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A white or colored monoclinic feldspar
Answer for the clue "A white or colored monoclinic feldspar ", 10 letters:
orthoclase
Word definitions for orthoclase in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Orthoclase \Or"tho*clase\, n. [Ortho- + Gr. ? to break.] (Min.) Common or potash feldspar crystallizing in the monoclinic system and having two cleavages at right angles to each other. See Feldspar .
WordNet
Word definitions in WordNet
n. a white or colored monoclinic feldspar
Wikipedia
Word definitions in Wikipedia
Orthoclase, or orthoclase feldspar ( endmember formula K Al Si O ), is an important tectosilicate mineral which forms igneous rock . The name is from the Ancient Greek for "straight fracture," because its two cleavage planes are at right angles to each ...
Wiktionary
Word definitions in Wiktionary
n. (context mineralogy English) potassium aluminum silicate, potassiumaluminumsilicon 3 oxygen 8 , a common feldspar of igneous, plutonic, and metamorphic rocks. Orthoclase is the main feldspar of pegmatite occurrences, where it is most commonly flesh-colored. ...
Usage examples of orthoclase.
Thariinye adjusted the assembler to produce other silicates such as tourmaline and iolite, orthoclase and microcline.
In the hand specimen it is an apparently pure orthoclase but in the thin section small scattered quartz grains are observed.