gemstone

Baroque cultured pearl necklace

Pearl: nacre composed mainly of aragonite (CaCO₃) and conchiolin

AI-generated identification · may be incorrect

Irregular, lustrous cream, pink, lavender, and gray beads with pearly iridescence; Mohs hardness about 2.5–4.5. Aragonite is orthorhombic, but nacre consists of microscopic layered crystals; pearls are relatively soft and easily scratched.

Identified October 5, 2026More gemstone →

Explore Baroque cultured pearl necklace in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Pearls form in mollusks as successive nacre layers build around an irritant; cultured pearls are initiated by human insertion of mantle tissue, often with a nucleus. This is a modern biological gemstone, not a rock type.

Uses & applications

Used primarily in jewelry and ornament; pearls have little industrial or construction use.

Geological facts

The irregular, non-spherical shapes are called baroque. Their colors and sheen result from light interacting with thin nacre layers.

Field identification & locations

The image shows a strand of baroque cultured pearls, likely freshwater, though origin cannot be confirmed visually. Commonly cultured in China and other pearl-producing regions; identify by their organic irregular shapes and nacreous luster.