feldspar
pronunciation
How to pronounce feldspar in British English:
UK [ˈfeldspɑ:(r)]
How to pronounce feldspar in American English:
US [ˈfɛldˌspɑr, ˈfɛl-]
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- Noun:
- any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium
Word Origin
- feldspar (n.)
- type of mineral common in crystalline rocks, 1785, earlier feldspath (1757), from older German Feldspath (Modern German Feldspat), from Feld "field" (see field (n.)) + spath "spar, non-metallic mineral, gypsum" (see spar (n.2)); spelling influenced by English spar "mineral." Related: Feldspathic.
Example
- 1. Potassium feldspar and evaluation of the processes .
- 2. Of or related to albite feldspar .
- 3. Aventurine is a combination of two gems named plagioclase feldspar and the other is quartz .
- 4. Ock , consisting of hornblende , or pyroxene , and feldspar , but neither of them in perceptible grains .
- 5. Surrounding rock is mainly compiling tuff , its apparent syndactyly and is dark volcanic programming reseda , false plagioclase , natrium feldspar and green shade stone wei crystal mixture , makes the surrounding rock is called hard rock hard grind .