nephelite elaeolite syenite

nephelite elaeolite syenite
Syenite Sy"e*nite, n. [L. Syenites (sc. lapis), from Syene, Gr. ?.] (Min.) (a) Orig., a rock composed of quartz, hornblende, and feldspar, anciently quarried at Syene, in Upper Egypt, and now called {granite}. (b) A granular, crystalline, ingeous rock composed of orthoclase and hornblende, the latter often replaced or accompanied by pyroxene or mica. Syenite sometimes contains nephelite (el[ae]olite) or leucite, and is then called {nephelite (el[ae]olite) syenite} or {leucite syenite}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Nepheline — General Category Silicate mineral Chemical formula (Na,K)AlSiO4 …   Wikipedia

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