'Also called nacre, this iridescent inner layer of certain shells is composed mainly of calcium carbonate'
Mother-of-pearl
SHELLS: Also called nacre, this iridescent inner layer of certain shells is composed mainly of calcium carbonate
Also called nacre, this iridescent inner layer of certain shells is composed mainly of calcium carbonate
Also called nacre, this iridescent inner layer of certain shells is composed mainly of calcium carbonate
SHELLS
Mother-of-pearl
SHELLS