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Clinochlore
Clinochlore

Mottramite
Mottramite



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Clinochlore
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Mottramite

Clinochlore and Mottramite Optical Properties

Optical Properties

Luster

Pearly, Greasy
Greasy

Pleochroism

Distinct: light yellow-green to light bluE
Visible X=Y= canary yellow to greenish yellow

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.571-1.5972.170
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
Orthorhombic

Birefringence

-99990.150
0 0.296
👆🏻

Clarity

Transparent
-

Clinochlore and Mottramite Optic Character

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

Clinochlore and Mottramite Transparency

Similar to their colors, Clinochlore 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, Clinochlore is Transparent while Clinochlore is Transparent in appearance.