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Hexagonite
Hexagonite

Vivianite
Vivianite



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Hexagonite
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Vivianite

Hexagonite and Vivianite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly
1.2 Pleochroism
bluish–red
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael O’Donoghue
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.599-1.6371.560-1.640
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
0.019-0.0280.054-0.075
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Hexagonite and Vivianite Optic Character

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

Hexagonite and Vivianite Transparency

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