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Chlorapatite
Chlorapatite

Mottramite
Mottramite



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Chlorapatite
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Mottramite

Chlorapatite and Mottramite Optical Properties

Optical Properties

Luster

-
Greasy

Pleochroism

Weak to moderate; in pale colors.
Visible X=Y= canary yellow to greenish yellow

Dispersion

0.030.04
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.665-1.6672.170
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.150
0 0.296
👆🏻

Clarity

Transparent
-

Chlorapatite and Mottramite Optic Character

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

Chlorapatite and Mottramite Transparency

Similar to their colors, Chlorapatite and Mottramite 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.