Rock Identifier

Category

Organic Gemstone

Browse organic gemstone specimens identified by the Rock Identifier community.

Learn about Organic Gemstone in the encyclopedia

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Jet

Jet

Sapropel

Sapropel

Red Garnet

Red Garnet

Bituminous Shale

Bituminous Shale

Black Shale

Black Shale

Petrified Wood

Petrified Wood

Amber

Amber

Peat

Peat

Oil Shale

Oil Shale

Pearl

Pearl

Lizard Skin Jasper

Lizard Skin Jasper

Rhodonite

Rhodonite

Natural Pearl (Calcium carbonate (primarily Aragonite and Conchiolin), CaCO3) — mineral

Natural Pearl

Calcium carbonate (primarily Aragonite and Conchiolin), CaCO3

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

Banded Chert

Microcrystalline Quartz (SiO2)

sedimentary
Amber (Succinite (fossilized resin)) — mineral

Amber

Succinite (fossilized resin)

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

Petrified Wood

Silicified Wood (SiO2)

sedimentary
Bamboo Leaf Jasper (Silicified Siltstone or Jasper (SiO2)) — sedimentary

Bamboo Leaf Jasper

Silicified Siltstone or Jasper (SiO2)

sedimentary
Amber (Succinite (C10H16O)) — gemstone

Amber

Succinite (C10H16O)

gemstone
Pearl (Calcium Carbonate (primarily Aragonite and Calcite), CaCO3) — mineral

Pearl

Calcium Carbonate (primarily Aragonite and Calcite), CaCO3

mineral
Amber (Succinite (Fossilized Tree Resin, C10H16O)) — gemstone

Amber

Succinite (Fossilized Tree Resin, C10H16O)

gemstone
Dendritic Agate (Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions) — mineral

Dendritic Agate

Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions

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

Red Jasper

Silicon Dioxide (SiO2)

sedimentary
Blue Apatite (Apatite group (Ca5(PO4)3(F,Cl,OH))) — mineral

Blue Apatite

Apatite group (Ca5(PO4)3(F,Cl,OH))

mineral
Pearl (Calcium carbonate (CaCO3) in the form of Aragonite or Calcite) — mineral

Pearl

Calcium carbonate (CaCO3) in the form of Aragonite or Calcite

mineral
Amber (Succinates (Organic compound: C10H16O)) — mineraloid

Amber

Succinates (Organic compound: C10H16O)

mineraloid
Pink Opal (Hydrated silica (SiO2 "n H2O)) — mineral

Pink Opal

Hydrated silica (SiO2 "n H2O)

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

Amber

Succinite (C10H16O)

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

Amber

Succinite (Fossilized Tree Resin), C10H16O

Organic Mineraloid
Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

sedimentary
Red Coral (Corallium rubrum) — mineral

Red Coral

Corallium rubrum

mineral
Pearl (Calcium Carbonate (Aragonite) with Conchiolin; formula: CaCO3) — mineral

Pearl

Calcium Carbonate (Aragonite) with Conchiolin; formula: CaCO3

mineral
Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

sedimentary
Amber (Succinite) — mineral

Amber

Succinite

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

Chert (Jasper/Flint)

Microcrystalline Quartz (SiO2)

sedimentary
Amber (Succinicum (Organic polymer, largely C10H16O)) — Organic Mineral

Amber

Succinicum (Organic polymer, largely C10H16O)

Organic Mineral
Chert (Jasper) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper)

Silicon Dioxide (SiO2)

sedimentary
Amber (Succinite (fossilized resin)) — mineral

Amber

Succinite (fossilized resin)

mineral
Moss Agate (Chalcedony (SiO2) with inclusions of manganese or iron oxide) — mineral

Moss Agate

Chalcedony (SiO2) with inclusions of manganese or iron oxide

mineral
Chert / Flint (Silicon dioxide (SiO2)) — sedimentary

Chert / Flint

Silicon dioxide (SiO2)

sedimentary
Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Jasper

Jasper (Silicon Dioxide, SiO2)

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

Chert (Flint Nodules)

Silicon Dioxide (SiO2)

sedimentary
River Jasper (Chert/Chalcedony) (Silicon Dioxide (SiO2) with iron oxide impurities) — sedimentary

River Jasper (Chert/Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

sedimentary
Amber (specifically Red or Cherry Amber) (Succinite (Resinite); Chemical formula: C10H16O) — Mineraloid

Amber (specifically Red or Cherry Amber)

Succinite (Resinite); Chemical formula: C10H16O

Mineraloid
Pearl (Calcium Carbonate (CaCO3) - Aragonite/Calcite) — mineral

Pearl

Calcium Carbonate (CaCO3) - Aragonite/Calcite

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

Petrified Wood

Silicified wood (primarily Silicon Dioxide, SiO2)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

sedimentary
Shungite (Non-crystalline carbonoid (Shungite)) — metamorphic

Shungite

Non-crystalline carbonoid (Shungite)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

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

Petrified Wood

Silicified wood (primarily Silicon Dioxide, SiO2)

metamorphic
Blue Apatite (Calcium Phosphate (Ca5(PO4)3(F,Cl,OH))) — mineral

Blue Apatite

Calcium Phosphate (Ca5(PO4)3(F,Cl,OH))

mineral
Agate (Moss or Green Agate) (Silicon Dioxide (SiO2)) — mineral

Agate (Moss or Green Agate)

Silicon Dioxide (SiO2)

mineral
Moss Agate (Chalcedony (Silicon Dioxide - SiO2) with inclusions) — Mineral

Moss Agate

Chalcedony (Silicon Dioxide - SiO2) with inclusions

Mineral
Amber (Succinate (Fossilized Tree Resin)) — mineraloid

Amber

Succinate (Fossilized Tree Resin)

mineraloid
Pearl (with Peridot) (Calcium carbonate (CaCO3) + Conchiolin; Peridot: Magnesium iron silicate (Mg, Fe)2SiO4) — mineral

Pearl (with Peridot)

Calcium carbonate (CaCO3) + Conchiolin; Peridot: Magnesium iron silicate (Mg, Fe)2SiO4

mineral