Chrysocolla (Copper Ore matrix)
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
mineral
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
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Chert Pebble
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Probable amber fragment
Amber (fossilized plant resin; chiefly amorphous organic resin, commonly dominated by succinite)
gemstone
Pearl
Calcium carbonate (CaCO3) in the form of Aragonite or Calcite
mineral
Amber
Succinite (Fossilized Tree Resin)
fossil
Chert (Chalky/Gray Variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Amber
Succinite (specifically for Baltic Amber), Formula: C10H16O
Organic Gemstone (often associated with Sedimentary sequences)
Amber
Succinite (Fossilized Resin C10H16O)
Organic Mineraloid
Brown Jasper
Jasper (a cryptocrystalline variety of Quartz, SiO2)
Mineral, specifically a variety of Quartz
Amber
Succinates (Organic Fossilized Resin)
mineraloid
Amber
Succinates (Organic compound: C10H16O)
mineraloid
Red Coral (Precious Coral)
Corallium rubrum (Calcium Carbonate, CaCO3)
gemstone
Black Limestone
Bituminous Limestone (Calcium Carbonate - CaCO3)
sedimentary
Chert (Iron-stained)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Chalcedony mix)
Microcrystalline Quartz (SiO2)
sedimentary
Calcite
Calcite (CaCO 3)
Mineral
Amber
Succinite (C10H16O)
gemstone
Amber
Succinite (approximate formula C10H16O)
mineral
Chert (Flint variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Pearl
Nacre (Aragonite and Conchiolin), CaCO3
mineral
Quartz with Pyrite
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
mineral
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
mineral
Copper-Bearing Sulfide Ore (likely Chalcopyrite or Bornite)
Chalcopyrite (CuFeS2) or Bornite (Cu5FeS4) in host rock
mineral
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Fossilized Bone
Vertebrate fossil (mineralized bone)
fossil
Chert (variations include Flint/Jasper)
Cryptocrystalline Quartz (SiO2)
sedimentary
Red Jasper
Jasper (Silicon Dioxide, SiO2 with iron oxide impurities)
sedimentary
Amber (Cherry or Red variety)
Succinite (with various trace amounts of organic compounds)
Organic Gemstone (not a rock)
Unakite
Altered Granite (Orthoclase Feldspar, Epidote, and Quartz)
metamorphic
Amber
Fossilized Tree Resin (C10H16O)
gemstone
Amber
Fossilized Tree Resin
gemstone
Pyritic Shale
Carbonaceous Shale with Iron Pyrite (FeS2)
sedimentary
Chert (Brown Variety)
Silicon dioxide (SiO2)
sedimentary
Amber
Succinite (C10H16O)
gemstone
Chert (Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Sea Shell (Mollusk Shell)
Calcium Carbonate (Aragonite/Calcite)
fossil
Amber (specifically Cherry Amber)
Succinite (with the chemical formula C10H16O)
Organic Gemstone (not a mineral)
Amber
Succinicum (Organic polymer, largely C10H16O)
Organic Mineral
Amber
Succinite (Fossilized Tree Resin)
mineraloid
Chert / Flint
Microcrystalline or cryptocrystalline quartz (SiO2)
sedimentary
Limonite
FeO(OH)·nH2O
mineral
Lepidolite
K(Li,Al)3(Al,Si,IV)4O10(F,OH)2
mineral