margarite
(noun)
noun
1. (mineralogy) A calcium-rich member of the mica group of phyllosilicates, forming white to pinkish or yellowish-gray masses or thin laminae.
2. (obsolete) pearl
(noun)
1. (mineralogy) A calcium-rich member of the mica group of phyllosilicates, forming white to pinkish or yellowish-gray masses or thin laminae.
2. (obsolete) pearl