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Tigers Eye
Tigers Eye

Covellite
Covellite



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Tigers Eye
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Covellite

Tigers Eye and Covellite Optical Properties

1 Optical Properties
1.1 Luster
Silky
Resinous
1.2 Pleochroism
Not Available
Marked
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
1.5 Refractive Index
1.534-1.5401.45-2.62
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Hexagonal
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Gemstones of the world (2001) More from other references
OpaqueAnthony et al

Tigers Eye and Covellite Optic Character

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

Similar to their colors, Tigers Eye and Covellite 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.