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Aventurine feldspar
Aventurine feldspar

Tanzanite
Tanzanite



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Aventurine feldspar
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Tanzanite

Aventurine feldspar and Tanzanite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
Present
1.3 Dispersion
NA0.03
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
Not Available1.685-1.707
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
Not Available0.006-0.018
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Aventurine feldspar and Tanzanite Optic Character

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

Aventurine feldspar and Tanzanite Transparency

Similar to their colors, Aventurine feldspar 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, Aventurine feldspar is Not Available while Aventurine feldspar is Not Available in appearance.