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Blue John
Blue John

Sardonyx
Sardonyx



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Blue John
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Sardonyx

Blue John and Sardonyx Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent
1.5 Refractive Index
1.432-1.4361.530-1.543
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 Available0.008-0.010
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Blue John and Sardonyx Optic Character

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

Blue John and Sardonyx Transparency

Similar to their colors, Blue John and Sardonyx 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, Blue John is Transparent while Blue John is Transparent in appearance.