Rock Identifier

Category

Sedimentary Like (Industrial Composite)

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

Stilbite (Stilbite-Ca (NaCa4Mg[Al9Si27O72]·28H2O)) — mineral

Stilbite

Stilbite-Ca (NaCa4Mg[Al9Si27O72]·28H2O)

mineral
Mica Schist (Mica Schist) — metamorphic

Mica Schist

Mica Schist

metamorphic
Native Copper (Penny specimen) (Native Copper (Cu)) — mineral

Native Copper (Penny specimen)

Native Copper (Cu)

mineral
Pumice (Vesicular volcanic glass (primarily SiO2)) — igneous

Pumice

Vesicular volcanic glass (primarily SiO2)

igneous
Cubic Zirconia (as used in jewelry setting) (Zirconium dioxide (ZrO2)) — mineral

Cubic Zirconia (as used in jewelry setting)

Zirconium dioxide (ZrO2)

mineral
Anthracite Coal (Anthracite) — metamorphic

Anthracite Coal

Anthracite

metamorphic
Granitic Pegmatite (Phaneritic Granite with Potassium Feldspar (KAlSi3O8), Quartz (SiO2), and Plagioclase) — igneous

Granitic Pegmatite

Phaneritic Granite with Potassium Feldspar (KAlSi3O8), Quartz (SiO2), and Plagioclase

igneous
Diabase (Dolerite) Cobble (Diabase / Dolerite) — igneous

Diabase (Dolerite) Cobble

Diabase / Dolerite

igneous
Basalt (Basalt (Mafic volcanic rock)) — igneous

Basalt

Basalt (Mafic volcanic rock)

igneous
Almandine Garnet in Matrix (Almandine Garnet (Fe3Al2(SiO4)3)) — metamorphic

Almandine Garnet in Matrix

Almandine Garnet (Fe3Al2(SiO4)3)

metamorphic
Rough Star Sapphire (Corundum) (Al2O3 (Aluminum Oxide)) — mineral

Rough Star Sapphire (Corundum)

Al2O3 (Aluminum Oxide)

mineral
Garnet (Almandine) (Almandine, Fe3Al2Si3O12) — mineral

Garnet (Almandine)

Almandine, Fe3Al2Si3O12

mineral
Marble (Metamorphosed Limestone (principally CaCO3)) — metamorphic

Marble

Metamorphosed Limestone (principally CaCO3)

metamorphic
Vesicular Basalt with Oxidized Crust (Vesicular Basalt (Iron-rich extrusive volcanic rock)) — igneous

Vesicular Basalt with Oxidized Crust

Vesicular Basalt (Iron-rich extrusive volcanic rock)

igneous
Anthracite Coal (Anthracite (Carbon C)) — metamorphic

Anthracite Coal

Anthracite (Carbon C)

metamorphic
Gold Flakes in Oil (Novelty Specimen) (Native Gold (Au)) — mineral

Gold Flakes in Oil (Novelty Specimen)

Native Gold (Au)

mineral
Prehnite (Prehnite (Ca2Al(AlSi3O10)(OH)2)) — mineral

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

mineral
Granite (Granite (composed of Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Granite (composed of Quartz, Alkali Feldspar, and Plagioclase)

igneous
Quartz Pebble (Chalcedony/Agate) (Silicon Dioxide (SiO2)) — Mineral

Quartz Pebble (Chalcedony/Agate)

Silicon Dioxide (SiO2)

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

Chert (Flint)

Chert (SiO2)

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

Anthracite Coal

Anthracite (Carbon-rich metamorphic coal)

sedimentary
Quartzite (Quartzite (primarily composed of SiO O₂)) — Sedimentary Rock

Quartzite

Quartzite (primarily composed of SiO O₂)

Sedimentary Rock
Yellow Jasper (Silicon Dioxide (SiO2) - variety of Chalcedony) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) - variety of Chalcedony

sedimentary
Jasper (yellow/cream variety) (SiO₂ (Cryptocrystalline Quartz)) — Sedimentary

Jasper (yellow/cream variety)

SiO₂ (Cryptocrystalline Quartz)

Sedimentary
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Smoky Quartz with Feldspar (Quartz (SiO2) with Potassium Feldspar (KAlSi3O8)) — mineral

Smoky Quartz with Feldspar

Quartz (SiO2) with Potassium Feldspar (KAlSi3O8)

mineral
Milk Quartz (with Iron staining) (Silicon Dioxide (SiO2)) — mineral

Milk Quartz (with Iron staining)

Silicon Dioxide (SiO2)

mineral
Schist (Mica Schist (predominantly Muscovite/Biotite)) — metamorphic

Schist

Mica Schist (predominantly Muscovite/Biotite)

metamorphic
White Quartzite (Quartzite (primarily SiO2 - Silicon Dioxide)) — metamorphic

White Quartzite

Quartzite (primarily SiO2 - Silicon Dioxide)

metamorphic
Greenschist / Chloritaform Schist (Chlorite Schist (Group of Silicate Minerals)) — metamorphic

Greenschist / Chloritaform Schist

Chlorite Schist (Group of Silicate Minerals)

metamorphic
Agate (Agate (Silicon Dioxide, SiO2)) — mineral

Agate

Agate (Silicon Dioxide, SiO2)

mineral
Citrine Quartz (Crystalline Quartz (SiO2 with iron impurities)) — mineral

Citrine Quartz

Crystalline Quartz (SiO2 with iron impurities)

mineral
Biotite Schist (Biotite Schist) — Metamorphic

Biotite Schist

Biotite Schist

Metamorphic
Almandine Garnet in Schist (Almandine, Fe3Al2(SiO4)3) — metamorphic

Almandine Garnet in Schist

Almandine, Fe3Al2(SiO4)3

metamorphic
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Yellow Jasper (Chalcedony (SiO2) with iron oxide inclusions) — mineral

Yellow Jasper

Chalcedony (SiO2) with iron oxide inclusions

mineral
Ruby in Matrix (Corundum (Al2O3)) — mineral

Ruby in Matrix

Corundum (Al2O3)

mineral
Granite (Granite (phaneritic intrusive felsic igneous rock)) — igneous

Granite

Granite (phaneritic intrusive felsic igneous rock)

igneous
Granite Glacial Erratic (Granite (Phaneritic Quartz-Feldspar Plutonic Rock)) — igneous

Granite Glacial Erratic

Granite (Phaneritic Quartz-Feldspar Plutonic Rock)

igneous
Quartzite (or Milky Quartz pebble) (Quartzite (Metamorphosed Sandstone) / Silicon Dioxide (SiO2)) — metamorphic

Quartzite (or Milky Quartz pebble)

Quartzite (Metamorphosed Sandstone) / Silicon Dioxide (SiO2)

metamorphic
White Quartz Pebble (Crystalline Silicon Dioxide (SiO2)) — mineral

White Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

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

Bay Scallop Shell

Argopecten irradians (Biogenic Calcium Carbonate / CaCO3)

sedimentary