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Benitoite
Benitoite

Aventurine feldspar
Aventurine feldspar



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Benitoite
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Aventurine feldspar

Benitoite and Aventurine feldspar Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
O = colorless; E = purple
Not Available
1.3 Dispersion
Albite Optical ..
0.04
Rank: 11 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Not Available
1.5 Refractive Index
1.757-1.804
Not Available
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Not Available
1.8 Birefringence
0.047
Not Available
1.9 Clarity
Transparent
Not Available

Benitoite and Aventurine feldspar Optic Character

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

Benitoite and Aventurine feldspar Transparency

Similar to their colors, Benitoite and Aventurine feldspar 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, Benitoite is Transparent while Benitoite is Transparent in appearance.