mi·cro·cline (m  kr -kln )n. A mineral of the feldspar group, chiefly KAlSi3O8, used in making glass, porcelain, and enamel. [Greek m kro-, micro- (from the fact that its cleavage angle is not exactly equal to 90°) + Greek klnein, to lean; see cline.] |
microcline [ˈmaɪkrəʊˌklaɪn]
n
(Earth Sciences / Minerals) 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: KAlSi3O8. Crystal structure: triclinic
[from German Mikroklin, from mikro- micro- + Greek klinein to lean; so called because its cleavage plane is slightly different from 90°]
| microcline (mkr-kln) 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. |
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