Dictionary.com
Thesaurus.com

felspar

American  
[fel-spahr] / ˈfɛlˌspɑr /

noun

  1. feldspar.


felspar British  
/ fɛlˈspæθɪk, ˈfɛlˌspɑː /

noun

  1. a variant (esp Brit) of feldspar

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • felspathic adjective

Etymology

Origin of felspar

< German Fels rock + spar 3, by false etymological analysis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Everywhere were little grains of felspar, mica, or quartz, which caught the reflection of the light.

From Project Gutenberg

It turned evenly, slowly, noiselessly, and, as it turned, the light from the lamp caused the quartz and mica and felspar in the granite to glisten like a thousand fire-flies on a summer's evening.

From Project Gutenberg

Each mineral may also enclose particles of the others; in the quartz, for example, small crystals of graphite, biotite, iron oxides, sillimanite or felspar may appear in great numbers.

From Project Gutenberg

In it the felspar retains its alkaline element, so that it can be easily melted, and is found a useful and cheap flux for the vitrification of the different mixtures.

From Project Gutenberg

Their felspar ranges from oligoclase to andesite and labradorite, and is often very zonal; sanidine occurs also in some dacites, and when abundant gives rise to rocks which form transitions to the rhyolites.

From Project Gutenberg