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mother-of-pearl - food of immortality

pinctada maximus, pearl oyster shell

necklace of mother-of-pearl, pearls & austrian crystal

compositioncalcium carbonate
other accepted namesmop
color nacre-formed iridescence
color sourcefrom light being refracted within the crystal layers of the shell, as well as diet and genetic factors
significant sourcesocean and river waters of the world
MOH scale2.5
care and treatmentMother-of-pearl is a soft organic substance which can easily get scratched. Clean with a mild soap. Do not expose to harsh detergents or chemicals. Do not clean in ultra sonic jewelry cleaner.