granodiorite
- a coarse-grained acid igneous rock containing almost twice as much plagioclase as orthoclase: intermediate in composition between granite and diorite
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Word Origin
C19: from grano + diorite
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Examples from the Web for granodiorite
Historical Examples
From other areas the same materials are present plus sandstone, granite, and granodiorite.
The Topanga Culture Final Report on Excavations, 1948A. E. Treganza
granodiorite
[grăn′ə-dī′ə-rīt′]
- A coarse-grained igneous rock consisting primarily of quartz, plagioclase, and potassium feldspar, and also containing biotite, hornblende, or pyroxene. It is the coarse-grained equivalent of dacite.
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