Associations to the word «Feldspar»

Wiktionary

FELDSPAR, noun. (mineral) 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.

Dictionary definition

FELDSPAR, noun. Any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium.

Wise words

A word is not a crystal, transparent and unchanged; it is the skin of a living thought and may vary greatly in color and content according to the circumstances and time in which it is used.
Oliver Wendell Holmes, Jr.