microcline
[ mahy-kruh-klahyn ]
/ ˈmaɪ krəˌklaɪn /
noun
a mineral of the feldspar group, potassium aluminum silicate, KAlSi3O8, identical in composition with orthoclase but having triclinic instead of monoclinic crystals, used in making porcelain.
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Words nearby microcline
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Example sentences from the Web for microcline
At Danbury the mineral occurs with microcline and oligoclase embedded in dolomite.
The felspar of the granulites is mostly orthoclase or cryptoperthite; microcline, oligoclase and albite are also common.
Orthoclase and microcline feldspar are used in the manufacture of porcelain and chinaware.
Geology|William J. Miller
British Dictionary definitions for microcline
microcline
/ (ˈmaɪkrəʊˌklaɪn) /
noun
a white, creamy yellow, red, or green mineral of the feldspar group, found in igneous, sedimentary, and metamorphic rocks: used in the manufacture of glass and ceramics. Composition: potassium aluminium silicate. Formula: KAlSi 3 O 8 . Crystal structure: triclinic
Word Origin for microcline
C19: from German Mikroklin, from mikro- micro- + Greek klinein to lean; so called because its cleavage plane is slightly different from 90°
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Scientific definitions for microcline
microcline
[ mī′krō-klīn′ ]
A white, pink, red-brown, or green type of potassium feldspar. It is dimorphous with orthoclase feldspar, differing from it in shape and in the fact that it forms at lower temperatures.Chemical formula: KAlSi3O8.
The American Heritage® Science Dictionary
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