Chlorapatite and Rubellite Optical Properties

Chlorapatite

Rubellite

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

Weak to moderate; in pale colors.Anthony et al

Strong: dark red pinkish-redHerve Nicolas Lazzarelli

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

Transparent

Transparent, Translucent

1.5 Refractive Index

1.665-1.6671.614-1.666

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

Not Available0.014-0.040

0 0.296

1.9 Clarity

Transparent

Chlorapatite and Rubellite Optic Character

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

Similar to their colors, Chlorapatite and Rubellite 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, Chlorapatite is Transparent while Chlorapatite is Transparent in appearance.