microcline


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Related to microcline: sanidine, orthoclase

mi·cro·cline

 (mī′krō-klīn′)
n.
A whitish gray, pink or green triclinic mineral of the potassium feldspar group that forms from relatively low-temperature magmas.

[German Mikroklin : mikro-, micro- (from the fact that its cleavage angle is not exactly equal to 90°) + Greek klīnein, to lean; see cline.]

microcline

(ˈmaɪkrəʊˌklaɪn)
n
(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
[C19: from German Mikroklin, from mikro- micro- + Greek klinein to lean; so called because its cleavage plane is slightly different from 90°]

mi•cro•cline

(ˈmaɪ krəˌklaɪn)

n.
a mineral of the feldspar group, potassium aluminum silicate, KAlSi3O8, chemically identical with orthoclase but differing in internal structure: used in making porcelain.
[1840–50; micro- + -cline < Greek klinein to lean1, referring to the angles between its cleavage planes, which differ slightly from 90°]

mi·cro·cline

(mī′krō-klīn′)
A type of feldspar consisting of potassium aluminum silicate. Microcline is white, pink, red-brown, or green.
References in periodicals archive ?
The material of rupture (chamotte) is formed mainly of quartz and amorphous phase, with small amounts of hematite, microcline and anortithe (calcium feldspar).
Feldspars are mainly represented by microcline and albite, followed by orthoclase and sanidine in some samples (Table 1).
SA-11-36 Schmidt et Silcrete outcrops with trace Microcline and al.
2]O present in the phonolite may be due to the predominance of some constituent minerals such as: microcline (KAI[Si.
Perthite, albite, quartz, and sparse microcline are accompanied by small quantities of opaque oxide, with or without biotite, titanite and secondary minerals (Fig.
Specimens displayed include apatite, calcite, corundum, fluorite, gypsum, jadeite, kyanite, microcline, muscovite, quartz, sulfur, topaz, and tourmaline.
2008); potassium sources such as illite, biotite and microcline (Zhou & Huang, 2007); and even biotite and phlogopite bacterial dissolution (Balland, Pozwa, Leywal, & Mustin, 2010).
the country rock) in close proximity to the intrusions has been fenitized to varying degrees, producing quartz syenite, alkali syenite, nepheline syenite, pyroxene nephelinite, microcline syenite and albite syenite.
Feldspars: This category included single crystals of K-feldspar, microcline and plagioclase, as well as potassium feldspar and plagioclase included in intraclasts, phaneritic rock fragments, and sedimentary rock fragments (meta-arenites).
After the analyses, the soil minerals found were: quartz, calcite, sanidine, albite, nontronite, muscovite, montmorillonite, hematite, faujasite, dolomite, microcline, anorthite, anorthoclase, clinochlore and epidote.
6%) Microcline often intergrown graphically and are sometimes perthitic with albite occurring as patchy perthite.
Compositionally alkali feldspar exposed in Mansehra area is mainly composed of albeit and microcline with some orthoclase [22].