Rock Identifier

Category

Sedimentary Like (Industrial Composite)

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

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

Granitic Pegmatite

Granitic Pegmatite (principally Quartz, Feldspar, and Mica)

igneous
Grey Chalcedony (Silicon Dioxide (SiO2)) — mineral

Grey Chalcedony

Silicon Dioxide (SiO2)

mineral
Chalcedony (Cryptocrystalline Quartz (SiO2)) — mineral

Chalcedony

Cryptocrystalline Quartz (SiO2)

mineral
N/A (Non-Geological Object) — N/A

N/A (Non-Geological Object)

N/A
Anthracite Coal (Anthracite (Carbon-based metamorphic rock)) — metamorphic

Anthracite Coal

Anthracite (Carbon-based metamorphic rock)

metamorphic
Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — mineral

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

mineral
Quartzite (Quartzite (chiefly SiO2)) — metamorphic

Quartzite

Quartzite (chiefly SiO2)

metamorphic
Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

sedimentary
Greenschist (Chlorite schist) — metamorphic

Greenschist

Chlorite schist

metamorphic
Ironstone Concretion (Limonite/Goethite) (Ferruginous concretion (Fe2O3·nH2O)) — sedimentary

Ironstone Concretion (Limonite/Goethite)

Ferruginous concretion (Fe2O3·nH2O)

sedimentary
Quartzite pebble (Quartzite (SiO2)) — metamorphic

Quartzite pebble

Quartzite (SiO2)

metamorphic
Sandstone (likely Quartzose) (Arenite (primarily SiO2)) — sedimentary

Sandstone (likely Quartzose)

Arenite (primarily SiO2)

sedimentary
Agate (Silicon Dioxide (SiO2)) — mineral

Agate

Silicon Dioxide (SiO2)

mineral
Apatite (Apatite group mineral (e.g., Fluorapatite - Ca5(PO4)3F, Chlorapatite - Ca5(PO4)3Cl, Hydroxylapatite - Ca5(PO4)3(OH))) — mineral

Apatite

Apatite group mineral (e.g., Fluorapatite - Ca5(PO4)3F, Chlorapatite - Ca5(PO4)3Cl, Hydroxylapatite - Ca5(PO4)3(OH))

mineral
Granitic Pegmatite (Pegmatite containing Quartz, Pink Potassium Feldspar, and Muscovite Mica) — igneous

Granitic Pegmatite

Pegmatite containing Quartz, Pink Potassium Feldspar, and Muscovite Mica

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

Agate

Agate (Silicon Dioxide, SiO2)

mineral
Pegmatite (Pegmatitic Granite) — igneous

Pegmatite

Pegmatitic Granite

igneous
Granitic Pegmatite (Coarse-grained Igneous Rock (Granitic composition: KAlSi3O8, SiO2)) — igneous

Granitic Pegmatite

Coarse-grained Igneous Rock (Granitic composition: KAlSi3O8, SiO2)

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

Yellow Quartz Pebble

SiO2 (Silicon Dioxide)

mineral
Sapphire (Rough Corundum) (Corundum (Aluminum Oxide, Al2O3)) — mineral

Sapphire (Rough Corundum)

Corundum (Aluminum Oxide, Al2O3)

mineral
Garnet Schist (Almandine-Mica Schist) — metamorphic

Garnet Schist

Almandine-Mica Schist

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

Blue Calcite

Calcium Carbonate (CaCO3)

mineral
Red Shale (Fissile Siliciclastic Sedimentary Rock) — sedimentary

Red Shale

Fissile Siliciclastic Sedimentary Rock

sedimentary
Basalt (Vesicular/Scoria) (Vesicular Basalt) — igneous

Basalt (Vesicular/Scoria)

Vesicular Basalt

igneous
Kyanite (Kyanite (Al2SiO5)) — Mineral

Kyanite

Kyanite (Al2SiO5)

Mineral
Cubic Zirconia (as a jewelry specimen) (Zirconium dioxide (ZrO2)) — mineral

Cubic Zirconia (as a jewelry specimen)

Zirconium dioxide (ZrO2)

mineral
Quartzite (or Iron-Stained Quartz Pebble) (Silicon Dioxide (SiO2) with Ferric Oxide inclusions) — metamorphic

Quartzite (or Iron-Stained Quartz Pebble)

Silicon Dioxide (SiO2) with Ferric Oxide inclusions

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Slag (Industrial Byproduct) (Ferro-silicate glass (Slag)) — Anthropogenic (Man-made industrial deposit)

Slag (Industrial Byproduct)

Ferro-silicate glass (Slag)

Anthropogenic (Man-made industrial deposit)
Biotite Schist (with Garnet and Pyrite) (K(Mg,Fe)3AlSi3O10(OH,F)2 (Biotite focus)) — metamorphic

Biotite Schist (with Garnet and Pyrite)

K(Mg,Fe)3AlSi3O10(OH,F)2 (Biotite focus)

metamorphic
Bornite (Peacock Ore) (Bornite (Copper iron sulfide - Cu5FeS4)) — mineral

Bornite (Peacock Ore)

Bornite (Copper iron sulfide - Cu5FeS4)

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

Green Calcite

Calcium Carbonate (CaCO3)

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

Mica Schist

Mica Schist (Predominantly Muscovite/Biotite)

metamorphic
Bauxite (Concretionary) (Bauxite (Al(OH)3, AlO(OH))) — sedimentary

Bauxite (Concretionary)

Bauxite (Al(OH)3, AlO(OH))

sedimentary
Serpentine (Serpentinite (Mg, Fe, Ni)3Si2O5(OH)4) — metamorphic

Serpentine

Serpentinite (Mg, Fe, Ni)3Si2O5(OH)4

metamorphic
Silver (Native Element / Alloy) (Silver (Ag)) — mineral

Silver (Native Element / Alloy)

Silver (Ag)

mineral
Rough Blue Sapphire (Corundum (Al2O3)) — mineral

Rough Blue Sapphire

Corundum (Al2O3)

mineral
Cubic Zirconia (in Jewelry) (Zirconium Dioxide (ZrO2)) — mineral

Cubic Zirconia (in Jewelry)

Zirconium Dioxide (ZrO2)

mineral
Garnet and Quartz (Pyrope or Almandine (Red Garnets) and Quartz (Center Stone)) — mineral

Garnet and Quartz

Pyrope or Almandine (Red Garnets) and Quartz (Center Stone)

mineral
Quartz with Mica inclusions (likely Iron-stained) (Silicon Dioxide (SiO2) with Phyllosilicates) — mineral

Quartz with Mica inclusions (likely Iron-stained)

Silicon Dioxide (SiO2) with Phyllosilicates

mineral
Asphalt / Bituminous Aggregate (Bituminous mixture (Hydrocarbon-based sediment)) — sedimentary

Asphalt / Bituminous Aggregate

Bituminous mixture (Hydrocarbon-based sediment)

sedimentary
Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

sedimentary