Rock Identifier

Category

Organic Gemstone (Sedimentary Associations)

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

Learn about Organic Gemstone (Sedimentary Associations) in the encyclopedia

Sapropel

Bituminous Shale

Bituminous Shale

Black Shale

Red Garnet

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Breccia

Ironstone

Oil Shale

Jet

Petrified Wood

Amber

Amber (Succinite / Fossilized Tree Resin) — fossil

Amber

Succinite / Fossilized Tree Resin

Amber (Succiniferous fossil resin (C10H16O)) — mineral

Amber

Succiniferous fossil resin (C10H16O)

Sedimentary Sandstone (Arenite (Sedimentary Rock)) — sedimentary

Sedimentary Sandstone

Arenite (Sedimentary Rock)

Gossan / Iron-Rich Weathered Rock (Hydrated Iron Oxides / Limonite / Goethite) — mineral

Gossan / Iron-Rich Weathered Rock

Hydrated Iron Oxides / Limonite / Goethite

Greenstone (Metabasalt / Greenschist facies rock) — metamorphic

Greenstone

Metabasalt / Greenschist facies rock

Serpentinite (Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4) — metamorphic

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Fluorite (Green) (Calcium Fluoride (CaF2)) — mineral

Fluorite (Green)

Calcium Fluoride (CaF2)

Amber (Fossilized Tree Resin (Organic Polymer)) — gemstone

Amber

Fossilized Tree Resin (Organic Polymer)

Mother of Pearl (Nacre) (Calcium Carbonate (Aragonite) with organic conchiolin) — gemstone

Mother of Pearl (Nacre)

Calcium Carbonate (Aragonite) with organic conchiolin

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

Moss Agate

Chalcedony (SiO2) with inclusions of manganese or iron oxide

Amber (Succinite (fossilized resin)) — mineral

Amber

Succinite (fossilized resin)

Pyrite (Pyrite (Iron sulfide, FeS₂)) — Mineral

Pyrite

Pyrite (Iron sulfide, FeS₂)

Chert (and Chalcedony) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (and Chalcedony)

Microcrystalline Quartz (SiO2)

Chert (varieties include Flint and Jasper) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (varieties include Flint and Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Nephrite Jade (Nephrite (a variety of the Calcium magnesium iron silicate mineral series Actinolite), Ca2(Mg, Fe)5Si8O22(OH)2) — metamorphic

Nephrite Jade

Nephrite (a variety of the Calcium magnesium iron silicate mineral series Actinolite), Ca2(Mg, Fe)5Si8O22(OH)2

Coal (likely Bituminous or Lignite) (Organic Sedimentary Rock (Carbonaceous)) — sedimentary

Coal (likely Bituminous or Lignite)

Organic Sedimentary Rock (Carbonaceous)

Pearl (Organic Mineraloid (CaCO3 + Conchiolin)) — mineral

Pearl

Organic Mineraloid (CaCO3 + Conchiolin)

Black Chert (Carbonaceous Chert (Silicon dioxide, SiO2)) — sedimentary

Black Chert

Carbonaceous Chert (Silicon dioxide, SiO2)

Freshwater Pearl (Calcium Carbonate (CaCO3) in the form of Aragonite and Calcite) — gemstone

Freshwater Pearl

Calcium Carbonate (CaCO3) in the form of Aragonite and Calcite

Shale (Laminated Fissile Pelite) — sedimentary

Shale

Laminated Fissile Pelite

Amber (Succinite (C10H16O)) — mineral

Amber

Succinite (C10H16O)

Tumbled amber (Amber (fossilized plant resin; commonly succinite, C10H16O)) — gemstone

Tumbled amber

Amber (fossilized plant resin; commonly succinite, C10H16O)

Tumbled amber (Amber (fossilized plant resin; commonly succinite, C10H16O)) — gemstone

Tumbled amber

Amber (fossilized plant resin; commonly succinite, C10H16O)

Amber (Succinite (Fossilized Tree Resin)) — gemstone

Amber

Succinite (Fossilized Tree Resin)

Amber (Fossilized Tree Resin (C10H16O)) — gemstone

Amber

Fossilized Tree Resin (C10H16O)

Fossil-bearing Sedimentary Rock (Sedimentum cum fossili) — fossil

Fossil-bearing Sedimentary Rock

Sedimentum cum fossili

Shale (Mudstone (composed primarily of clay minerals like kaolinite, illite, and smectite, with quartz and calcite)) — sedimentary

Shale

Mudstone (composed primarily of clay minerals like kaolinite, illite, and smectite, with quartz and calcite)

Polished plume agate (Chalcedony (microcrystalline SiO₂) with iron-oxide inclusions) — mineral

Polished plume agate

Chalcedony (microcrystalline SiO₂) with iron-oxide inclusions

Fossiliferous Limestone with Rugose Coral (Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)) — sedimentary

Fossiliferous Limestone with Rugose Coral

Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)

Amber (Copal) (Organic gemstone, fossilized tree resin (often immature amber or copal)) — Mineral

Amber (Copal)

Organic gemstone, fossilized tree resin (often immature amber or copal)

Serpentinite (Serpentinite (complex silicate mineral group (Mg,Fe)3Si2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (complex silicate mineral group (Mg,Fe)3Si2O5(OH)4)

Serpentinite (Serpentinite (containing Antigorite, Lizardite, and/or Chrysotile)) — metamorphic

Serpentinite

Serpentinite (containing Antigorite, Lizardite, and/or Chrysotile)

Serpentinite (Serpentinite (Mg, Fe, Ni)3Si2O5(OH)4) — metamorphic

Serpentinite

Serpentinite (Mg, Fe, Ni)3Si2O5(OH)4

Shattuckite (Blue Quartz/Jasper Matrix) (Shattuckite (Copper Silicate Hydroxide - Cu5(SiO3)4(OH)2)) — mineral

Shattuckite (Blue Quartz/Jasper Matrix)

Shattuckite (Copper Silicate Hydroxide - Cu5(SiO3)4(OH)2)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Arfvedsonite with Garnet (Na3(Fe2+,Mg)4Fe3+Si8O22(OH)2) — igneous

Arfvedsonite with Garnet

Na3(Fe2+,Mg)4Fe3+Si8O22(OH)2

Fluorite (Fluorite (CaF2)) — mineral

Fluorite

Fluorite (CaF2)

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

Shungite

Non-crystalline carbonoid (Shungite)

Bumblebee Jasper (Fibrous Calcite and Quartz with Volcanic Matter (CaCO3 / SiO2)) — mineral

Bumblebee Jasper

Fibrous Calcite and Quartz with Volcanic Matter (CaCO3 / SiO2)

Amber (Succinite (Fossilized Tree Resin)) — gemstone

Amber

Succinite (Fossilized Tree Resin)

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

Moss Agate

Chalcedony (Silicon Dioxide - SiO2) with inclusions