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Moonstone

Purpurite
Purpurite



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Moonstone and Purpurite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Not Available
1.2 Pleochroism
AbsentWalter Schumann
StrongArthur Thomas
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Transparent to translucent
TranslucentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
1.518-1.527
1.85-1.92
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.006-0.007
0.070
1.9 Clarity
Transparent
TranslucentWalter Schumann

Moonstone and Purpurite Optic Character

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

Moonstone and Purpurite Transparency

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