Nacre, also known as mother-of-pearl, is a biomineral that forms inside ... of aragonite (a form of calcium carbonate) separated by sheets of elastic biopolymers. This mixture of brittle platelets ...

Bone, wood and mother of pearl have properties far exceeding the ... water and carefully freeze it to encourage ice to form in sheets. The ice acts as a mould, sandwiching the aluminium oxide ...

Mother-of-pearl is the hard, silvery, internal layer of several kinds of shells, especially oysters, the large varieties of which in the Indian Seas secrete this coat of sufficient thickness to ...