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Dioptase
Dioptase

Pyrope
Pyrope



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Dioptase
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Pyrope

Dioptase and Pyrope Optical Properties

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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
 
Greasy, Vitreous
None
0.02
-
1.720-1.756
-
cubic
-9999
TransparentUlrich Henn and Claudio C. Milisenda

Dioptase and Pyrope Optic Character

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

Similar to their colors, Dioptase and Pyrope 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.