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Moonstone
Moonstone

Phosgenite
Phosgenite



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Moonstone
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Phosgenite

Moonstone and Phosgenite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Adamantine
1.2 Pleochroism
AbsentWalter Schumann
Weakly pleochroic with O reddish and E greenish in thick sections.
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Transparent to translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.518-1.5272.117-2.145
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
tetragonal
1.8 Birefringence
0.006-0.0070.027
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Moonstone and Phosgenite Optic Character

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

Moonstone and Phosgenite Transparency

Similar to their colors, Moonstone 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, Moonstone is Transparent and Transparent to translucent while Moonstone is Transparent and Transparent to translucent in appearance.