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Clinochlore
Clinochlore

Vivianite
Vivianite



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Clinochlore
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Vivianite

Clinochlore and Vivianite Optical Properties

1 Optical Properties
1.1 Luster
Pearly, Greasy
Vitreous, Pearly
1.2 Pleochroism
Distinct: light yellow-green to light bluE
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael O’Donoghue
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.571-1.597
1.560-1.640
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
Not Available
1.8 Birefringence
Not Available
0.054-0.075
1.9 Clarity
Transparent
Transparent

Clinochlore and Vivianite Optic Character

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

Similar to their colors, Clinochlore and Vivianite 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.