Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of diabase is as below...

Ophite :: Ophite (n.) A greenish spotted porphyry, being a diabase whose pyroxene has been altered to uralite; -- first found in the Pyreness. So called from the colored spots which give it a mottled appearance..

Lath-shaped :: Lath-shaped (a.) Having a slender elongated form, like a lath; -- said of the feldspar of certain igneous rocks, as diabase, as seen in microscopic sections..

Diabase :: Diabase (n.) A basic, dark-colored, holocrystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; -- often limited to rocks pretertiary in age. It includes part of what was early called greenstone..

Greenstone :: Greenstone (n.) A name formerly applied rather loosely to certain dark-colored igneous rocks, including diorite, diabase, etc..

Variolite :: Variolite (n.) A kind of diorite or diabase containing imbedded whitish spherules, which give the rock a spotted appearance..

Viridite :: Viridite (n.) A greenish chloritic mineral common in certain igneous rocks, as diabase, as a result of alternation..

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