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zoisite

[zoi-sahyt]
noun Mineralogy.
  1. an orthorhombic dimorph of clinozoisite.
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Origin of zoisite

1795–1805; named after Baron S. Zois von Edelstein (1747–1819), Slovenian nobleman who discovered it; see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for zoisite

zoisite

noun
  1. a grey, brown, or pink mineral consisting of hydrated calcium aluminium silicate in orthorhombic crystalline form. Formula: Ca 2 Al 3 (SiO 4) 3 (OH)
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Word Origin for zoisite

C19: from German Zoisit; named after Baron Sigismund Zois von Edelstein (1747–1819), Slovenian nobleman; see -ite 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012