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Dioptase
Dioptase

Tanzanite
Tanzanite



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Tanzanite

Dioptase and Tanzanite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Weak; dark emerald green
Present
1.3 Dispersion
Albite Optical ..
0.04
Rank: 13 (Overall)
0.03
Rank: 14 (Overall)
Fluorite Optical Properties
1.4 Transparency
TranslucentHerve Nicolas Lazzarelli
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.644-1.720
1.685-1.707
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.051-0.053
0.006-0.018
1.9 Clarity
TranslucentHerve Nicolas Lazzarelli
TransparentUlrich Henn and Claudio C. Milisenda

Dioptase and Tanzanite Optic Character

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

Dioptase and Tanzanite Transparency

Similar to their colors, Dioptase and Tanzanite 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, Dioptase is TranslucentHerve Nicolas Lazzarelli while Dioptase is TranslucentHerve Nicolas Lazzarelli in appearance.