Rock Identifier

Category

Anthropogenic Sedimentary Style Organic Solid

Browse anthropogenic sedimentary style organic solid specimens identified by the Rock Identifier community.

Learn about Anthropogenic Sedimentary Style Organic Solid in the encyclopedia

Sapropel

Bituminous Shale

Bituminous Shale

Oil Shale

Black Shale

Ferruginous Conglomerate (or Iron-Rich Concrete/Slag) (Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)) — sedimentary

Ferruginous Conglomerate (or Iron-Rich Concrete/Slag)

Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

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

Fossiliferous Limestone

Biogenic Limestone (Calcium Carbonate, CaCO3)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Quartz Geode with Goethite/Hematite (Silicon Dioxide (SiO2) with Iron Oxides) — mineral

Quartz Geode with Goethite/Hematite

Silicon Dioxide (SiO2) with Iron Oxides

Conglomerate (Conglomerate rock) — sedimentary

Conglomerate

Conglomerate rock

Sulfur (with possible Cullet Glass or Slag imitation) (Native Sulfur (S8)) — mineral

Sulfur (with possible Cullet Glass or Slag imitation)

Native Sulfur (S8)

Orbicular Jasper (Ocean Jasper variant) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Orbicular Jasper (Ocean Jasper variant)

Silicon Dioxide (SiO2) with iron oxide inclusions

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Quartzite Pebble (Meta-quartzite) — metamorphic

Quartzite Pebble

Meta-quartzite

Red Jasper (Silicon dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Agate Geode (Unopened) (Cryptocrystalline Quartz (SiO2) with Chalcedony) — mineral

Agate Geode (Unopened)

Cryptocrystalline Quartz (SiO2) with Chalcedony

Garnet Schist (Almandine Garnet-bearing Mica Schist) — metamorphic

Garnet Schist

Almandine Garnet-bearing Mica Schist

Red Jasper (Silicon Dioxide (SiO2)) — sedimentary

Red Jasper

Silicon Dioxide (SiO2)

Conglomerate (Conglomerate (clastic sedimentary rock type)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock type)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Quartz Geode Fragment (Silicon Dioxide (SiO2) in a Sedimentary Host) — mineral

Quartz Geode Fragment

Silicon Dioxide (SiO2) in a Sedimentary Host

Pink Dyed Agate (Silicon Dioxide (SiO2) with artificial pigment) — sedimentary

Pink Dyed Agate

Silicon Dioxide (SiO2) with artificial pigment

Quartz Geode (Cracked) (Quartz (Silicon Dioxide, SiO2)) — sedimentary

Quartz Geode (Cracked)

Quartz (Silicon Dioxide, SiO2)

Marcasite Concretion (Propeller/Sand Dollar shape) (Marcasite (FeS2)) — mineral

Marcasite Concretion (Propeller/Sand Dollar shape)

Marcasite (FeS2)

Quartz Geode (Unbroken) (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode (Unbroken)

Silicon Dioxide (SiO2)

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

Quartz Geode

Silicon Dioxide (SiO2) in a concretion

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

Petrified Wood

Silicified Wood (primarily SiO2)

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

Quartz Geode or Vuggy Quartz

Silicon Dioxide (SiO2)

Boulder Opal (Amorphous Hydrous Silica (SiO2·nH2O)) — mineral

Boulder Opal

Amorphous Hydrous Silica (SiO2·nH2O)

Geode (Quartz / Chalcedony Geode) (SiO2 (Silicon Dioxide)) — sedimentary

Geode (Quartz / Chalcedony Geode)

SiO2 (Silicon Dioxide)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartz Geode (Crystalline Silicon Dioxide (SiO2) within a geode structure) — mineral

Quartz Geode

Crystalline Silicon Dioxide (SiO2) within a geode structure

Feldspar-rich Quartzite (Meta-arkose (Quartz-Feldspar Quartzite)) — metamorphic

Feldspar-rich Quartzite

Meta-arkose (Quartz-Feldspar Quartzite)

Grey Chalcedony (Tumbled Moon) (Microcrystalline Quartz (SiO2)) — mineral

Grey Chalcedony (Tumbled Moon)

Microcrystalline Quartz (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Sandstone (Pebble) (Sandstone (SiO2 dominated with minor feldspar/clay)) — sedimentary

Sandstone (Pebble)

Sandstone (SiO2 dominated with minor feldspar/clay)

Milky Quartz Nodule / Geode precursor (Silicon Dioxide (SiO2)) — mineral

Milky Quartz Nodule / Geode precursor

Silicon Dioxide (SiO2)

Geode or Concretion (Silica-based Concretion / Quartz Geode) — sedimentary

Geode or Concretion

Silica-based Concretion / Quartz Geode

Quartz Geode (Silicon Dioxide (SiO2) within a geode) — mineral

Quartz Geode

Silicon Dioxide (SiO2) within a geode

Petrified Wood (Silicified wood (Quartz/Chalcedony replacement of cellulose)) — fossil

Petrified Wood

Silicified wood (Quartz/Chalcedony replacement of cellulose)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Green Jasper (Silicon Dioxide (SiO2) with iron silicate inclusions) — sedimentary

Green Jasper

Silicon Dioxide (SiO2) with iron silicate inclusions

Coquina (Bioclastic Limestone (composed primarily of CaCO3)) — sedimentary

Coquina

Bioclastic Limestone (composed primarily of CaCO3)

Chert (Mookaite Jasper style) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Mookaite Jasper style)

Microcrystalline Quartz (SiO2)

Fossilized Coral (Petoskey-style) (Hexagonaria percarinata (Fossilized Rugose Coral)) — sedimentary

Fossilized Coral (Petoskey-style)

Hexagonaria percarinata (Fossilized Rugose Coral)