Alkali feldspar



alkali feldspar
alkali feldspar
Any of several feldspar minerals containing alkali metals and little calcium. Plagioclase, orthoclase and microcline are alkali feldspars.

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  • Alkali flat

    a level area, as a dry lake bed, in which evaporation has concentrated alkali minerals, as sodium sulfates and carbonates. Historical Examples Ride down the barranca two hundred yards and you’ll come to an alkali flat. The Killer Stewart Edward White The rear of the saloon was partitioned off into a “Ladies’ Room,” whose door […]

  • Alkali grass

    a plant, Zigadenus elegans, of central and western North America, having tough, wiry, bluish-green leaves and greenish flowers.



  • Alkali metaprotein

    a metaprotein derived by means of a hydrolytic alkali.

  • Alkali-loving

    (of a plant) requiring a pH of 7.1 to 9 for optimal growth.



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