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dendritic agate and Vivianite Optical Properties


Vivianite and dendritic agate Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Pearly   

Pleochroism
Not Available   
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael O’Donoghue   

Dispersion
Not Available   
Not Available   

Transparency
TranslucentWalter Schumann, Gemstones of the world (2001)   
Transparent   

Refractive Index
Not Available   
1.560-1.640   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Not Available   

Birefringence
Not Available   
0.054-0.075   

Clarity
TranslucentWalter Schumann   
Transparent   

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dendritic agate and Vivianite Optic Character

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

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dendritic agate and Vivianite Transparency

Similar to their colors, dendritic agate 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, dendritic agate is Gemstones of the world (2001) and TranslucentWalter Schumann while dendritic agate is Gemstones of the world (2001) and TranslucentWalter Schumann in appearance.

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