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Eilat stone
Eilat stone

Vivianite
Vivianite



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Eilat stone
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Vivianite

Eilat stone and Vivianite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Pearly
1.2 Pleochroism
Not Available
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
Not Available
Transparent
1.5 Refractive Index
Not Available1.560-1.640
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
Not Available0.054-0.075
Achroite
0 0.296
1.9 Clarity
Not Available
Transparent

Eilat stone and Vivianite Optic Character

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

Eilat stone and Vivianite Transparency

Similar to their colors, Eilat stone 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, Eilat stone is Not Available while Eilat stone is Not Available in appearance.