Rock Identifier

Category

Man Made Composite (Lithified Equivalent Of Sedimentary)

Browse man made composite (lithified equivalent of sedimentary) specimens identified by the Rock Identifier community.

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

Gray Quartz (Tumbled)

Silicon Dioxide (SiO2)

Jasper (Yellow/Brown variety) (Silicon Dioxide (SiO2) with iron oxide impurities) — sedimentary

Jasper (Yellow/Brown variety)

Silicon Dioxide (SiO2) with iron oxide impurities

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Wallboard/Drywall (Gypsum-based) (Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O) — sedimentary

Wallboard/Drywall (Gypsum-based)

Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O

Chalcedony (Chalcedony (SiO₂)) — Mineral

Chalcedony

Chalcedony (SiO₂)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Chert (White-Tan variety) (Silicon dioxide (SiO2) / Microcrystalline Quartz) — sedimentary

Chert (White-Tan variety)

Silicon dioxide (SiO2) / Microcrystalline Quartz

Chert Nodule (River Cobble) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert Nodule (River Cobble)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Zebra Marble (Metamorphosed Alabaster/Limestone (CaCO3)) — metamorphic

Zebra Marble

Metamorphosed Alabaster/Limestone (CaCO3)

Chert (Limestone-based) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Limestone-based)

Silicon Dioxide (SiO2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Marble (Metamorphosed Limestone (principally CaCO3)) — metamorphic

Marble

Metamorphosed Limestone (principally CaCO3)

Petrified Wood (Silicified Wood (primarily SiO2)) — metamorphic

Petrified Wood

Silicified Wood (primarily SiO2)

Biotite Schist (Biotite-rich Schist (K(Mg,Fe)3AlSi3O10(OH,F)2)) — metamorphic

Biotite Schist

Biotite-rich Schist (K(Mg,Fe)3AlSi3O10(OH,F)2)

Jasper (with Manganese or Iron inclusions) (Silicon Dioxide (SiO2)) — sedimentary

Jasper (with Manganese or Iron inclusions)

Silicon Dioxide (SiO2)

Chert (Quartz) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (Quartz)

Microcrystalline Silica (SiO2)

Petrified Wood (Silicified Wood (SiO2 - Quartz/Chalcendony replacing organic matter)) — sedimentary

Petrified Wood

Silicified Wood (SiO2 - Quartz/Chalcendony replacing organic matter)

Chalk / Sedimentary Limestone (Calcium Carbonate (CaCO3) - Biogenic Sedimentary Rock) — sedimentary

Chalk / Sedimentary Limestone

Calcium Carbonate (CaCO3) - Biogenic Sedimentary Rock

Petrified Wood (Silicified Wood (SiO2)) — metamorphic

Petrified Wood

Silicified Wood (SiO2)

Celestite (Celestine) (Strontium Sulfate (SrSO4)) — mineral

Celestite (Celestine)

Strontium Sulfate (SrSO4)

Native Gold (in earring form) (Gold (Au)) — mineral

Native Gold (in earring form)

Gold (Au)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Red Shale (Lutite (primarily composed of clay minerals and iron oxides like hematite, Fe2O3)) — sedimentary

Red Shale

Lutite (primarily composed of clay minerals and iron oxides like hematite, Fe2O3)

Clear Quartz Crystal Cluster (Silicon Dioxide (SiO2)) — mineral

Clear Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Agate (Dyed High-Grade Polished Slice) (Silicon dioxide (SiO2), Chalcedony crystal variety) — mineral

Agate (Dyed High-Grade Polished Slice)

Silicon dioxide (SiO2), Chalcedony crystal variety

Turquoise (Hydrated phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

Hydrated phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O

Quartz Druzy Geode (Silicon Dioxide (SiO2) - Crystalline Variety) — mineral

Quartz Druzy Geode

Silicon Dioxide (SiO2) - Crystalline Variety

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Quartz (specifically Milky/White Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (specifically Milky/White Quartz)

Silicon Dioxide (SiO2)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Fluorite (likely Green Fluorite variant) (Calcium Fluoride (CaF2)) — mineral

Fluorite (likely Green Fluorite variant)

Calcium Fluoride (CaF2)

Banded Gneiss (River Rock/Pebble) (Gneiss (specifically a banded variety often found as a river rock)) — Metamorphic Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Turquoise (Turquoise (Hydrated phosphate of copper and aluminium) - CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

Turquoise (Hydrated phosphate of copper and aluminium) - CuAl6(PO4)4(OH)8·4H2O

Kyanite (Kyanite (Al2SiO5)) — Mineral

Kyanite

Kyanite (Al2SiO5)

Petrified Wood (Silicified wood (Quartz/Chalcedony)) — Sedimentary

Petrified Wood

Silicified wood (Quartz/Chalcedony)

Brown Jasper (Jasper (a cryptocrystalline variety of Quartz, SiO2)) — Mineral, specifically a variety of Quartz

Brown Jasper

Jasper (a cryptocrystalline variety of Quartz, SiO2)

Mineral, specifically a variety of Quartz

Picture Jasper (Silicon Dioxide (SiO2) - Opaque Impure Chalcedony) — sedimentary

Picture Jasper

Silicon Dioxide (SiO2) - Opaque Impure Chalcedony

Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock

Turquoise (Hydrous phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

Hydrous phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O

Petrified Wood (Silicified Wood (primarily Quartz/Chalcedony, formula SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily Quartz/Chalcedony, formula SiO2)

Optical Calcite (Iceland Spar) (Calcium Carbonate (CaCO3)) — mineral

Optical Calcite (Iceland Spar)

Calcium Carbonate (CaCO3)