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Muscovite
Muscovite

Anthophyllite
Anthophyllite



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Muscovite
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Anthophyllite

Muscovite and Anthophyllite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Silky, Pearly
Vitreous, Pearly
1.2 Pleochroism
Weak
When Fe-rich
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.552-1.6181.603-1.690
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
monoclinic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Muscovite and Anthophyllite Optic Character

Muscovite and Anthophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Muscovite and Anthophyllite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Muscovite and Anthophyllite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character. Anthophyllite has Biaxial/+ character.

Muscovite and Anthophyllite Transparency

Similar to their colors, Muscovite and Anthophyllite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Muscovite is Transparent while Muscovite is Transparent in appearance.