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Blue John
Blue John

Tigers Eye
Tigers Eye



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Blue John
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Tigers Eye

Blue John and Tigers Eye Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Silky
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Opaque
1.5 Refractive Index
1.432-1.4361.534-1.540
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Transparent
Gemstones of the world (2001) More from other references

Blue John and Tigers Eye Optic Character

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

Similar to their colors, Blue John and Tigers Eye 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.