Rock Identifier

Category

Sedimentary

Browse sedimentary specimens identified by the Rock Identifier community.

Learn about Sedimentary in the encyclopedia

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Argillite

Argillite

Arkose

Arkose

Banded Iron Formation

Banded Iron Formation

Bauxite

Bauxite

Bituminous Coal

Bituminous Coal

Bituminous Shale

Bituminous Shale

Black Shale

Black Shale

Bog Iron

Bog Iron

Breccia

Breccia

Brecciated Jasper

Brecciated Jasper

Bumblebee Jasper

Bumblebee Jasper

Calcarenite

Calcarenite

Chert (or Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (or Jasper)

Microcrystalline Quartz (SiO2)

sedimentary
Carnelian Agate (Silicon Dioxide (SiO2) - variety of Chalcedony) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

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

Orange Calcite

Calcium Carbonate (CaCO3)

mineral
Red Jasper with Quartz (Microcrystalline Quartz (SiO2) with Hematite inclusions) — sedimentary

Red Jasper with Quartz

Microcrystalline Quartz (SiO2) with Hematite inclusions

sedimentary
Chert Geode Nodules (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Geode Nodules

Microcrystalline Quartz (SiO2)

sedimentary
Flint (Chert) (Silicon dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Flint (Chert)

Silicon dioxide (SiO2) - Cryptocrystalline Quartz

sedimentary
Fossiliferous Limestone (Biogenic Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Fossiliferous Limestone

Biogenic Limestone (Calcium Carbonate, CaCO3)

sedimentary
Zebra Jasper (Silicon Dioxide (SiO2)) — metamorphic

Zebra Jasper

Silicon Dioxide (SiO2)

metamorphic
Quartz (Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-Stained)

Silicon Dioxide (SiO2)

mineral
Colorless Quartz (Rhinestone) (Silicon Dioxide (SiO2)) — mineral

Colorless Quartz (Rhinestone)

Silicon Dioxide (SiO2)

mineral
Carnelian (Carnelian (Silicon Dioxide, SiO2)) — mineral

Carnelian

Carnelian (Silicon Dioxide, SiO2)

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

Selenite (Satin Spar)

Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O

mineral
Chalcedony (Silicon Dioxide (SiO2)) — mineral

Chalcedony

Silicon Dioxide (SiO2)

mineral
Amber (Succinate (Fossilized Tree Resin)) — mineraloid

Amber

Succinate (Fossilized Tree Resin)

mineraloid
Druzy Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz Geode

Silicon Dioxide (SiO2)

mineral
Brown Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Brown Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

sedimentary
White Chalcedony (Agate) (Silicon Dioxide (SiO2)) — mineral

White Chalcedony (Agate)

Silicon Dioxide (SiO2)

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

Quartz Geode

Silicon Dioxide (SiO2)

mineral
Quartz (Milky/Common) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

mineral
Chert (or Chalcedony) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (or Chalcedony)

Microcrystalline Quartz (SiO2)

sedimentary
Opal (Hydrated Silica (SiO2·nH2O)) — mineraloid

Opal

Hydrated Silica (SiO2·nH2O)

mineraloid
Agate (Silicon dioxide (SiO2)) — mineral

Agate

Silicon dioxide (SiO2)

mineral
Carnelian Agate (Chalcedony (SiO2) with iron oxide inclusions) — mineral

Carnelian Agate

Chalcedony (SiO2) with iron oxide inclusions

mineral
Kyanite (Blue or Blue-Grey) (Kyanite (Al2SiO5)) — metamorphic mineral

Kyanite (Blue or Blue-Grey)

Kyanite (Al2SiO5)

metamorphic mineral
Chert (Flint) (Microcrystalline silica (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline silica (SiO2)

sedimentary
Leopard Skin Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

Leopard Skin Jasper

Silicon Dioxide (SiO2) with impurities

sedimentary
Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

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

Druzy Quartz

Silicon Dioxide (SiO2)

mineral
Limonite (Ironstone) (Limonite (mixture of hydrated iron oxides, primarily Goethite α-FeO(OH))) — mineral

Limonite (Ironstone)

Limonite (mixture of hydrated iron oxides, primarily Goethite α-FeO(OH))

mineral
Quartz (Pale Rose or Milky Variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Pale Rose or Milky Variety)

Silicon Dioxide (SiO2)

mineral
Graphite (Graphite (C)) — mineral

Graphite

Graphite (C)

mineral
Chert (Jasper variation) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper variation)

Microcrystalline Quartz (SiO2)

sedimentary
Aragonite (Flos Ferri) (Calcium Carbonate (CaCO3)) — mineral

Aragonite (Flos Ferri)

Calcium Carbonate (CaCO3)

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

Iceland Spar (Optical Calcite)

Calcite (Calcium Carbonate, CaCO3)

mineral
Magnetite (Lodestone variety) (Magnetite (Fe3O4)) — mineral

Magnetite (Lodestone variety)

Magnetite (Fe3O4)

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

Chert (Flint)

Silicon Dioxide (SiO2)

sedimentary
Blue Chalcedony (Cryptocrystalline Quartz (SiO2)) — mineral

Blue Chalcedony

Cryptocrystalline Quartz (SiO2)

mineral
River Rock (likely Basalt or Greywacke) (Basalt or Lithic Sandstone) — Igneous or Sedimentary (water-worn)

River Rock (likely Basalt or Greywacke)

Basalt or Lithic Sandstone

Igneous or Sedimentary (water-worn)
Sulfur on matrix (Native Sulfur (S8)) — mineral

Sulfur on matrix

Native Sulfur (S8)

mineral
Carnelian Agate (Silicon Dioxide (SiO2) with iron oxide impurities) — mineral

Carnelian Agate

Silicon Dioxide (SiO2) with iron oxide impurities

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

Quartz (Milky Variant)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral