Minerals

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General Information

Muscovite

Muscovite is a mineral belonging to the group of micas and is a hydrated potassium-aluminum-phylosilicate.[1]

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Chemical & Physical Information

Trivial NameMuscovite
Chemical NamePotassium Aluminum Phylosilicate
Chemical FormulaKAl2(AlSi3)O10(OH)2
Density2,82 g·cm-3
Molar mass?
Hardness2-2,5
Crytal systemMonoclinic
Unit cell?
Crystal habit?
Fracture?
CleavagePerfect [001]
ColourWhite, grey, silvery, brown white or green white.
LusterGlass
StreakWhite
OpacityTransparent to translucent.
SafetySafe
ExtraBuild from very thin layers.
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Photos

Muscovite

(3 cm)

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Sources

[1] Wikipedia

[2] Specimen from my personal collection, photo taken by me.