Baroque Pearl (and potentially a small Sapphire/Blue Topaz)
Pearl: Calcium Carbonate (aragonite or calcite) with conchiolin. Sapphire: Aluminum Oxide (Al2O3). Blue Topaz: Al2SiO4(F,OH)2.
Organic Gemstone (for pearl), Mineral (for sapphire/topaz)
Category
Organic Gemstone (For Pearl), Mineral (For Sapphire
Browse organic gemstone (for pearl), mineral (for sapphire specimens identified by the Rock Identifier community.
Learn about Organic Gemstone (For Pearl), Mineral (For Sapphire in the encyclopedia
View all →
Natural Pearl
Calcium carbonate (primarily Aragonite and Conchiolin), CaCO3
mineral
Pearl
Calcium Carbonate (CaCO3) with Conchiolin
mineral
Black Pearl (Tahitian Pearl)
Aragonite / Calcite (CaCO3) with Conchiolin
mineral
Pearl
Calcium Carbonate (Aragonite/Calcite mixed with Conchiolin), CaCO3
mineral
Pearl
Calcium carbonate (CaCO3) in the form of Aragonite or Calcite
mineral
Pearl
Calcium Carbonate (Aragonite) with Conchiolin; formula: CaCO3
mineral
Pearl
Biogenic Calcium Carbonate (Aragonite/Calcite), CaCO3
mineral
Pearl
Nacre (Aragonite and Conchiolin), CaCO3
mineral
Pearl
Calcium Carbonate (primarily Aragonite and Calcite), CaCO3
mineral
Pearl
Calcium Carbonate (mostly Aragonite), CaCO3 (with conchiolin)
mineral
Pearl
Calcium carbonate (CaCO3) as Aragonite or Calcite
mineral
Pearl
Calcium Carbonate (CaCO3) + Conchiolin
mineral
Black Pearl (Tahitian-style Cultured Pearl)
Calcium Carbonate (Aragonite) with Conchiolin (CaCO3)
mineral
Freshwater Pearl
Aragonite / Biogenic Calcium Carbonate (CaCO3)
mineral
Pearl
Aragonite (CaCO3 with conchiolin)
mineral
Pearl
Calcium Carbonate (CaCO3) - Aragonite/Calcite organic gemstone
mineral
Amber (Copal)
Fossilized Tree Resin
mineraloid
Pearl
Organic gemstone (Calcium carbonate / CaCO3 + Conchiolin)
mineral
Natural Pearl (appearing in a jewelry setting)
Calcium Carbonate (mostly Aragonite), CaCO3 with Conchiolin
mineral
Pearl
Calcium Carbonate (CaCO3) - Aragonite/Calcite
mineral
Turquoise and Red Coral
CuAl6(PO4)4(OH)8·4H2O (Turquoise) and Corallium rubrum (Red Coral)
mineral
Pearl
Organic gemstone (Calcium carbonate - CaCO3)
mineral
Pearl (Biogenic Mineraloid)
Calcium carbonate (Aragonite) and Conchiolin, CaCO3
mineral
Natural or Cultured Pearl
Calcium Carbonate (Aragonite and Conchiolin), CaCO3
Mineral (Organic)
White Coral
Corallium rubrum (biocarbonate calcium) / CaCO3
mineral
Pearl
Organic Mineraloid (CaCO3 + Conchiolin)
mineral
Pearl
Organic Mineral (CaCO3 with conchiolin)
mineral
Pearl
Biogenic CaCO3 (Aragonite and Calcite)
mineral
Pearl
Aragonite / Calcium Carbonate (CaCO3)
mineral
Black Freshwater Pearls
Biogenic Calcium Carbonate (Aragonite/Calcite), CaCO3
mineral
Black Pearl (Tahitian or Irradiated Type)
Organic gemstone (Calcium Carbonate with Conchiolin Binding)
mineraloid
Amber
Succinite (a fossilized organic resin)
mineral
Pearl (incorporated into jewelry)
Aragonite and Calcite (CaCO3)
mineral
Pearl
Calcium Carbonate (Aragonite/Calcite) with Conchiolin (CaCO3)
mineral
Pearl (Cultured or Natural)
Aragonite (CaCO3) with Conchiolin
Organic Mineraloid
Pearl
Biogenic CaCO3 (Aragonite)
mineral
Pearl
Pearl (Calcium Carbonate with organic conchiolin, CaCO3)
mineral
Pearl
Calcium Carbonate (Aragonite or Calcite) and Conchiolin
Mineraloid
Pearl (likely Freshwater or Akoya Cultured)
Aragonite / Conchiolin composite (CaCO3)
Mineralloid (Organic gemstone)
Pearl
Calcium Carbonate (CaCO3) in the form of orthorhombic Aragonite and Conchiolin
mineral
Pearl
Calcium carbonate (CaCO3) + organic conchiolin (Biogenic Mineral)
mineral