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Vivianite
Vivianite

Hawks Eye
Hawks Eye



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Vivianite
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Hawks Eye

Vivianite and Hawks Eye Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Not Available
1.2 Pleochroism
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael O’Donoghue
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Not Available
1.5 Refractive Index
1.560-1.640Not Available
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
0.054-0.075Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Not Available

Vivianite and Hawks Eye Optic Character

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

Vivianite and Hawks Eye Transparency

Similar to their colors, Vivianite and Hawks Eye 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, Vivianite is Transparent while Vivianite is Transparent in appearance.