diabase
[dahy-uh-beys]
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noun Petrology.
a fine-grained gabbro occurring as minor intrusions.
British. a dark igneous rock consisting essentially of augite and feldspar; an altered dolerite.
Origin of diabase
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for diabase
Historical Examples of diabase
Quartz porphyry, diabase and diorite appear in the Ardennes.
The minerals of diabase are the same as those of dolerite, viz.
One, a complete specimen composed of a diabase, was shaped by pecking followed by grinding.
The Topanga Culture Final Report on Excavations, 1948A. E. Treganza
In Arizona chrysotile is found in veins in cherty limestone, associated with diabase intrusives.
The Economic Aspect of GeologyC. K. Leith
At St Andreasberg in the Harz it occurs both in diabase and in the veins of silver ore.
diabase
noun
Word Origin for diabase
C19: from French, from Greek diabasis a crossing over, from diabainein to cross over, from dia- + bainein to go
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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diabase
[dī′ə-bās′]
The American Heritage® Science Dictionary
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