
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.
Baroque Pearl: Irregular shape, often elongated or undulating. Luster: Pearly to iridescent (orient), depending on nacre quality. Color: White, cream, pink, silver, grey, golden, black, with possible overtones. Hardness: 2.5-4.5 on Mohs scale (relatively soft).…
- Hardness
- 2
- Luster
- Pearly to iridescent (orient), depending on nacre quality
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Physical properties
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More like this
Other organic gemstone (for pearl), mineral (for sapphire/topaz) specimens
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
Blue Topaz (facetted in jewelry)
Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)
Natural Pearl
Calcium carbonate (primarily Aragonite and Conchiolin), CaCO3
Dearest Ring (Gemstones)
Mixed Gemstones: Diamond (C), Emerald (Be3Al2Si6O18), Amethyst (SiO2), Ruby (Al2O3), Sapphire (Al2O3), Topaz (Al2SiO4(F,OH)2)
Pearl
Calcium Carbonate (CaCO3) with Conchiolin
Black Pearl (Tahitian Pearl)
Aragonite / Calcite (CaCO3) with Conchiolin