Friday, June 23, 2023

Margarite Mica Information

 

Margarite Information

Physical Properties

  • Chemical formula: CaAl2(Al2Si2O10)(OH)2
  • Color: White, yellowish-white, greenish-white, grayish-white
  • Crystal habit: Crystals flattened on {100}, to 3 cm; rosettes and aggregates of prismatic crystals
  • Hardness: 2.5 - 3
  • Cleavage: {001} perfect, {100} imperfect
  • Luster: Vitreous to pearly

Optical Properties

  • Refractive index: nฮฑ = 1.600 - 1.616 nฮฒ = 1.605 - 1.620 nฮณ = 1.615 - 1.630
  • Birefringence: ฮด = 0.015 - 0.014
  • Pleochroism: Weak
  • Dispersion: r > v, moderate

Occurrence by Country

CountryOccurrences
CanadaQuebec
FranceAlps, Haute-Savoie
RussiaUrals, Polar region
SwitzerlandAlps, Ticino
USACalifornia, Maine, North Carolina

Healing Properties

Margarite is said to have the following healing properties:

  • Helps with emotional healing
  • Enhances intuition and psychic abilities
  • Stimulates the immune system
  • Helps alleviate allergies and skin conditions

Uses

Margarite is used in the following ways:

  • As a gemstone for jewelry
  • As a mineral specimen for collectors
  • As a source of aluminum and calcium
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