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Agate Opal
Agate Opal

Vivianite
Vivianite



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Agate Opal
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Vivianite

Agate Opal and Vivianite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Pearly
1.2 Pleochroism
AbsentWalter Schumann
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael O’Donoghue
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
1.37-1.521.560-1.640
Amber
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
Translucent
Transparent

Agate Opal and Vivianite Optic Character

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

Agate Opal and Vivianite Transparency

Similar to their colors, Agate Opal 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, Agate Opal is Translucent while Agate Opal is Translucent in appearance.