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granodiorite
/ ˌɡrænəʊˈdaɪəˌraɪt /
noun
- a coarse-grained acid igneous rock containing almost twice as much plagioclase as orthoclase: intermediate in composition between granite and diorite
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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Word History and Origins
Origin of granodiorite1
C19: from grano + diorite
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Example Sentences
From other areas the same materials are present plus sandstone, granite, and granodiorite.
From Project Gutenberg
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