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Tigers Eye
Tigers Eye

Umbalite
Umbalite



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Tigers Eye
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Umbalite

Tigers Eye and Umbalite Optical Properties

1 Optical Properties
1.1 Luster
Silky
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
None0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
1.534-1.5401.730-1.820
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Gemstones of the world (2001) More from other references
TransparentGemdat.org

Tigers Eye and Umbalite Optic Character

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

Tigers Eye and Umbalite Transparency

Similar to their colors, Tigers Eye and Umbalite 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, Tigers Eye is Opaque while Tigers Eye is Opaque in appearance.