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Dioptase
Dioptase

Riebeckite
Riebeckite



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Dioptase
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Riebeckite

Dioptase and Riebeckite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Silky
1.2 Pleochroism
Weak; dark emerald green
X = blue
1.3 Dispersion
0.04NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TranslucentHerve Nicolas Lazzarelli
Not Available
1.5 Refractive Index
1.644-1.7201.680-1.698
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
monoclinic
1.8 Birefringence
0.051-0.0530.005-0.008
Achroite
0 0.296
1.9 Clarity
TranslucentHerve Nicolas Lazzarelli
Not Available

Dioptase and Riebeckite Optic Character

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

Similar to their colors, Dioptase and Riebeckite 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.