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felsic
Definitions
[ˈfɛlsɪk], (Adjective)
Definitions:
- relating to or denoting a group of light-coloured minerals including feldspar, feldspathoids, quartz, and muscovite
(e.g: felsic volcanic rocks)
Phrases:
Origin
:
early 20th century: from feldspar + a contraction of silica
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definition by Oxford Dictionaries