Rock Identifier

Category

Sedimentary Like (Industrial Composite)

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

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Sandstone (Arenite (SiO2 based with various mineral cements)) — sedimentary

Sandstone

Arenite (SiO2 based with various mineral cements)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Sandstone

Arenite (composed primarily of SiO2)

Petrified Wood (Silicified Wood (primarily SiO₂ - Silicon Dioxide)) — metamorphic

Petrified Wood

Silicified Wood (primarily SiO₂ - Silicon Dioxide)

Fossiliferous Limestone (Gritstone/Marl) (CaCO3 (Calcium Carbonate) with Fossil Inclusions) — sedimentary

Fossiliferous Limestone (Gritstone/Marl)

CaCO3 (Calcium Carbonate) with Fossil Inclusions

Yellow Jasper (Silicon Dioxide (SiO2) - variety of Chalcedony) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) - variety of Chalcedony

Petrified Wood (Silicified wood (primarily Silicon Dioxide, SiO2)) — sedimentary

Petrified Wood

Silicified wood (primarily Silicon Dioxide, SiO2)

Puddingstone (Conglomerate (typically quartz-rich or jasper-rich)) — sedimentary

Puddingstone

Conglomerate (typically quartz-rich or jasper-rich)

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

Petrified Wood

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

Gneiss (Metamorphic Gneiss) — metamorphic

Gneiss

Metamorphic Gneiss

Chert (Channery Chert (Microcrystalline Quartz)) — sedimentary

Chert

Channery Chert (Microcrystalline Quartz)

Chert (and Fossilized Brachiopod shell) (Sedimentary Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (and Fossilized Brachiopod shell)

Sedimentary Cryptocrystalline Quartz (SiO2)

Sandstone (likely Arkose) (Arenite (Feldspathic Sandstone / Arkose)) — sedimentary

Sandstone (likely Arkose)

Arenite (Feldspathic Sandstone / Arkose)

Limestone with Calcite (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone with Calcite

Sedimentary Calcium Carbonate (CaCO3)

Standing Liberty Quarter (Silver Specimen) (Native Silver alloy (Ag with Cu traces)) — mineral

Standing Liberty Quarter (Silver Specimen)

Native Silver alloy (Ag with Cu traces)

Opaline Glass (Opalite) (Synthetic Silicon Dioxide Glass) — Mineraloid (Man-made)

Opaline Glass (Opalite)

Synthetic Silicon Dioxide Glass

Mineraloid (Man-made)

Sandstone (Quartz-rich) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartz-rich)

Arenite (primarily SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Dalmatian Stone (Dalmatian Jasper (Aplitic Perthite)) — igneous

Dalmatian Stone

Dalmatian Jasper (Aplitic Perthite)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Botryoidal Hematite (Hematite (Iron(III) oxide, Fe2O3)) — mineral

Botryoidal Hematite

Hematite (Iron(III) oxide, Fe2O3)

Sandstone (Ferruginous) (Arenite with Iron Oxide staining (Fe2O3)) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron Oxide staining (Fe2O3)

Polygenetic Conglomerate (or Breccia) (Clastic Sedimentary Rock) — sedimentary

Polygenetic Conglomerate (or Breccia)

Clastic Sedimentary Rock

Calamites Fossill (Lepidodendrales) (Calamites sp. (Family Calamitaceae)) — sedimentary

Calamites Fossill (Lepidodendrales)

Calamites sp. (Family Calamitaceae)

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

Quartz (Small Fragment)

Silicon Dioxide (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Quartz Geode or Nodular Quartz (Silicon Dioxide (SiO2) in Host Matrix) — mineral

Quartz Geode or Nodular Quartz

Silicon Dioxide (SiO2) in Host Matrix

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

Sandstone (likely Quartzose Sandstone)

Arenite (primarily SiO2)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Muscovite Schist with Quartz (Mica Schist (KAl2(AlSi3O10)(OH)2 with SiO2)) — metamorphic

Muscovite Schist with Quartz

Mica Schist (KAl2(AlSi3O10)(OH)2 with SiO2)

Quartz (Chert/Chalcedony variant) (Silicon dioxide (SiO2)) — mineral

Quartz (Chert/Chalcedony variant)

Silicon dioxide (SiO2)

Sandstone (Water-worn Pebble) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (Water-worn Pebble)

Clastic Sedimentary Rock (primarily SiO2)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Chrysanthemum Stone (Chrysanthemum Stone (Calcite/Celestite/Strontianite in Limestone)) — sedimentary

Chrysanthemum Stone

Chrysanthemum Stone (Calcite/Celestite/Strontianite in Limestone)

Glauconite (Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2) — mineral

Glauconite

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

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Sandstone (Quartzose Sandstone Pebble)

Arenite (primarily SiO2)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)