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orthoclastic

[awr-thuh-klas-tik] /ˌɔr θəˈklæs tɪk/
adjective, Crystallography
1.
(of a crystal) having cleavages at right angles to each other.
Origin
1875-1880
1875-80; < German orthoklastisch, equivalent to ortho- ortho- + -klastisch clastic
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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