Microcline which is composed of Potassium Aluminum Silicate, is classified as a tectosilicate mineral in the feldspar group. A greenish-blue variety known as "Amazonite" is popular with mineral collectors as well as for use as a semi-precious stone by jewelers and as an ornamental stone. Microcline is a significant component of many granites, syenites (rocks that are similar to granite), and gneisses, and is often found in association with muscovite, plagioclase feldspars, and quartz. It can vary in color from off-white to pale yellow, pink, brown, or green. It has a vitreous to pearly or dull luster and a white streak.
KAlSi3O8 |
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