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Vivianite and Microcline Optical Properties


Microcline and Vivianite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Vitreous   

Pleochroism
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael O’Donoghue   
WeakMichael O’Donoghue   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Translucent   

Refractive Index
1.560-1.640   
1.514-1.539   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: C1   

Birefringence
0.054-0.075   
0.008-0.010   

Clarity
Transparent   
Translucent   

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Vivianite and Microcline Optic Character

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

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Vivianite and Microcline Transparency

Similar to their colors, Vivianite and Microcline 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.

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