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Entry № 288

Muscovite

Potassium mica

Silvery pages of the earth's lightest book.

Chakra

Third Eye · Heart

Element

Air · Earth

Zodiac

Aquarius · Leo

Muscovite

I. The Metaphysical Reading

How the stone has been held.

Muscovite is worked with as a stone of reflection, self-recognition and problem-solving. Its perfect basal cleavage into thin sheets is read as an image of the mind separating tangled situations into clear, workable layers.

Chakra
Third Eye · Heart
Element
Air · Earth
Zodiac
Aquarius · Leo
Keynote
Silvery pages of the earth's lightest book.

II. The Scientific Reading

What the lattice actually does.

Muscovite is the most common member of the mica group, a potassium aluminum silicate with perfect basal cleavage that splits into thin, transparent, elastic sheets. It occurs widely in granitic and pegmatitic rocks and in low- to medium-grade metamorphic rocks such as schist and gneiss.

Formula
KAl₂(AlSi₃O₁₀)(OH)₂
System
Monoclinic
Hardness
2 – 2.5 (Mohs)
Provenance
Brazil, India, Russia, USA

References & Sources

Independent mineralogical references used to verify the scientific details above.

Mineral Profile

Fact Sheet

Chemical Formula
KAl₂(AlSi₃O₁₀)(OH)₂
Crystal System
Monoclinic
Mohs Hardness
2 – 2.5 (Mohs)
Density
2.76 – 3.00 g/cm³
Refractive Index
1.552 – 1.618
Provenance
Brazil, India, Russia, USA
Color Origin
Silvery colorless, sometimes greenish or pink

Related Crystals

Stones that share this lattice

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Next in the Atlas

Natrolite

Fine white needles of the volcanic cavity.