Muscovite is an extremely common mineral, nevertheless there are some exceptional localities that need to be mentioned. Outstanding Muscovite crystals, some bright yellow and others with perfect star formations, come from the famous pegmatite localites in the Doce and Jequitinhonha Valleys in Minas Gerais Brazil. Specific localities include ...
Muscovite (also known as common mica, isinglass, or potash mica) is a hydrated phyllosilicate mineral of aluminium and potassium with formula K Al 2 (AlSi 3 O 10)(FOH) 2, or 2 (Al 2 O 3) 3 (SiO 2) 6 (H 2 O). It has a highly perfect basal cleavage yielding remarkably thin laminae (sheets) which are often highly elastic.
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Muscovite is the most common mineral of the mica family. It is an important rock-forming mineral present in igneous, metamorphic, and sedimentary rocks. Like other micas it readily cleaves into thin transparent sheets. Muscovite sheets have a pearly to vitreous luster on their surface. If they are held up to the light, they are transparent and ...
A pseudomorph of fine-grained muscovite ("sericite") after orthoclase, found in kaolinized granite. Rubidian Muscovite: Rubidium-bearing muscovite with Rb2O contents of 1 and more mass%. Usual rock forming mineral in late stages of the evolution of many granitic rare-metal (Ta,Be,Cs) natro-lithian pegmatites. Schernikite
Muscovite and Fuchsite. Muscovite is a common rock-forming mineral. It is a type of mica found in many types of igneous and metamorphic rock. It is easily recognized because of its perfect cleavage that allows it to separate into thin, transparent, flexible sheets.
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— Major mineral in kink-banded muscovite-chlorite schist and muscovite quartzite exposed in a small quarry along Co. M in NE sec. 1 T.26N. R.4W., N of the South Fork of the Eau Claire River (Myers, 1977; WGNHS outcrop description).
Fuchsite, also known as chrome mica, is a chromium (Cr) rich variety of the mineral muscovite, belonging to the mica group of phyllosilicate minerals, with the following formula: K(Al,Cr) 2 (AlSi 3 O 10)(OH) 2. Trivalent chromium replaces one of the aluminium (Al) atoms in the general muscovite formula producing the apple green hue distinctive ...
Muscovite is an excellent stone to help you if you have experienced any negative effects from the opening up of your psychic abilities or gifts. Side effects caused by very rapid awakening of your psychic gifts may be alleviated by this stones unique energy, and it is also highly protective.