saussurite
[saw-suh-rahyt]
- a mineral aggregate of albite, zoisite, and other calcium aluminum silicates, formed by alteration of plagioclase feldspars in igneous rocks.
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Origin of saussurite
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for saussurite
Historical Examples
Equally characteristic of the gabbros is the alteration of the felspars to cloudy, semi-opaque masses of saussurite.
Saussurite, saw-sū′rīt, n. a fine-grained compact mineral, of grayish colour.