What is 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 called?
saussurite — 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. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00