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Garnet
Garnet

Tanzanite
Tanzanite



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Garnet
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Tanzanite

Garnet and Tanzanite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Adamantine, Vitreous, Adamantine
Vitreous
1.2 Pleochroism
None
Present
1.3 Dispersion
0.020.03
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Transparent to translucent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.730-1.8951.685-1.707
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
Not Available0.006-0.018
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Garnet and Tanzanite Optic Character

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

Garnet and Tanzanite Transparency

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