Your question is unclear. Muscovite is not a group name, but there are a number of polytypes, as listed by Fleischer's Glossary, 2008: -2M1, -1M, , and -2M2.
The micas are divided into three main subgroups: true micas, brittle micas, and interlayer-deficient micas. These total about 44 species.
There are also six incompletely investigated micas that are now considered to be series.
Muscovite (clear) and Biotite (black) are the commonest mica forms. Fuchsite (green) is an unusual mica containing chromium. Please see the related link below for a listing of the mica group of minerals.
Muscovite mica has perfect cleavage in one direction. It splits into thin sheets.
Yes, muscovite is a silicate mineral. It belongs to the phyllosilicate group, which consists of minerals with a sheet-like structure. Muscovite is a common mica mineral that is composed of potassium, aluminum, silicon, oxygen, and hydrogen.
Muscovite mica has a hardness of around 2-2.5 on the Mohs scale.
Biotite is typically darker in color compared to muscovite, and it has higher iron and magnesium content, which gives it a higher specific gravity. Biotite also exhibits stronger pleochroism compared to muscovite, meaning it shows more noticeable color variations when viewed from different angles. Additionally, biotite has a higher tendency to cleave into thin, flexible sheets compared to muscovite.
Mica is a group of sheet silicate minerals (e.x of micas : Biotite, muscovite)
Muscovite (clear) and Biotite (black) are the commonest mica forms. Fuchsite (green) is an unusual mica containing chromium. Please see the related link below for a listing of the mica group of minerals.
Biotite mica contains iron and/or magnesium, but muscovite mica does not.
Iron is present in biotite mica but not in muscovite mica.
Mica :)
Muscovite mica has perfect cleavage in one direction. It splits into thin sheets.
A good example of a mineral with basal cleavage are those from the mica group such as muscovite and biotite
Yes, muscovite is a silicate mineral. It belongs to the phyllosilicate group, which consists of minerals with a sheet-like structure. Muscovite is a common mica mineral that is composed of potassium, aluminum, silicon, oxygen, and hydrogen.
Muscovite mica has a hardness of around 2-2.5 on the Mohs scale.
The dominant type of breakage for muscovite mica is basal cleavage, which means it breaks easily along its cleavage planes into thin sheets. This property is due to the crystal structure of muscovite mica, which consists of layers that are weakly bonded and easily separated.
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