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Seraphinite
Seraphinite

Dravite
Dravite



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Seraphinite
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Dravite

Seraphinite and Dravite Optical Properties

1 Optical Properties
1.1 Luster
Pearly, Greasy
Vitreous
1.2 Pleochroism
Not Available
Very strong: pale yellow colorless
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.571-1.5971.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Not Available
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
1.8 Birefringence
Not Available0.014-0.032
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Seraphinite and Dravite Optic Character

Seraphinite and Dravite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Seraphinite and Dravite 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 Seraphinite and Dravite 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. Seraphinite has Biaxial/+ character.

Seraphinite and Dravite Transparency

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