Rhodochrosite and Kyanite Cyprine Optical Properties

Rhodochrosite

Kyanite Cyprine

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Weak

Blue stones strong trichroism: colorless/pale blue (greenish or violet)-blue dark blueHerve Nicolas Lazzarelli

1.3 Dispersion

0.020.02

0.007 1

1.4 Transparency

Transparent, Opaque, Transparent to nearly opaque

Transparent

1.5 Refractive Index

1.601.710-1.735

1 3.25

1.6 Optic Character

Not Available

Biaxial/+

1.7 Crystal System

Trigonal

Not Available

1.8 Birefringence

0.208-0.2200.012-0.033

0 0.296

1.9 Clarity

Transparent to nearly opaque

Transparent

Rhodochrosite and Kyanite Cyprine Optic Character

Rhodochrosite and Kyanite Cyprine optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Rhodochrosite and Kyanite Cyprine 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 Rhodochrosite and Kyanite Cyprine 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. Kyanite Cyprine has Biaxial/+ character.

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Rhodochrosite and Kyanite Cyprine Transparency

Similar to their colors, Rhodochrosite and Kyanite Cyprine 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, Rhodochrosite is Opaque, Transparent and Transparent to nearly opaque while Rhodochrosite is Opaque, Transparent and Transparent to nearly opaque in appearance.