— saussuritic /saw'seuh rit"ik/ , adj.
/saw"seuh ruyt'/ , n.
a mineral aggregate of albite, zoisite, and other calcium aluminum silicates, formed by alteration of plagioclase feldspars in igneous rocks.
[ 1805-15; named after H. B. de Saussure (1740-99), Swiss geologist and physicist; see -ITE 1 ]