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Dravite
Dravite

Aquamarine
Aquamarine



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Dravite
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Aquamarine

Dravite and Aquamarine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Very strong: pale yellow colorless
Not Available
1.3 Dispersion
0.020.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.614-1.6661.570-1.592
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
Hexagonal
1.8 Birefringence
0.014-0.0320.005-0.009
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent to translucent

Dravite and Aquamarine Optic Character

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

Similar to their colors, Dravite and Aquamarine 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.