dacite

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da·cite

 (dā′sīt′)
n.
A fine-grained light gray volcanic rock consisting primarily of quartz, plagioclase feldspar, and potassium feldspar, and also containing biotite, hornblende, or pyroxene.

[After Dacia.]

dacite

(ˈdeɪsaɪt)
n
an igneous, volcanic rock characteristically light in colour with relatively high silica content
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.dacite - a grey volcanic rock containing plagioclase and quartz and other crystalline minerals
oligoclase, plagioclase - any of a series of triclinic feldspars that form rocks
volcanic rock - extrusive igneous rock solidified near or on the surface of the Earth
Translations
dacit
References in periodicals archive ?
The Ruiz-Tolima complex was produced by repeated eruptions of andesite and dacite lavas and andesite pyroclastics.