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Dioptase
Dioptase

Taaffeite
Taaffeite



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Dioptase
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Taaffeite

Dioptase and Taaffeite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Weak; dark emerald green
Weak
1.3 Dispersion
0.040.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
TranslucentHerve Nicolas Lazzarelli
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.644-1.7201.70-1.73
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Hexagonal
1.8 Birefringence
0.051-0.0530.055
Achroite
0 0.296
1.9 Clarity
TranslucentHerve Nicolas Lazzarelli
Color grading system

Dioptase and Taaffeite Optic Character

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

Similar to their colors, Dioptase and Taaffeite 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.