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Muscovite
Muscovite

Phosgenite
Phosgenite



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Muscovite
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Phosgenite

Muscovite and Phosgenite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Silky, Pearly
Adamantine
1.2 Pleochroism
Weak
Weakly pleochroic with O reddish and E greenish in thick sections.
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
2.5 Transparency
Transparent
Gemmological Tables (2004) More from other references
2.6 Refractive Index
1.552-1.6182.117-2.145
Agate Opal
1 3.25
3.4 Optic Character
Not Available
Not Available
3.5 Crystal System
monoclinic
tetragonal
3.6 Birefringence
Not Available0.027
Achroite
0 0.296
3.7 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Muscovite and Phosgenite Optic Character

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

Similar to their colors, Muscovite and Phosgenite 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.