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

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Chalcedony (Agate and Carnelian varieties) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate and Carnelian varieties)

Silicon Dioxide (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with Hematite impurities) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Red Jasper (Tumbled) (Silicon Dioxide (SiO2)) — sedimentary

Red Jasper (Tumbled)

Silicon Dioxide (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Quartz Geode (Crystalline Silicon Dioxide (SiO2) in a Geodic structure) — mineral

Quartz Geode

Crystalline Silicon Dioxide (SiO2) in a Geodic structure

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Petrified Wood (Silicified Wood) — fossil

Petrified Wood

Silicified Wood

Likely bituminous coal (Coal, predominantly carbon-rich organic matter; exact rank cannot be confirmed from the image) — sedimentary

Likely bituminous coal

Coal, predominantly carbon-rich organic matter; exact rank cannot be confirmed from the image

Yellow Agate (Chalcedony) (Silicon Dioxide (SiO2)) — sedimentary

Yellow Agate (Chalcedony)

Silicon Dioxide (SiO2)

Geode (Unopened) (Siliceous Concretion / Geode) — sedimentary

Geode (Unopened)

Siliceous Concretion / Geode

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Chert breccia (Sedimentary Breccia (Microcrystalline Quartz)) — sedimentary

Chert breccia

Sedimentary Breccia (Microcrystalline Quartz)

Chert (Agatized/Chalcedony variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Agatized/Chalcedony variety)

Microcrystalline Quartz (SiO2)

Ambergris (Physeter macrocephalus excreta (Ambergris)) — mineraloid / organic geological find

Ambergris

Physeter macrocephalus excreta (Ambergris)

mineraloid / organic geological find

Fossiliferous limestone (Bioclastic limestone, primarily calcite (CaCO₃)) — sedimentary

Fossiliferous limestone

Bioclastic limestone, primarily calcite (CaCO₃)

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

Sandstone

Arenite (SiO2 based with various mineral cements)

Jasper (Willow Creek/Desert style) (Silicon Dioxide (SiO2) with iron and clay impurities) — sedimentary

Jasper (Willow Creek/Desert style)

Silicon Dioxide (SiO2) with iron and clay impurities

Geode (Unopened) (Quartz Geode (SiO2) / Chalcedony Concretion) — mineral

Geode (Unopened)

Quartz Geode (SiO2) / Chalcedony Concretion

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

Geode (Quartz / Chalcedony Geode)

Silicon Dioxide (SiO2) - Quartz / Chalcedony

Anthracite coal (Anthracite; predominantly carbon (C), with minor mineral impurities) — sedimentary

Anthracite coal

Anthracite; predominantly carbon (C), with minor mineral impurities

Agate Geode / Nodular Chalcedony (Silicon Dioxide (SiO2) with impurities) — mineral

Agate Geode / Nodular Chalcedony

Silicon Dioxide (SiO2) with impurities

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

Opal

Hydrated Silica (SiO2·nH2O)

Banded Gneiss (Gneiss (High-grade regional metamorphic rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Fossiliferous Sandstone (Sedimentary rock containing invertebrate fossils) — fossil

Fossiliferous Sandstone

Sedimentary rock containing invertebrate fossils

Concrete Fragment (Hardened Portland cement and mineral aggregate) — sedimentary (anthropogenic)

Concrete Fragment

Hardened Portland cement and mineral aggregate

sedimentary (anthropogenic)

Polished fossiliferous limestone (Bioclastic limestone, commonly called fossil limestone or marble-like limestone) — sedimentary

Polished fossiliferous limestone

Bioclastic limestone, commonly called fossil limestone or marble-like limestone

Quartz geode (Microcrystalline quartz and crystalline quartz (SiO₂), likely in a weathered volcanic or sedimentary host) — mineral

Quartz geode

Microcrystalline quartz and crystalline quartz (SiO₂), likely in a weathered volcanic or sedimentary host

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

Petrified Wood

Silicified Wood (primarily SiO2)

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Chert (Green Fossilized Algae or Jasper) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Green Fossilized Algae or Jasper)

Silicon Dioxide (SiO2)

Native Sulfur (Sulfur (S8)) — mineral

Native Sulfur

Sulfur (S8)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Fossil Shark Tooth (Carcharodon carcharias (modern/recent) or similar Lamniform fossil) — fossil

Fossil Shark Tooth

Carcharodon carcharias (modern/recent) or similar Lamniform fossil

Ocean Jasper (Orbicular Jasper) (Silicon Dioxide (SiO2) with iron and other impurities) — sedimentary

Ocean Jasper (Orbicular Jasper)

Silicon Dioxide (SiO2) with iron and other impurities

Chalcedony Geode Fragment (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chalcedony Geode Fragment

Silicon Dioxide (SiO2) - Microcrystalline Quartz