title: Aragonite twinning in the molluscan bivalve hinge ligament.
abstract: Molluscan bivalve hinge ligaments are composed of long needle-shaped aragonite crystals embedded in a protein matrix. These crystals are twinned and, in general, the twin forms a thin lamella through the center of the crystal.
authors.forename: M E
authors.initials: ME
authors.lastname: Marsh
authors.forename: R L
authors.initials: RL
authors.lastname: Sass