- 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.
Origin of microcline
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for microcline
At Danbury the mineral occurs with microcline and oligoclase embedded in dolomite.
The common color of microcline is white to pale yellow, but occasionally green and red occur.
Orthoclase and microcline feldspar are used in the manufacture of porcelain and chinaware.Geology
William J. Miller
The felspar of the granulites is mostly orthoclase or cryptoperthite; microcline, oligoclase and albite are also common.
- 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
C19: from German Mikroklin, from mikro- micro- + Greek klinein to lean; so called because its cleavage plane is slightly different from 90°
- 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.