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Dioptase
Dioptase

Brucite
Brucite



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Dioptase
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Brucite

Dioptase and Brucite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Weak; dark emerald green
-

Dispersion

0.040.03
0.005 1
👆🏻

Transparency

TranslucentHerve Nicolas Lazzarelli
TransparentMichael O’Donoghue

Refractive Index

1.644-1.7201.56-1.60
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Trigonal

Birefringence

0.051-0.0530.010-0.020
0 0.296
👆🏻

Clarity

TranslucentHerve Nicolas Lazzarelli
TransparentMichael O’Donoghue

Dioptase and Brucite Optic Character

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

Similar to their colors, Dioptase and Brucite 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.