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

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

Sandstone (Quartzose)

Arenite (primarily SiO2)

Ruby (Corundum (Aluminum Oxide with Chromium traces), Al2O3:Cr) — mineral

Ruby

Corundum (Aluminum Oxide with Chromium traces), Al2O3:Cr

Red Garnet (Pyrope-Almandine series (Mg3Al2(SiO4)3 to Fe3Al2(SiO4)3)) — mineral

Red Garnet

Pyrope-Almandine series (Mg3Al2(SiO4)3 to Fe3Al2(SiO4)3)

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

Quartz Geode Fragment (Silicon Dioxide (SiO2)) — mineral

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Fossiliferous Limestone with Rugose Coral (Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)) — sedimentary

Fossiliferous Limestone with Rugose Coral

Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)

Chert (Jasper/Flint variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Silicon Dioxide (SiO2)

Concretion (Sedimentary Concretion (e.g., Siderite or Ironstone)) — sedimentary

Concretion

Sedimentary Concretion (e.g., Siderite or Ironstone)

Flint (Chert (SiO2)) — sedimentary

Flint

Chert (SiO2)

Coquina (Coquina (Limestone variant)) — sedimentary

Coquina

Coquina (Limestone variant)

Blue magnesite beads (Magnesite (MgCO₃), likely stabilized or dyed; brown veining may reflect matrix or iron oxides) — mineral

Blue magnesite beads

Magnesite (MgCO₃), likely stabilized or dyed; brown veining may reflect matrix or iron oxides

Garnet-Bearing Gneiss (Almandine-Garnet Gneiss) — metamorphic

Garnet-Bearing Gneiss

Almandine-Garnet Gneiss

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Red Quartzite (Quartzite (primarily SiO2 with hematite inclusions)) — metamorphic

Red Quartzite

Quartzite (primarily SiO2 with hematite inclusions)

Geode (unopened nodule) (Silicon Dioxide (SiO2) Nodule) — sedimentary

Geode (unopened nodule)

Silicon Dioxide (SiO2) Nodule

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Milky Quartz (Gold-bearing Prospecting Specimen) (Silicon Dioxide (SiO2)) — mineral

Milky Quartz (Gold-bearing Prospecting Specimen)

Silicon Dioxide (SiO2)

Sandstone (likely Arkosic or Lithic Sandstone) (Arenite (composed primarily of SiO2 with various lithic fragments)) — sedimentary

Sandstone (likely Arkosic or Lithic Sandstone)

Arenite (composed primarily of SiO2 with various lithic fragments)

Sandstone (Arenite (SiO2 based with primary clasts 0.0625 to 2 mm)) — sedimentary

Sandstone

Arenite (SiO2 based with primary clasts 0.0625 to 2 mm)

Chert (Pebble) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Pebble)

Silicon Dioxide (SiO2)

Banded Gneiss (Gneiss (SiO2 enriched metamorphic rock)) — metamorphic

Banded Gneiss

Gneiss (SiO2 enriched metamorphic rock)

Gneiss (or Granite Gneiss) (Metamorphic rock rich in quartz, feldspar, and biotite/amphibole) — metamorphic

Gneiss (or Granite Gneiss)

Metamorphic rock rich in quartz, feldspar, and biotite/amphibole

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Potassium Feldspar (K-Feldspar (Orthoclase/Microcline) KAlSi3O8) — mineral

Potassium Feldspar

K-Feldspar (Orthoclase/Microcline) KAlSi3O8

Chert / Flint (Silicon dioxide (SiO2)) — sedimentary

Chert / Flint

Silicon dioxide (SiO2)

Chert (variations include Flint/Chalcedony) (Chert (SiO2 - Silicon Dioxide)) — sedimentary

Chert (variations include Flint/Chalcedony)

Chert (SiO2 - Silicon Dioxide)

Arsenic (Native) (Arsenic (As)) — mineral

Arsenic (Native)

Arsenic (As)

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

Blue Sapphire Crystal (Rough)

Corundum (Aluminum Oxide, Al2O3)

Coal (Bituminous or Anthracite) (Carbonaceous Sedimentary Rock) — sedimentary

Coal (Bituminous or Anthracite)

Carbonaceous Sedimentary Rock

Kyanite (Green and Blue varieties) (Kyanite (Al2SiO5)) — mineral

Kyanite (Green and Blue varieties)

Kyanite (Al2SiO5)

Pink Quartz / Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Pink Quartz / Rose Quartz

Silicon Dioxide (SiO2)

Diamond (faceted) (Diamond (Pure Carbon, C)) — mineral

Diamond (faceted)

Diamond (Pure Carbon, C)

Sandstone (Arenite (primarily SiO2 with trace Fe2O3)) — sedimentary

Sandstone

Arenite (primarily SiO2 with trace Fe2O3)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

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

Anthracite Coal

Anthracite (Carbon-rich mineraloid)

Desert Rose (Gypsum Rose) (Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O) — mineral

Desert Rose (Gypsum Rose)

Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O

Yellow Quartz (Citrine or Quartz Crystal with Iron Inclusions) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine or Quartz Crystal with Iron Inclusions)

Silicon Dioxide (SiO2)

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

Sandstone

Arenite (composed primarily of SiO2)

Satin Spar (Selenite) (Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)) — mineral

Satin Spar (Selenite)

Gypsum (Calcium Sulfate Dihydrate, CaSO4·2H2O)

Sandstone or Mudstone (Sedimentary Rock (Sandstone/Mudstone)) — sedimentary

Sandstone or Mudstone

Sedimentary Rock (Sandstone/Mudstone)

Quartz Geode (Silicon Dioxide (SiO2) in a sedimentary host) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2) in a sedimentary host