Rock Identifier

Category

Organic (Non Geological)

Browse organic (non geological) specimens identified by the Rock Identifier community.

Chert (Flint) (Microcrystalline Quartz or Cryptocrystalline Silica (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz or Cryptocrystalline Silica (SiO2)

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

Chert (Flint)

Microcrystalline Silicon Dioxide (SiO2)

sedimentary
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

sedimentary
Amber (Succinite (C10H16O)) — Organic Mineraloid

Amber

Succinite (C10H16O)

Organic Mineraloid
Amber (Succinite (Formula: C10H16O)) — Organic Mineraloid

Amber

Succinite (Formula: C10H16O)

Organic Mineraloid
Amber (Butterscotch/Egg Yolk Variety) (Succinite (Approx. C10H16O)) — Organic Gemstone

Amber (Butterscotch/Egg Yolk Variety)

Succinite (Approx. C10H16O)

Organic Gemstone
Quartz Geode (Crystalline Silicon Dioxide (SiO2) in sedimentary/volcanic host) — mineral

Quartz Geode

Crystalline Silicon Dioxide (SiO2) in sedimentary/volcanic host

mineral
Black Obsidian (Obsidian (Amorphous volcanic glass, SiO2)) — igneous

Black Obsidian

Obsidian (Amorphous volcanic glass, SiO2)

igneous
Chert (Flint variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint variety)

Silicon Dioxide (SiO2)

sedimentary
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

mineral
Chert (Light Variety) (Sedimentary cryptocrystalline quartz (SiO2)) — sedimentary

Chert (Light Variety)

Sedimentary cryptocrystalline quartz (SiO2)

sedimentary
Fossiliferous Limestone (Calcite (CaCO3) with Bioclastic inclusions) — sedimentary

Fossiliferous Limestone

Calcite (CaCO3) with Bioclastic inclusions

sedimentary
Chert / Flint (Chert (Cryptocrystalline Quartz, SiO2)) — sedimentary

Chert / Flint

Chert (Cryptocrystalline Quartz, SiO2)

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

Chert (Yellow Jasper)

Microcrystalline Quartz (SiO2)

sedimentary
Black Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

Black Jasper

Silicon Dioxide (SiO2) with impurities

sedimentary
Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

igneous
Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

metamorphic
Painted Sandstone (Sandstone (clastic sedimentary rock) with acrylic/artistic coating) — sedimentary

Painted Sandstone

Sandstone (clastic sedimentary rock) with acrylic/artistic coating

sedimentary
Obsidian (Volcanic Glass (predominantly SiO2)) — igneous

Obsidian

Volcanic Glass (predominantly SiO2)

igneous
Slag Glass (Vitreous Silicate Residue) — industrial byproduct (anthropogenic rock)

Slag Glass

Vitreous Silicate Residue

industrial byproduct (anthropogenic rock)
Fossil Coral (Cnidaria Anthozoa (Fossilized)) — sedimentary

Fossil Coral

Cnidaria Anthozoa (Fossilized)

sedimentary
Siltstone (Siltstone (composed of microscopic quartz and clay minerals)) — sedimentary

Siltstone

Siltstone (composed of microscopic quartz and clay minerals)

sedimentary
Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

metamorphic
Slag (Glassy silicate byproduct (anthropogenic material)) — industrial byproduct

Slag

Glassy silicate byproduct (anthropogenic material)

industrial byproduct
Common Opal (Potch) (Opal (Hydrated silica, SiO2·nH2O)) — mineral

Common Opal (Potch)

Opal (Hydrated silica, SiO2·nH2O)

mineral
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Siltstone with Fossil Cast (Sedimentary Rock (Siltstone / Fine-grained Sandstone)) — sedimentary

Siltstone with Fossil Cast

Sedimentary Rock (Siltstone / Fine-grained Sandstone)

sedimentary
Obsidian (Volcanic Glass (SiO2 + impurities)) — igneous

Obsidian

Volcanic Glass (SiO2 + impurities)

igneous
Obsidian (Volcanic Glass (Amorphous Silicon Dioxide , SiO2)) — igneous

Obsidian

Volcanic Glass (Amorphous Silicon Dioxide , SiO2)

igneous
Glauconite (Greensand Articulated Sandstone) (Glauconite ((K, Na)(Fe, Al, Mg)2(Si, Al)4O10(OH)2)) — sedimentary

Glauconite (Greensand Articulated Sandstone)

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

sedimentary
Seashell Fossil (Gastropoda fossil) — fossil

Seashell Fossil

Gastropoda fossil

fossil
Sandstone with Liesegang Rings (Liesegang-banded Sandstone) — sedimentary

Sandstone with Liesegang Rings

Liesegang-banded Sandstone

sedimentary
Pyrite (Pyrite (Iron sulfide, FeS₂)) — mineral

Pyrite

Pyrite (Iron sulfide, FeS₂)

mineral
Obsidian (Volcanic Glass (Amorphous Silicon Dioxide)) — igneous

Obsidian

Volcanic Glass (Amorphous Silicon Dioxide)

igneous
Sea Shell (Mollusk Shell) (Calcium Carbonate (Aragonite/Calcite)) — fossil

Sea Shell (Mollusk Shell)

Calcium Carbonate (Aragonite/Calcite)

fossil
Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

metamorphic
Fossilized Oyster Shell (Ostreidae (Calcium Carbonate - CaCO3)) — fossil

Fossilized Oyster Shell

Ostreidae (Calcium Carbonate - CaCO3)

fossil
Gold Ore in Matrix (Native Gold (Au) in Quartz/Limonite host rock) — mineral

Gold Ore in Matrix

Native Gold (Au) in Quartz/Limonite host rock

mineral
Amber (Succinite (Fossilized Resin C10H16O)) — Organic Mineraloid

Amber

Succinite (Fossilized Resin C10H16O)

Organic Mineraloid
N/A (Non-Geological Object) — N/A

N/A (Non-Geological Object)

N/A
Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

metamorphic