bar·ite

[bair-ahyt, bar-]
noun
a common mineral, barium sulfate, BaSO 4 , occurring in white, yellow, or colorless tabular crystals: the principal ore of barium.
Also, barytes.
Also called heavy spar.


Origin:
1780–90; bar(ytes) + -ite1

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Collins
World English Dictionary
barite (ˈbɛəraɪt) [Click for IPA pronunciation guide]
 
n
(US), (Canadian) barytes, Also called: heavy spar a colourless or white mineral consisting of barium sulphate in orthorhombic crystalline form, occurring in sedimentary rocks and with sulphide ores: a source of barium. Formula: BaSO4
 
[C18: from bar(ium) + -ite1]

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Barite is always a great word to know.
So is interrobang. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
American Heritage
Science Dictionary
barite   (bâr'īt)  Pronunciation Key 
A usually white, clear, or yellow orthorhombic mineral. Barite occurs as flattened blades or in a circular pattern of crystals that looks like a flower and, when colored red by iron stains, is called a desert rose. It is found in limestone, in clay-rich rocks, and in sandstones. Barite is used as a source of barium. Chemical formula: BaSO4.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Barium is obtained through the mining of crude barite ore, which contains
  mostly barium sulfate.
Abandoned barite and iron ore mines, prospects, and rock repository locations
  are plotted on the map.
Distal barite-fluorite veins consist of variable proportions of barite,
  fluorite, and manganese oxides.
Information gathered on manganese, barite, and iron are not included in this
  report.
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