Dioptase and Californite Optical Properties

Dioptase

Californite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Weak; dark emerald green

Weak; present colour lighter

1.3 Dispersion

0.04NA

0.007 1

1.4 Transparency

TranslucentHerve Nicolas Lazzarelli

TranslucentWalter Schumann, Gemstones of the world (2001)

1.5 Refractive Index

1.644-1.7201.700-1.725

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Not Available

1.8 Birefringence

0.051-0.0530.001-0.012

0 0.296

1.9 Clarity

TranslucentHerve Nicolas Lazzarelli

TranslucentWalter Schumann

Dioptase and Californite Optic Character

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

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Dioptase and Californite Transparency

Similar to their colors, Dioptase and Californite 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.