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Cuprite
Cuprite

Dravite
Dravite



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Cuprite
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Dravite

Cuprite and Dravite Optical Properties

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1 Optical Properties
1.1 Luster
Adamantine
Vitreous
1.2 Pleochroism
visible
Very strong: pale yellow colorless
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
TranslucentWalter Schumann
Transparent
1.5 Refractive Index
2.8491.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
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
TranslucentWalter Schumann
Transparent

Cuprite and Dravite Optic Character

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

Cuprite and Dravite Transparency

Similar to their colors, Cuprite 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, Cuprite is TranslucentWalter Schumann while Cuprite is TranslucentWalter Schumann in appearance.