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Tanzanite
Tanzanite

Fibrolite
Fibrolite



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Tanzanite
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Fibrolite

Tanzanite and Fibrolite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Present
DistinctArthur Thomas
1.3 Dispersion
0.030.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent, Transparent to translucent
Transparent
1.5 Refractive Index
1.685-1.7071.658-1.678
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.006-0.018Not Available
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Tanzanite and Fibrolite Optic Character

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

Tanzanite and Fibrolite Transparency

Similar to their colors, Tanzanite and Fibrolite 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, Tanzanite is Translucent, Transparent and Transparent to translucent while Tanzanite is Translucent, Transparent and Transparent to translucent in appearance.