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Muscovite
Muscovite

Purpurite
Purpurite



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Muscovite
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Purpurite

Muscovite and Purpurite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Silky, Pearly
Not Available
1.2 Pleochroism
Weak
StrongArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
TranslucentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
1.552-1.6181.85-1.92
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
Not Available0.070
Achroite
0 0.296
1.9 Clarity
Transparent
TranslucentWalter Schumann

Muscovite and Purpurite Optic Character

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

Similar to their colors, Muscovite and Purpurite 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.