Amber with dark mineral/organic inclusions
Fossilized plant resin (amber; chiefly polymerized diterpenoid resin)
gemstone
Category
Mineral (Organic)
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Fossilized Shark Tooth or Bone Fragment
Vertebrate Fossil (likely Carcharodon or similar genus)
fossil
Soil with Mineral Detritus and Quartz Fragments
Regolith / Silicate Mineral Aggregate
sedimentary
Natural or Cultured Pearl
Calcium Carbonate (Aragonite and Conchiolin), CaCO3
Mineral (Organic)
Precious Red Coral
Corallium rubrum (Calcium Carbonate, CaCO3)
Mineral (Organic Gemstone)
Precious Red Coral
Corallium rubrum / Corallium japonicum
mineral (organic gemstone)
Coral (Precious Coral)
Corallium rubrum (Red Coral), Paracorallium japonicum (Momo Coral), Pleurocorallium elatius (Sardinian Coral), various other species within the Corallidae family. Chemically, it's primarily Calcium Carbonate (CaCO 3 ).
Mineral, Organic Gemstone
Banded Chert / Banded Jasper (likely a variety of Chert/Chalcedony)
Chert (microcrystalline quartz)
Metamorphic Rock
Amber (Copal)
Fossilized Tree Resin
mineraloid
Amber
Succinite (formula varies, primarily C10H16O)
Mineraloid (Organic)
Amber (Raw)
Succinite (Fossilized Resin)
mineraloid
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
Raw Amber / Resin Mineral
Succinite (Fossilized Tree Resin)
gemstone
Petrified Wood
Silicified wood (Quartz replacement, SiO2)
fossil
Amber
Resinite / Fossilized Tree Resin
mineral
Amber
Succinite (Fossilized Tree Resin)
mineraloid
Kidney Stone
Nephrolithiasis (Calcium Oxalate, Hydroxyapatite, or Uric Acid)
mineral
Fossilized Bone
Permineralized Vertebrate Bone
fossil
Amber
Succinite (specific to Baltic amber), fossilized tree resin
Organic Mineraloid
Amber
Succinite (with empirical formula approximately C10H16O)
Organic Mineraloid
Fossilized Bone
Petrified Bone / Biogenic Sedimentary
fossil
Amber
Succinite
Organic mineraloid
Mother of Pearl (Nacre)
Aragonite (CaCO3) with Organic Matrix
mineral
Fossilized Bone
Vertebrate fossil (mineralized bone)
fossil
Amber (Copal)
Succinate (Fossilized Tree Resin)
mineraloid
Black Limestone
Bituminous Limestone (Calcium Carbonate - CaCO3)
sedimentary
Amber
Succinite (Approximate formula: C10H16O)
mineral
Amber
Succinite (organic hydrocarbon)
mineraloid
Natural Pearl
Calcium carbonate (primarily Aragonite and Conchiolin), CaCO3
mineral
Limestone or Sandstone Cobble
Sedimentary rock (Calcium carbonate or Quartz based)
sedimentary
Ironstone concretion / Limonitic Sandstone
Goethite/Hematite Cemented Sandstone (Hydrated Iron Oxide)
sedimentary
Amber
Succinates (Fossilized Tree Resin)
mineraloid
Amber
Succinite (C10H16O)
mineral
Chert (Jasper/Chalcedony mix)
Microcrystalline Quartz (SiO2)
sedimentary
Amber
Fossilized Tree Resin
gemstone
Garden Quartz (Lodolite / Inclusion Quartz)
Quartz with inclusions (SiO2 with various mineral inclusions)
gemstone
Freshwater Pearl
Aragonite / Biogenic Calcium Carbonate (CaCO3)
mineral
Petrified Wood
Silicified Wood (SiO2)
fossil
Fossilized Gastropod / Coral
Phylum Mollusca / Cnidaria (Silicified or Calcified)
fossil