About Muscovite
A common potassium aluminum phyllosilicate (mica group), known for its perfect basal cleavage into thin, flexible sheets, often colorless to silvery. It's a stone of reflection, angelic connection, and self-awareness. (Fuchsite is green Cr-rich, Lepidolite is Li-rich).
Primary Hues
Colorless, White, Silver-White, Grey, Yellowish, Brownish, Greenish, Pinkish, forms platy sheets
Geological & Scientific Details
Muscovite is classified as a phyllosilicate minerals, mica group mineral which typically crystallizes in the monoclinic system. Its chemical formula is KAl2(AlSi3O10)(F,OH)2. Common crystal habits include massive to platy.
Key Geological Properties:
- Mineral Category: Phyllosilicate minerals, mica group
- Chemical Formula: KAl2(AlSi3O10)(F,OH)2
- IMA Symbol: Ms[1]
- Crystal System: Monoclinic
- Predominant Geological Color: White, grey, silvery
- Crystal Habit: Massive to platy
- Twinning: Common on the [310], less common on the {001}
- Cleavage: Perfect on the {001}
- Luster: Vitreous, silky, pearly
- Streak: White
- Diaphaneity: Transparent to translucent
Associated Minerals
- Mica
- Biotite
- Phlogopite
- Lepidolite
- Fuchsite
- Quartz
- Feldspar
- Orthoclase
- Microcline
- Albite
- Tourmaline
- Beryl