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ophitic

British  
/ əʊˈfɪtɪk /

adjective

  1. (of the texture of rocks such as dolerite) having small elongated unorientated feldspar crystals enclosed within pyroxene grains

"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

Example Sentences

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When these rocks become fine-grained they pass gradually into ophitic diabase and dolerite; only very rarely does olivine enclose 378 felspar in this way.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" by Various

In the less complete stages of alteration, ophitic structure may persist, and the original augite of the rock may not have been entirely replaced by 689 hornblende.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6 "English Language" to "Epsom Salts" by Various

In the rocks of this group ophitic structure is typically absent, and the presence of an interstitial finely crystalline or amorphous material gives rise to the structure which is known as “intersertal.”

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" by Various

Their structure is ophitic in the finer varieties, and to some extent in the coarser kinds as well.

From History and Comprehensive Description of Loudoun County, Virginia by Head, James William

One could fill a volume with all the Arab, Hindoo, and other Oriental tales belonging to the beloved of "ophitic monsters."

From Algonquin Legends of New England by Leland, Charles Godfrey