English words starting with feld
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Meanings of Feldspar:
nounAn abundant rock-forming mineral typically occurring as colourless or pale-coloured crystals and consisting of aluminosilicates of potassium, sodium, and calcium.
Usage examples:
Quartz is associated most commonly with aegirine and potassium feldspar as well as zircon.
Meanings of Feldspars:
nounAn abundant rock-forming mineral typically occurring as colourless or pale-coloured crystals and consisting of aluminosilicates of potassium, sodium, and calcium.
Usage examples:
Quartz is associated most commonly with aegirine and potassium feldspar as well as zircon.
Meanings of Feldspathic:
adjective(of a mineral or rock) of the nature of or containing feldspar.
Usage examples:
Neither sample showed optical evidence for postformation alteration in the form of chloritized vein…
Meanings of Feldspathoid:
nounAny of a group of minerals chemically similar to feldspar but containing less silica, such as nepheline and leucite.
Usage examples:
The three commonest feldspathoids are leucite, nepheline, and sodalite.
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