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aragonite

[uh-rag-uh-nahyt, ar-uh-guh-] /əˈræg əˌnaɪt, ˈær ə gə-/
noun
1.
a mineral, orthorhombic calcium carbonate, CaCO 3 , chemically identical with calcite but differing in crystallization and in having a higher specific gravity and less marked cleavage.
Origin of aragonite
1795-1805
1795-1805; named after Aragon (the province, where first found) + -ite1
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for aragonite

aragonite

/əˈræɡəˌnaɪt/
noun
1.
a generally white or grey mineral, found in sedimentary rocks and as deposits from hot springs. Composition: calcium carbonate. Formula: CaCO3. Crystal structure: orthorhombic
Word Origin
C19: from Aragon + -ite1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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aragonite in Science
aragonite
  (ə-rāg'ə-nīt', ār'ə-gə-)   
A usually white, yellowish, or pink orthorhombic mineral that can occur in many different colors. Aragonite occurs as acicular (needlelike) or tabular crystals, or as fibrous aggregates. It is found in gypsum deposits, at the tips of calcite crystals, in mollusk shells and pearls, and in living reef structures. It is a polymorph of calcite. Chemical formula: CaCO3.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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