Amber (Copal)
Fossilized Tree Resin
mineraloid
Category
Organic
Browse organic specimens identified by the Rock Identifier community.
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Raw Amber / Resin Mineral
Succinite (Fossilized Tree Resin)
gemstone
Amber
Succinite (formula varies, primarily C10H16O)
Mineraloid (Organic)
Amber (Raw)
Succinite (Fossilized Resin)
mineraloid
Pearls (likely freshwater cultured pearls)
Pearl: nacre, primarily aragonite (CaCO₃) with conchiolin
gemstone
Amber and Citrine Quartz
Succinite (Amber) and Silicon Dioxide (SiO2 / Citrine)
mineral
Amber
Succinite (fossilized resin, C10H16O)
mineral
Amber
Succinicum (C10H16O)
mineral
Amber
Succinite (C10H16O)
mineraloid
Amber
Succinite (specific to Baltic amber), fossilized tree resin
Organic Mineraloid
Naga Silver-Inlaid Ebony and Bone/Horn Beads
Diospyros (Ebony) or Keratin (Horn) with Silver/White-Metal Inlay
Organic (Anthropological Artifact)
Ironstone concretion / Limonitic Sandstone
Goethite/Hematite Cemented Sandstone (Hydrated Iron Oxide)
sedimentary
Amber
Resinite / Fossilized Tree Resin
mineral
Amber
Succinite (Fossilized Tree Resin)
mineraloid
Amber (Copal)
Succinate (Fossilized Tree Resin)
mineraloid
Limestone (specifically Bituminous or Carbonaceous Limestone)
Calcium Carbonate (CaCO3) with Organic Impurities
sedimentary
Amber
Succinite (Formula: C10H16O)
Mineraloid
Petrified Wood
Silicified wood (Quartz replacement, SiO2)
fossil
Amber
Succinite (with empirical formula approximately C10H16O)
Organic Mineraloid
Fossiliferous Shale
Carbonaceous Shale (with potential plant/aquatic fossils)
sedimentary
Chert (Agatized/Chalcedony variety)
Microcrystalline Quartz (SiO2)
sedimentary
Amber
Succinite
Organic mineraloid
Mother of Pearl (Nacre)
Aragonite (CaCO3) with Organic Matrix
mineral
Seashell Fragment
Calcium carbonate (CaCO3) - primarily Aragonite or Calcite
fossil
Black Limestone
Bituminous Limestone (Calcium Carbonate - CaCO3)
sedimentary
Fossilized Bone
Vertebrate fossil (mineralized bone)
fossil
Pyritic Shale
Carbonaceous Shale with Iron Pyrite (FeS2)
sedimentary
Amber
Succinite (Approximate formula: C10H16O)
mineral
Fossilized Wood / Petrified Wood
Petrified Wood (Silicified Flora)
fossil
Pearl
Calcium Carbonate (Aragonite/Calcite) with Conchiolin, CaCO3
gemstone
Chert (Green Fossilized Algae or Jasper)
Silicon Dioxide (SiO2)
sedimentary
Horse Chestnut (Buckeye seed)
Aesculus hippocastanum seed
Organic (Non-geological)
Fossilized Bone
Permineralized Vertebrate Bone
fossil
Chert (Jasper/Chalcedony mix)
Microcrystalline Quartz (SiO2)
sedimentary
Black Pearl (Tahitian Pearl)
Aragonite / Calcite (CaCO3) with Conchiolin
mineral
Freshwater Pearl
Aragonite / Biogenic Calcium Carbonate (CaCO3)
mineral
Black Limestone with Calcite Veining
Bituminous Limestone (CaCO3 with Organic Carbon inclusions)
sedimentary
Pearl
Calcium Carbonate (Aragonite/Calcite) with Conchiolin
gemstone
Kidney Stone
Nephrolithiasis (Calcium Oxalate, Hydroxyapatite, or Uric Acid)
mineral
Natural Pearl
Calcium carbonate (primarily Aragonite and Conchiolin), CaCO3
mineral
Fossilized Bone
Petrified Bone / Biogenic Sedimentary
fossil
Fossilized Shell Fragment / Mother of Pearl
Calcium Carbonate (CaCO3) - Aragonite/Calcite biomineral
fossil