boracite

[bawr-uh-sahyt, bohr-]

noun

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

Origin of boracite

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for boracite

Historical Examples of boracite

Tetrahedrite, blende, diamond, boracite and pharmacosiderite are substances which crystallize in this class.
Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7
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
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

British Dictionary definitions for boracite

boracite

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