Pearl look-alikes

Biogenic calcium carbonate (aragonite/calcite)

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Several rocks and minerals can be confused with Pearl. Below are documented look-alikes and the features that tell them apart. Never rely on a single feature. Always check multiple properties.

Similar rocks to compare

Mother-of-pearl

Biogenic calcium carbonate (aragonite)

Also known as: Nacre

Coral

Calcium carbonate (calcite/aragonite)

Also known as: Precious coral

Shell

Calcium carbonate (aragonite/calcite)

Also known as: Mollusk shell

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