Almandine) (Magnesium aluminum silicate (Mg3Al2(SiO4)3) or Iron aluminum silicate (Fe3Al2(SiO4)3)) — mineral

Red Garnet (Pyrope or Almandine)

Magnesium aluminum silicate (Mg3Al2(SiO4)3) or Iron aluminum silicate (Fe3Al2(SiO4)3)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Native Copper with Malachite and Chrysocolla (Native Copper (Cu) with Malachite [Cu2CO3(OH)2] and Chrysocolla [(Cu,Al)2H2Si2O5(OH)4·nH2O]) — mineral

Native Copper with Malachite and Chrysocolla

Native Copper (Cu) with Malachite [Cu2CO3(OH)2] and Chrysocolla [(Cu,Al)2H2Si2O5(OH)4·nH2O]

Dyed and Metallic Coated Agate Geode (Silicon Dioxide (SiO2) with titanium/gold vapor deposition coating) — sedimentary (primary) with artificial modification

Dyed and Metallic Coated Agate Geode

Silicon Dioxide (SiO2) with titanium/gold vapor deposition coating

sedimentary (primary) with artificial modification

Blue Dyed Agate (Chalcedony (cryptocrystalline variety of Quartz), SiO2) — mineral

Blue Dyed Agate

Chalcedony (cryptocrystalline variety of Quartz), SiO2

Granite (Granitoid (dominated by Quartz and Feldspar)) — igneous

Granite

Granitoid (dominated by Quartz and Feldspar)

Greywacke (River Pebble) (Greywacke sandstone with quartz veining) — sedimentary

Greywacke (River Pebble)

Greywacke sandstone with quartz veining

Diabase (Greenstone) (Diabase (also known as Dolerite)) — igneous

Diabase (Greenstone)

Diabase (also known as Dolerite)

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

Diamond

Diamond (pure Carbon, C)

Anthracite Coal (Anthracite (Carbon-based solid)) — metamorphic

Anthracite Coal

Anthracite (Carbon-based solid)

Diamond (Diamond (pure carbon; C)) — Mineral

Diamond

Diamond (pure carbon; C)

Pumice (Pumice (volcanic rock)) — Igneous

Pumice

Pumice (volcanic rock)

Anthracite Coal (Anthracite) — metamorphic

Anthracite Coal

Anthracite

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Chert (Flint) (Chert (SiO2)) — sedimentary

Chert (Flint)

Chert (SiO2)

Garnet (almandine or pyrope variety) (Silicate mineral Group: (Fe, Mg, Mn, Ca)3(Al, Fe, Cr)2(SiO4)3) — mineral

Garnet (almandine or pyrope variety)

Silicate mineral Group: (Fe, Mg, Mn, Ca)3(Al, Fe, Cr)2(SiO4)3

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

Amethyst Quartz (Amethyst Geode)

Silicon Dioxide (SiO2) with iron impurities

Fursuit (Synthetic Fur Specimen) (Canis anthropomorphus syntheticus) — Anthropomorphic Textile Construct

Fursuit (Synthetic Fur Specimen)

Canis anthropomorphus syntheticus

Anthropomorphic Textile Construct

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

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

Yellow Quartz / Quartzite Pebble

Silicon Dioxide (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Ferruginous Quartz (Iron-stained Quartz) (Silicon Dioxide (SiO2) with iron oxide inclusions (Limonite/Hematite)) — mineral

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2) with iron oxide inclusions (Limonite/Hematite)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Erythrite (or Lab-Grown Cobaltite/Cinnabar Analog) (Erythrite (Co3(AsO4)2·8H2O)) — mineral

Erythrite (or Lab-Grown Cobaltite/Cinnabar Analog)

Erythrite (Co3(AsO4)2·8H2O)

Basalt with Olivine Phenocrysts (Porphyritic Basalt (Mineral formula of Olivine: (Mg,Fe)2SiO4)) — Igneous

Basalt with Olivine Phenocrysts

Porphyritic Basalt (Mineral formula of Olivine: (Mg,Fe)2SiO4)

Anthracite Coal (Anthracite (Highly Metamorphosed Coal)) — sedimentary

Anthracite Coal

Anthracite (Highly Metamorphosed Coal)

Bay Scallop Shell (Argopecten irradians (Biogenic Calcium Carbonate / CaCO3)) — sedimentary

Bay Scallop Shell

Argopecten irradians (Biogenic Calcium Carbonate / CaCO3)

Travertine (often colloquially called Tufa) (Chemical Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Travertine (often colloquially called Tufa)

Chemical Sedimentary Calcium Carbonate (CaCO3)

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

Sodalite

Sodalite - Na8(Al6Si6O24)Cl2

Quartz Vein in Host Rock (Hydrothermal Quartz (SiO2) in Slates/Schists) — metamorphic

Quartz Vein in Host Rock

Hydrothermal Quartz (SiO2) in Slates/Schists

Black Star Diopside (Diopside (CaMgSi2O6) with Magnetite inclusions) — mineral

Black Star Diopside

Diopside (CaMgSi2O6) with Magnetite inclusions

Anthracite Coal (Anthracite (Carbon-rich metamorphic coal)) — metamorphic

Anthracite Coal

Anthracite (Carbon-rich metamorphic coal)

Chalcedony (Agate/Chert) (Silicon Dioxide (SiO₂)) — mineral

Chalcedony (Agate/Chert)

Silicon Dioxide (SiO₂)

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

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

Cubic Zirconia (Simulated Diamond)

Zirconium Dioxide (ZrO2)

mineral (synthetic)

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

Quartzite

Quartzite (Primary mineral: SiO2)

Botryoidal Pyrite (Iron Sulfide (FeS2)) — mineral

Botryoidal Pyrite

Iron Sulfide (FeS2)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

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

Sapphire (Corundum)

Corundum (Al2O3)