ophitic
Britishadjective
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
They may be ophitic, though often they are not, and they usually contain olivine, while their augite has distinctly purple shades, and a feeble dichroism.
From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" by Various
The commonest type of structure in dolerite is the ophitic, which results from the felspar of the rock having crystallized before the augite; the latter mineral forms shapeless masses in which the idiomorphic felspars lie.
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
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
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