Rock Identifier

Category

Organic (Non Geological)

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

Chert (with Iron Staining) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (with Iron Staining)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Pink Opal (Hydrated Silicon Dioxide (SiO2 · nH2O)) — mineraloid

Pink Opal

Hydrated Silicon Dioxide (SiO2 · nH2O)

Barite (Desert Diamond) (Barite (Barium Sulfate, BaSO4)) — mineral

Barite (Desert Diamond)

Barite (Barium Sulfate, BaSO4)

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

Chert (variant Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Amber (Succinite (organic gemstone, approx. C10H16O)) — fossil

Amber

Succinite (organic gemstone, approx. C10H16O)

Limestone (specifically fossiliferous/skeletal limestone) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (specifically fossiliferous/skeletal limestone)

Calcium Carbonate (CaCO3)

Chert (potentially Jasper/Common Opal mixture) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (potentially Jasper/Common Opal mixture)

Microcrystalline Quartz (SiO2)

Anthracite Coal (Anthracite (Carbon-based organic sedimentary/metamorphic rock)) — metamorphic

Anthracite Coal

Anthracite (Carbon-based organic sedimentary/metamorphic rock)

Black polished stone beads, likely black onyx or agate (Likely chalcedony (microcrystalline quartz, SiO₂); exact material cannot be confirmed from the image) — gemstone

Black polished stone beads, likely black onyx or agate

Likely chalcedony (microcrystalline quartz, SiO₂); exact material cannot be confirmed from the image

Amber (Succinite (Fossilized Tree Resin), C10H16O) — Organic Mineraloid

Amber

Succinite (Fossilized Tree Resin), C10H16O

Organic Mineraloid

N/A - Non-Geological Item — not a rock/mineral

N/A - Non-Geological Item

not a rock/mineral

Soil with Mineral Detritus and Quartz Fragments (Regolith / Silicate Mineral Aggregate) — sedimentary

Soil with Mineral Detritus and Quartz Fragments

Regolith / Silicate Mineral Aggregate

Amber (Succinite (specifically for Baltic amber); Complex mixture of organic compounds (C10H16O)) — Organic Mineraloid

Amber

Succinite (specifically for Baltic amber); Complex mixture of organic compounds (C10H16O)

Organic Mineraloid

Baltic Amber (Succinite (Fossilized Resin)) — fossil

Baltic Amber

Succinite (Fossilized Resin)

Amber (Cherry or Red variety) (Succinite (with various trace amounts of organic compounds)) — Organic Gemstone (not a rock)

Amber (Cherry or Red variety)

Succinite (with various trace amounts of organic compounds)

Organic Gemstone (not a rock)

Bituminous Coal (Organic-rich sedimentary rock (Complex hydrocarbons)) — sedimentary

Bituminous Coal

Organic-rich sedimentary rock (Complex hydrocarbons)

Weathered dark mineral/rock fragment (Indeterminate; possibly iron-rich basalt, slag, or a sulfide-bearing mineral) — mineral

Weathered dark mineral/rock fragment

Indeterminate; possibly iron-rich basalt, slag, or a sulfide-bearing mineral

Natural Freshwater Pearl (Calcium Carbonate (Aragonite and Calcite), CaCO3) — gemstone

Natural Freshwater Pearl

Calcium Carbonate (Aragonite and Calcite), CaCO3

Coal (Bituminous or Anthracite) (Carbonaceous Sedimentary Rock) — sedimentary

Coal (Bituminous or Anthracite)

Carbonaceous Sedimentary Rock

Amber (Succinite (specifically for Baltic amber; fossilized tree resin)) — Organic (Sedimentary-associated)

Amber

Succinite (specifically for Baltic amber; fossilized tree resin)

Organic (Sedimentary-associated)

Small weathered mineral/rock fragment (Indeterminate; possibly quartz-bearing feldspathic rock or calcite-rich specimen) — mineral

Small weathered mineral/rock fragment

Indeterminate; possibly quartz-bearing feldspathic rock or calcite-rich specimen

Dark brown flint/chert fragment (Microcrystalline quartz (SiO₂), often with minor chalcedony and impurities) — sedimentary

Dark brown flint/chert fragment

Microcrystalline quartz (SiO₂), often with minor chalcedony and impurities

Likely rough amber (Amber (fossilized tree resin; organic mineraloid)) — gemstone

Likely rough amber

Amber (fossilized tree resin; organic mineraloid)

Likely small metallic meteorite fragments (Unclassified iron or stony-iron meteorite; mineralogy cannot be confirmed from the image) — meteorite

Likely small metallic meteorite fragments

Unclassified iron or stony-iron meteorite; mineralogy cannot be confirmed from the image

Amber (Succinite (fossilized resin)) — Organic Mineraloid

Amber

Succinite (fossilized resin)

Organic Mineraloid

Amber (Resinite (Succinite if from the Baltic); Chemical Formula: C10H16O (approximate)) — Organic Diamond/Gemstone (often associated with Sedimentary sequences)

Amber

Resinite (Succinite if from the Baltic); Chemical Formula: C10H16O (approximate)

Organic Diamond/Gemstone (often associated with Sedimentary sequences)

Amber (Succinite (fossilized tree resin)) — mineral

Amber

Succinite (fossilized tree resin)

Black Pearl (Tahitian Pearl) (Aragonite / Calcite (CaCO3) with Conchiolin) — mineral

Black Pearl (Tahitian Pearl)

Aragonite / Calcite (CaCO3) with Conchiolin

Amber (Succinite (C10H16O)) — gemstone

Amber

Succinite (C10H16O)

Borosilicate Glass (Manufactured) (SiO2 + B2O3 (Silicon dioxide and Boron trioxide)) — Synthetic/Amorphous Solid

Borosilicate Glass (Manufactured)

SiO2 + B2O3 (Silicon dioxide and Boron trioxide)

Synthetic/Amorphous Solid

Red Coral (Corallium rubrum (Calcium Carbonate, CaCO3 with Carotenoid pigments)) — Mineraloid (Organic Gemstone)

Red Coral

Corallium rubrum (Calcium Carbonate, CaCO3 with Carotenoid pigments)

Mineraloid (Organic Gemstone)

One Pound Coin (UK) (Nickel-Brass Alloy (Cu-Zn-Ni)) — mineral

One Pound Coin (UK)

Nickel-Brass Alloy (Cu-Zn-Ni)

Amber (Succinite (fossilized resin)) — mineral

Amber

Succinite (fossilized resin)

Weathered dark flint (chert) pebble (Microcrystalline quartz (SiO₂), commonly called flint or chert) — sedimentary

Weathered dark flint (chert) pebble

Microcrystalline quartz (SiO₂), commonly called flint or chert

Amber (Succinite (a fossilized organic resin containing succinic acid)) — mineraloid

Amber

Succinite (a fossilized organic resin containing succinic acid)

Shungite (Non-crystalline carbon (similar to anthracite coal or meta-anthracite)) — metamorphic

Shungite

Non-crystalline carbon (similar to anthracite coal or meta-anthracite)

Shale (Shale (clay-sized silicate minerals)) — sedimentary

Shale

Shale (clay-sized silicate minerals)

Possible fossil tooth or bone fragment (Indeterminate fossilized vertebrate material; species cannot be identified reliably from this image) — fossil

Possible fossil tooth or bone fragment

Indeterminate fossilized vertebrate material; species cannot be identified reliably from this image

Weathered mica-rich schist (Muscovite/biotite schist, likely quartz-bearing) — metamorphic

Weathered mica-rich schist

Muscovite/biotite schist, likely quartz-bearing

Unknown white fragment (Unknown) — unknown

Unknown white fragment

Unknown

Amber (Fossilized Tree Resin (C10H16O)) — gemstone

Amber

Fossilized Tree Resin (C10H16O)

Synthetic Costume Accessory (Non-Geological) (Polyester and Acrylic Fiber (Anthropogenic polymer)) — Synthetic / Man-made textile

Synthetic Costume Accessory (Non-Geological)

Polyester and Acrylic Fiber (Anthropogenic polymer)

Synthetic / Man-made textile