abstract
| - It is not an officially classified mineral, but is a chromium-rich phengite, which is a high silica variety of muscovite, a mica. The chemical formula is K(Al,Cr)2(Al,Si)4O10(OH)2. It is the chromium that gives it its distinctive green color. The term "mariposite" also refers to the stone in which the green mica is found. This stone is marble, containing varying amounts of dolomite and quartz. Larger proportions of quartz give it a more attractive, translucent appearance. It is used as a decorative construction material, in walls, monuments, and bridges. It is also made into jewelry. This jewelry is sometimes sold under the trade name "Emerald Quartz".
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