boracite

[ bawr-uh-sahyt, bohr- ]

/ ˈbɔr əˌsaɪt, ˈboʊr- /

noun

a strongly pyroelectric mineral, a borate and chloride of magnesium, Mg6Cl2B14O26, occurring in white or colorless cubic crystals or fine-grained masses.

Nearby words

boq, bor., bora, bora bora, boracic, boracite, borage, borage family, boraginaceous, borah, borah peak

Origin of boracite

1800–10; borac- (stem of borax¹) + -ite¹

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for boracite

The sanjak is rich in mineral wealth; silver mines are worked at Balia and boracite mines at Susurlu.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2|Various
It may also be obtained by the decomposition of boracite with hot hydrochloric acid.
Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3|Various
Various explanations have been offered to account for these “optical anomalies” of boracite.
Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 2|Various
Tetrahedrite, blende, diamond, boracite and pharmacosiderite are substances which crystallize in this class.
Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7|Various

British Dictionary definitions for boracite

boracite

/ (ˈbɔːrəˌsaɪt) /

noun

a white mineral that forms salt deposits of magnesium borate and chloride in orthorhombic crystalline form. Formula: Mg 3 ClB 7 O 13

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