- felspars
- fel·spar || 'felspÉ‘r /-spÉ‘Ë n. any of a group of alumino-silicates, feldspar (Mineralogy)
English contemporary dictionary. 2014.
felspars
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Geochemistry — The field of geochemistry involves study of the chemical composition of the Earth and other planets, chemical processes and reactions that govern the composition of rocks and soils, and the cycles of matter and energy that transport the Earth s… … Wikipedia
felsic — /ˈfɛlsɪk/ (say felsik) adjective 1. of or relating to light coloured rocks containing an abundance of such minerals as felspar, felspathoid and silica. 2. of or relating to the minerals themselves such as quartz, felspars, felspathoids and… …
felspathoid — /ˈfɛlspəθɔɪd/ (say felspuhthoyd) noun any of a group of minerals, as leucite, which are similar in composition to felspars but contain less silica than the corresponding felspar …
lamprophyre — /ˈlæmprəfaɪə/ (say lampruhfuyuh) noun a group of dark dyke rocks in which dark minerals occur both as phenocrysts and in the groundmass, and light coloured minerals occur in the groundmass; the essential constituents are biotite, hornblende,… …
