JDMISGem Reference
Mollusc (bivalve and gastropod shell) · Shell

Mother-of-Pearl

Mother-of-Pearl — Shell

Mother-of-pearl is the nacreous lining of pearl oysters, mussels and abalone: tough, shimmering sheets of aragonite platelets used for beads, buttons, inlay and dials.

Colour
yellow
Transparency
Opaque
RI
1.530–1.685
SG
2.70–2.89
Mohs
3.5
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