zoisite

American  

[zoi-sahyt] / ˈzɔɪ saɪt /

noun

Mineralogy.

1. an orthorhombic dimorph of clinozoisite.

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zoisite British  

/ ˈzɔɪˌsaɪt /

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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Etymology

Origin of zoisite

1795–1805; named after Baron S. Zois von Edelstein (1747–1819), Slovenian nobleman who discovered it; see -ite ¹

Example Sentences

The following minerals produce beads with a small quantity of soda, but with the addition of more produce slags: tabular spar, diallage, hypersthene, epidote, zoisite.

From A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations by Anonymous

They are principally finely divided quartz, epidote, zoisite, rutile, limonite, calcite, pyrites, and very small particles of these are rarely absent from natural clays.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" by Various

Their hornblende in microscopic section is usually dark green, rarely brownish; their felspar may be clear and recrystallized, but more frequently is converted into a turbid aggregate of epidote, zoisite, quartz, sericite and albite.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6 "English Language" to "Epsom Salts" by Various