different between feldspar vs phonolite

feldspar

English

Alternative forms

  • felspar

Etymology

Partial calque of German Feldspat, formed from Feld (field) + Spat (spar).

Noun

feldspar (countable and uncountable, plural feldspars)

  1. (mineralogy) Any of a large group of rock-forming minerals that, together, make up about 60% of the earth's outer crust. The feldspars are all aluminum silicates of the alkali metals sodium, potassium, calcium and barium. Feldspars are the principal constituents of igneous and plutonic rocks.

Derived terms

Related terms

  • feldspathic
  • feldspathoid
  • feldspathose

Translations

See also

  • albite
  • bytownite
  • andesine
  • anorthite
  • granite
  • labradorite
  • microcline
  • mineral
  • oligoclase
  • orthoclase
  • rock

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phonolite

English

Etymology

phono- +? -lite, from the metallic sound when it is hit.

Noun

phonolite (plural phonolites)

  1. (mineralogy) a light-coloured rock of volcanic origin composed mostly of alkali feldspars

Derived terms

  • phonolitic

Synonyms

  • clinkstone

Translations

Anagrams

  • in the loop, lithopone

phonolite From the web:

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  • what is phonolite in geology
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