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Dravite
Dravite

Moonstone
Moonstone



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Dravite
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Moonstone

Dravite and Moonstone Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Pearly
1.2 Pleochroism
Very strong: pale yellow colorless
AbsentWalter Schumann
1.3 Dispersion
0.02None
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent, Transparent to translucent
1.5 Refractive Index
1.614-1.6661.518-1.527
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
monoclinic
1.8 Birefringence
0.014-0.0320.006-0.007
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Dravite and Moonstone Optic Character

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

Dravite and Moonstone Transparency

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