Pearl (likely Freshwater or Akoya Cultured)
Aragonite / Conchiolin composite (CaCO3)
Category
Browse mineralloid (organic gemstone) specimens identified by the Rock Identifier community.
Pearl (likely Freshwater or Akoya Cultured)
Aragonite / Conchiolin composite (CaCO3)
Amber
Succinite (Organic Gemstone)
Amber
Organic gemstone (Succinite)
Amber and Citrine Quartz
Succinite (Amber) and Silicon Dioxide (SiO2 / Citrine)
Amber
Succinicum (C10H16O)
Black Pearl (Tahitian Pearl)
Aragonite / Calcite (CaCO3) with Conchiolin
Pearl
Calcium carbonate (CaCO3) as Aragonite or Calcite
Turquoise and Red Coral
CuAl6(PO4)4(OH)8·4H2O (Turquoise) and Corallium rubrum (Red Coral)
Pearl
Calcium Carbonate (CaCO3) with Conchiolin
Precious Red Coral
Corallium rubrum (Calcium Carbonate, CaCO3)
Rough Amber (likely Copal or immature Amber)
Organic gemstone / Succinite (if Baltic)
Amber
Succinicum (Organic Gemstone - Resinite)
Amber (in Matrix/Shale)
Amber (Fossilized Tree Resin)
Pearl
Calcium Carbonate (Aragonite) with Conchiolin; formula: CaCO3
Amber
Resinite / Fossilized Tree Resin
Amber
Succinite (Fossilized Tree Resin)
Freshwater Pearl
Aragonite / Biogenic Calcium Carbonate (CaCO3)
Turquoise and Red Coral (with Grizzly Bear Claw)
Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Precious Coral (Corallium rubrum)
Red Coral (Precious Coral)
Corallium rubrum (Calcium Carbonate, CaCO3)
Amber
Amber (C10H16O)
Pearl
Organic Mineraloid (CaCO3 + Conchiolin)
Amber
Succinite (Formula: C10H16O)
Precious Red Coral
Corallium rubrum / Corallium japonicum
Amber / Fossilized Resin
Succinite / Fossilized Tree Resin
Amber (Copal)
Fossilized Tree Resin (C10H16O)
Pearl
Calcium Carbonate (Aragonite/Calcite mixed with Conchiolin), CaCO3
Amber (Rough Baltics/Beach Specimen)
Succinicum (Organic Gemstone - Fossilized Resin)
Pink Coral
Corallium rubrum (Calcium Carbonate, CaCO3)
Amber
Succinite (C10H16O)
Red Coral (with Hematite and Black Pearl accents)
Corallium rubrum (Calcium Carbonate, CaCO3)
White Coral
Corallium rubrum (biocarbonate calcium) / CaCO3
Amber
Succinite (a fossilized organic resin)
Amber
Succinite (Approximate formula: C10H16O)
Turquoise and Spiny Oyster (Heishi style beads)
Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Spondylus (Spiny Oyster shell)
Pearl
Organic gemstone (Calcium carbonate - CaCO3)
Black Pearl (Tahitian or Irradiated Type)
Organic gemstone (Calcium Carbonate with Conchiolin Binding)
Amber
Succinite (fossilized resin)
Amber
Organic gemstone (Succinite is common if from the Baltic)
Turquoise and Red Coral
Turquoise: CuAl6(PO4)4(OH)8·4H2O; Red Coral: Corallium rubrum (organic gemstone)
Petrified Wood
Silicified Wood (SiO2)
Amber
Succinite
Natural White Pearl
Calcium Carbonate (Aragonite/Calcite) with Conchiolin - CaCO3