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Iolite
Iolite

dendritic agate
dendritic agate



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Iolite
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dendritic agate

Iolite and dendritic agate Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

-
-

Dispersion

0.020.01
0.005 1
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Transparency

Transparent, Translucent, Transparent to translucent
TranslucentWalter Schumann

Refractive Index

1.52-1.56-9999
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

-9999-9999
0 0.296
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Clarity

Transparent to translucent
TranslucentWalter Schumann

Iolite and dendritic agate Optic Character

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

Iolite and dendritic agate Transparency

Similar to their colors, Iolite and dendritic agate 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, Iolite is Transparent, Translucent and Transparent to translucent while Iolite is Transparent, Translucent and Transparent to translucent in appearance.