SG Heritage Dictionary

Saussurite [Noun] Webster's Dictionary 1828

A mineral so named from Saussure, the discoverer, of a white gray or green color, found at the foot of mount Rosa. It approaches andalusite.

Saussurite [Noun] Webster's Dictionary 1913

A tough, compact mineral, of a white, greenish, or grayish color. It is near zoisite in composition, and in part, at least, has been produced by the alteration of feldspar.