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Cuprite
Cuprite

Phenakite
Phenakite



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Cuprite
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Phenakite

Cuprite and Phenakite Optical Properties

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1 Optical Properties
1.1 Luster
Adamantine
Vitreous
1.2 Pleochroism
visible
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
TranslucentWalter Schumann
Gemmological Tables (2004) More from other references
1.5 Refractive Index
2.8491.650-1.695
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
Trigonal
1.8 Birefringence
Not Available0.016
Achroite
0 0.296
1.9 Clarity
TranslucentWalter Schumann
TransparentUlrich Henn and Claudio C. Milisenda

Cuprite and Phenakite Optic Character

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

Similar to their colors, Cuprite and Phenakite 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.