Mineraloid (Organic Gemstone)

Amber

Succinite (Approximate formula: C10H16O)

Pink Coral

Corallium rubrum (Calcium Carbonate, CaCO3)

Pearl

Calcium Carbonate (Aragonite/Calcite) with Conchiolin, CaCO3

Amber

Succinite (fossilized resin)

Turquoise and Spiny Oyster (Heishi style beads)

Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Spondylus (Spiny Oyster shell)

Amethyst, Aquamarine, and Pearl Ring

SiO2 (Amethyst), Be3Al2Si6O18 (Aquamarine), CaCO3 (Pearl)

Turquoise and Red Coral

Turquoise: CuAl6(PO4)4(OH)8·4H2O; Red Coral: Corallium rubrum (organic gemstone)

Amber

Succinite (Fossilized Tree Resin)

Precious Red Coral

Corallium rubrum / Corallium japonicum

Pearl

Calcium carbonate (Aragonite/Calcite) - CaCO3

Petrified Wood

Silicified Wood (SiO2)

Amber

Succinite (approximate formula C10H16O)

Pearl

Organic gemstone (Calcium carbonate / CaCO3 + Conchiolin)

Opalite

Synthetic Fluorescent Glass (SiO2 + impurities)

Polished black stone egg, probably black obsidian

Obsidian, a natural volcanic glass; composition primarily silica-rich glass (approximately SiO₂), with variable iron and other trace elements

Pearl (incorporated into jewelry)

Aragonite and Calcite (CaCO3)

Amber

Succinite (Fossilized Resin)

Amber

Succinited (fossilized tree resin)

Pearls

Pearl: biomineralized aragonite (CaCO₃) and conchiolin

Amber

Succinite / Fossilized Resin (C10H16O)

Amber

Succinite

Polished amber-like organic gemstone

Likely amber (fossilized plant resin), possibly copal or brown chalcedony; exact identification requires testing

Polished amber-like organic gemstone

Amber (fossilized tree resin), commonly succinite; exact identification is uncertain from the image

Amber

Succinite

Natural Pearl

Calcium carbonate (primarily Aragonite and Conchiolin), CaCO3

Pearl

Calcium Carbonate (CaCO3) + Conchiolin

Tumbled amber

Fossilized plant resin; commonly succinite (organic polymerized resin)

Polished amber

Fossilized tree resin; chiefly polymerized diterpenoid resin (succinite when Baltic-type)

Red coral earrings

Corallium rubrum or related precious coral (calcareous coral skeleton; primarily aragonite, CaCO₃)

Polished amber

Amber (fossilized plant resin; chiefly amorphous organic compounds)

Amber cabochon pendant

Amber (fossilized tree resin; chiefly polymerized terpenoids)

Amber (possibly a small polished amber cabochon)

Fossilized tree resin; amber is an organic gemstone, not a mineral

Jasper

Microcrystalline quartz (SiO2)

Banded Chert

Microcrystalline Quartz (SiO2)

Amber beads

Amber, fossilized plant resin; largely polymerized terpenoid resin (not a mineral)

Amber

Fossilized Tree Resin

Amber

Fossilized Tree Resin (C10H16O)

Amber

Succinite (C10H16O)

Amber

Succinite (C10H16O)

Pearl

Aragonite (CaCO3 with conchiolin)

Bamboo Leaf Jasper

Silicified Siltstone or Jasper (SiO2)

Tahitian black pearl strand

Cultured pearl; aragonite (CaCO₃) nacre