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Dioptase
Dioptase

Montebrasite
Montebrasite



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Dioptase
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Montebrasite

Dioptase and Montebrasite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Weak; dark emerald green
0.04
TranslucentHerve Nicolas Lazzarelli
1.644-1.720
-
Trigonal
0.051-0.053
TranslucentHerve Nicolas Lazzarelli
 
-
-
0.02
TransparentWalter Schumann
1.578-1.646
-
-
0.020-0.030
TransparentWalter Schumann

Dioptase and Montebrasite Optic Character

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

Similar to their colors, Dioptase and Montebrasite 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 while Dioptase is in appearance.