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Creedite
Creedite

Dioptase
Dioptase



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Creedite
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Dioptase

Creedite and Dioptase Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Weak; dark emerald green

Dispersion

0.020.04
0.005 1
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Transparency

Transparent, Translucent
TranslucentHerve Nicolas Lazzarelli

Refractive Index

1.461-1.4851.644-1.720
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
Trigonal

Birefringence

0.0240.051-0.053
0 0.296
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Clarity

Transparent
TranslucentHerve Nicolas Lazzarelli

Creedite and Dioptase Optic Character

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

Creedite and Dioptase Transparency

Similar to their colors, Creedite and Dioptase 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, Creedite is Transparent and Translucent while Creedite is Transparent and Translucent in appearance.