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Thomsonite
Thomsonite

Clinochlore
Clinochlore



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Thomsonite
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Clinochlore

Thomsonite and Clinochlore Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Pearly, Greasy
1.2 Pleochroism
NilArthur Thomas
Distinct: light yellow-green to light bluE
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
1.510-1.5501.571-1.597
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Orthorhombic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
1.8 Birefringence
0.015-0.020Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Thomsonite and Clinochlore Optic Character

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

Thomsonite and Clinochlore Transparency

Similar to their colors, Thomsonite and Clinochlore 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, Thomsonite is Translucent while Thomsonite is Translucent in appearance.