saussurite


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Related to saussurite: gabbro

saussurite

(sɔːˈsjʊəraɪt)
n
(Minerals) a greyish-green mineral composite of albite, zoite, and other minerals that is formed by the hydrothermal alteration of feldspar
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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References in periodicals archive ?
The feldspar phenocrysts and the groundmass are generally altered to kaolinite, sericite and saussurite. The meta-volcanics of the Burji-La Formation consists of amphibole (mainly tremolite/actinolite with lesser amount of hornblende), plagioclase, epidote, alkali-feldspar, chlorite and ores.
The plagioclase is completely altered to saussurite. The rock is named leucodiorite because it contains amphibole rather than pyroxene.
(a) The long vowel sound is preceded and succeeded by a short 's' sound Long A Sevssel (the name of 2 villages on the upper Rhone), sayst Long E deceased, caecitis Long I incisor, syce (an Indian horse groom) Long O saussurite (variety of the mineral zoisite), society Long U disuse
Subhedral plagioclase is slightly to extensively altered to saussurite and sericite.