teschenite

[tesh-uh-nahyt]
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noun

a coarse-grained igneous rock consisting of plagioclase, olivine, and augite.

Origin of teschenite

1865–70; Teschen (German name of Czech Tešín, town in the Czech Republic) + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Historical Examples of teschenite