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Muscovite
Muscovite

Almandine
Almandine



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Muscovite
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Almandine

Muscovite and Almandine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Silky, Pearly
Greasy, Vitreous
1.2 Pleochroism
Weak
None
1.3 Dispersion
NA0.03
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.552-1.6181.770-1.820
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
cubic
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Muscovite and Almandine Optic Character

Muscovite and Almandine optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Muscovite and Almandine 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 Almandine 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.

Muscovite and Almandine Transparency

Similar to their colors, Muscovite and Almandine 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.