Rock Identifier

Category

Sedimentary Like (Industrial Composite)

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

Learn about Sedimentary Like (Industrial Composite) in the encyclopedia

Adirondack Garnet

Adirondack Garnet

Conglomerate

Blue Line Jasper

Lime Green Tourmaline

Lime Green Tourmaline

Quartzite Sandstone

Quartzite Sandstone

Breccia

Ironstone

Sea Sediment Jasper

Argillite

Needle Tourmaline

Needle Tourmaline

Calc-Silicate Rock

Calc-Silicate Rock

Color-Change Tourmaline

Color-Change Tourmaline

Opalite (Synthetic Silicon Dioxide (SiO2)) — mineral

Opalite

Synthetic Silicon Dioxide (SiO2)

Rounded gray-brown river cobble (Indeterminate lithology; possibly weathered quartzite, chert, or fine-grained sandstone) — sedimentary

Rounded gray-brown river cobble

Indeterminate lithology; possibly weathered quartzite, chert, or fine-grained sandstone

Polished Ocean Jasper (orbicular jasper) (Siliceous microcrystalline quartz/chalcedony, mainly SiO₂, with iron- and manganese-rich inclusions) — sedimentary

Polished Ocean Jasper (orbicular jasper)

Siliceous microcrystalline quartz/chalcedony, mainly SiO₂, with iron- and manganese-rich inclusions

Agate (Silicon dioxide (SiO2) - Chalcedony variety) — sedimentary

Agate

Silicon dioxide (SiO2) - Chalcedony variety

Banded Iron Formation (BIF) / Jasper (Banded Iron Formation (SiO2 with Fe2O3 and Fe3O4)) — sedimentary

Banded Iron Formation (BIF) / Jasper

Banded Iron Formation (SiO2 with Fe2O3 and Fe3O4)

Quartz Crystal (Rough) (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal (Rough)

Silicon Dioxide (SiO2)

Garnet (specifically Almandine or Pyrope) (Almandine: Fe3Al2(SiO4)3 or Pyrope: Mg3Al2(SiO4)3) — mineral

Garnet (specifically Almandine or Pyrope)

Almandine: Fe3Al2(SiO4)3 or Pyrope: Mg3Al2(SiO4)3

Blue Sapphire (Corundum (Al2O3 - Aluminum Oxide)) — mineral

Blue Sapphire

Corundum (Al2O3 - Aluminum Oxide)

Anthracite Coal (Anthracite) — metamorphic

Anthracite Coal

Anthracite

Pegmatite with Quartz and Muscovite Mica (Granitic Pegmatite (KAl2(AlSi3O10)(OH)2 + SiO2)) — igneous

Pegmatite with Quartz and Muscovite Mica

Granitic Pegmatite (KAl2(AlSi3O10)(OH)2 + SiO2)

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

Anthracite Coal (Anthracite) — metamorphic

Anthracite Coal

Anthracite

Pumice (Pumicite) — igneous

Pumice

Pumicite

Concrete Paver (Artificial Cementitious Rock) (Hydrated Portland Cement Aggregate) — Sedimentary (Synthetic)

Concrete Paver (Artificial Cementitious Rock)

Hydrated Portland Cement Aggregate

Sedimentary (Synthetic)

Bornite (Cu5FeS4) — mineral

Bornite

Cu5FeS4

Quartz (Milky or Smoky) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Smoky)

Silicon Dioxide (SiO2)

Black Tourmaline (Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Black Tourmaline

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Schist (Mica Schist (Metamorphic Rock)) — metamorphic

Schist

Mica Schist (Metamorphic Rock)

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

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Granite (Granite (Felsic Intrusive Igneous Rock)) — igneous

Granite

Granite (Felsic Intrusive Igneous Rock)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Brachiopod Fossil in Limestone (Phylum Brachiopoda embedded in sedimentary rock) — fossil

Brachiopod Fossil in Limestone

Phylum Brachiopoda embedded in sedimentary rock

Uncertain small pale mineral fragment (Indeterminate; possibly calcite or a light-colored feldspar fragment) — mineral

Uncertain small pale mineral fragment

Indeterminate; possibly calcite or a light-colored feldspar fragment

Sapphire (Corundum (Al2O3)) — gemstone

Sapphire

Corundum (Al2O3)

Stilbite (Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O)) — mineral

Stilbite

Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O)

Glauconite (Sandstone or Shale) (Glauconite (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2) — sedimentary

Glauconite (Sandstone or Shale)

Glauconite (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2

Diamond (Faceted) (Carbon (C)) — gemstone

Diamond (Faceted)

Carbon (C)

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

Quartz (Beach Pebble)

Silicon Dioxide (SiO2)

Quartz with Mica (Granitic / Pegmatitic Quartz) (Silicon Dioxide (SiO2) with Mica group minerals) — mineral

Quartz with Mica (Granitic / Pegmatitic Quartz)

Silicon Dioxide (SiO2) with Mica group minerals

Garnet-bearing Schist (Almandine Garnet [Fe3Al2(SiO4)3] in Micaceous Schist) — metamorphic

Garnet-bearing Schist

Almandine Garnet [Fe3Al2(SiO4)3] in Micaceous Schist

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

Cubic Zirconia (as used in jewelry setting)

Zirconium dioxide (ZrO2)

Diamond (in jewelry) (Carbon (C)) — mineral

Diamond (in jewelry)

Carbon (C)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Iron-stained weathered stone (tentative) (Undetermined; possibly weathered iron-rich basalt or concretion) — mineral

Iron-stained weathered stone (tentative)

Undetermined; possibly weathered iron-rich basalt or concretion

Quartz (Tumbled) (Silicon Dioxide (SiO2)) — mineral

Quartz (Tumbled)

Silicon Dioxide (SiO2)

Banded Agate (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Banded Agate

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Pegmatite (Granitic Pegmatite) — igneous

Pegmatite

Granitic Pegmatite

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

Rough Star Sapphire (Corundum)

Al2O3 (Aluminum Oxide)

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)