Muscovite (also known as common mica, isinglass, or potash mica [6]) is a hydrated phyllosilicate mineral of aluminium and potassium with formula KAl 2 (AlSi 3 O 10)(F,OH) 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.Sheets of muscovite 5 meters × 3 …

What is Muscovite? 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 …

ID Species Reference Link Year Locality Pressure (GPa) Temp (K) 0000854: Muscovite: Richardson S M, Richardson J W (1982) Crystal structure of a pink muscovite from Archer's Post, Kenya: Implications for reverse pleochroism in dioctahedral micas American Mineralogist 67 69-75 1982: 0: 293: 0001076: Muscovite: Guggenheim S, Chang Y H, Koster van Groos A F (1987) Muscovite dehydroxylation: High ...

Sep 9, 2023 · Muscovite is a common mineral that belongs to the mica group. It is a silicate mineral that is characterized by its thin, sheet-like structure. Muscovite is composed of potassium (K), aluminum (Al), silicon (Si), and oxygen (O) atoms arranged in sheets, and it is known for its excellent cleavage, which allows it to be easily split into thin, flexible sheets.

The meaning of MUSCOVITE is a native or resident of the ancient principality of Moscow or of the city of Moscow.

muscovite, abundant silicate mineral that contains potassium and aluminum. Muscovite is the most common member of the mica group. Because of its perfect cleavage, it can occur in thin, transparent, but durable sheets.Sheets of muscovite were used in Russia for windowpanes and became known as Muscovy glass (isinglass), hence its common name. Muscovite typically occurs in metamorphic rocks ...

A common, widely distributed, rock-forming mineral, muscovite is a significant component of most granites, granite pegmatites, and many hydrothermal deposits.

Muscovite Optical Properties . Fluorescence: Weak to moderate fluorescence under long-wave ultraviolet light - Can appear blue or green. Pleochroism: Weak - Slight variations in color depending on the viewing direction due to its layered structure. Refractive Index: 1.56-1.59 - A measure of how light bends when passing through the mineral. Muscovite Additional Properties

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 …

Jun 12, 2014 · Chemical Formula: KAl 2 (AlSi 3 O 10)(OH) 2 Locality: Common world wide. Name Origin: From Muscovy glass, alluding to the Russian province of Muscovy. Muscovite is a phyllosilicate mineral of aluminium and potassium . It has a highly-perfect basal cleavage yielding remarkably-thin laminæ (sheets) which are often highly elastic.