Rock Identifier

Category

Organic Gemstone (Biogenic)

Browse organic gemstone (biogenic) specimens identified by the Rock Identifier community.

Learn about Organic Gemstone (Biogenic) in the encyclopedia

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Jet

Jet

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

Chert (Jasper)

Silicon Dioxide (SiO2)

sedimentary
Amber (Succinite (organic hydrocarbon)) — mineraloid

Amber

Succinite (organic hydrocarbon)

mineraloid
Black Pearl (Tahitian Type) (Aragonite / Pinctada margaritifera (CaCO3 + Conchiolin)) — Organic Gemstone

Black Pearl (Tahitian Type)

Aragonite / Pinctada margaritifera (CaCO3 + Conchiolin)

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

Pearl

Calcium Carbonate (Aragonite) with Conchiolin; formula: CaCO3

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

Pink Opal

Hydrated silica (SiO2 "n H2O)

mineral
Amber (Succinite (approximate formula C10H16O)) — mineral

Amber

Succinite (approximate formula C10H16O)

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

Chert / Flint

Silicon dioxide (SiO2)

sedimentary
Amber (Succiniferous fossil resin (C10H16O)) — mineral

Amber

Succiniferous fossil resin (C10H16O)

mineral
Amber (Succinite (Formula: C10H16O)) — mineral

Amber

Succinite (Formula: C10H16O)

mineral
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
Amber (Succinite (fossilized organic resin)) — mineral

Amber

Succinite (fossilized organic resin)

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

Blue Apatite

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

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

River Jasper (Chert/Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

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

Petrified Wood

Silicified Wood (SiO2)

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

Black Jasper

Silicon Dioxide (SiO2) with impurities

sedimentary
Amber (Succinite (approximate formula C10H16O)) — mineraloid

Amber

Succinite (approximate formula C10H16O)

mineraloid
Amber (Dark/Black Variety) (Succinite (Resinite), C10H16O) — mineral

Amber (Dark/Black Variety)

Succinite (Resinite), C10H16O

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

Pearl

Calcium Carbonate (CaCO3) - Aragonite/Calcite

mineral
Amber (Tumbled/Polished) (Succinite (Fossilized Tree Resin)) — mineraloid

Amber (Tumbled/Polished)

Succinite (Fossilized Tree Resin)

mineraloid
Amber (Succinite (approximate formula C10H16O)) — mineraloid

Amber

Succinite (approximate formula C10H16O)

mineraloid
Amber with inclusion (Amber (Fossilized Tree Resin)) — mineral

Amber with inclusion

Amber (Fossilized Tree 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
Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

sedimentary
Picture Jasper (SiO2) — mineral

Picture Jasper

SiO2

mineral
Chert (Brown Variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Brown Variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

sedimentary
Chert (often called Flint) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (often called Flint)

Chert (Silicon Dioxide, SiO2)

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

Banded Chert

Microcrystalline Quartz (SiO2)

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

Petrified Wood

Silicified wood (primarily Silicon Dioxide, SiO2)

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

Amber

Succinates (Organic compound: C10H16O)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

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

Red Chert

Microcrystalline Quartz (SiO2)

sedimentary
Chert (Yellow Jasper variant) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Yellow Jasper variant)

Silicon Dioxide (SiO2)

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

Chert (often called Flint)

Microcrystalline Quartz (SiO2)

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

Amber

Succinite (Fossilized Tree Resin, C10H16O)

gemstone
Chert (specifically Brown Chert or Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Brown Chert or Jasper)

Microcrystalline Quartz (SiO2)

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

Chert (White Flint)

Silicon Dioxide (SiO2)

sedimentary
Red Coral (Corallium rubrum) — mineral

Red Coral

Corallium rubrum

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

Amber (specifically Red or Cherry Amber)

Succinite (Resinite); Chemical formula: C10H16O

Mineraloid