2.8-3.2 on Moh's hardness scale
Muscovite mica has perfect cleavage in one direction. It splits into thin sheets.
The ore of mica is called "muscovite." It is a type of mica mineral that is commonly found in metamorphic and igneous rocks. Muscovite is known for its pearlescent luster and excellent cleavage properties.
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 has a Mohs hardness of 2.5-3.0.
Biotite and Muscovite.
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.
Biotite mica contains iron and/or magnesium, but muscovite mica does not.
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Mica
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.
Muscovite mica's dominant type of breakage is perfect basal cleavage, which means it breaks easily along flat planes parallel to its basal structure. This results in thin, flexible sheets of mica being formed when it breaks.
No, Muscovite cannot scratch glass. Muscovite has a hardness of around 2.5-3 on the Mohs scale, while glass has a hardness of around 5.5, meaning glass is harder than Muscovite.
Muscovite
Mica