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Andalusite
Andalusite

Goshenite
Goshenite



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Andalusite
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Goshenite

Andalusite and Goshenite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous
1.2 Pleochroism
strongly trichroic
Not Available
1.3 Dispersion
Albite Optical ..
0.02
Rank: 23 (Overall)
0.01
Rank: 26 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent
Transparent
1.5 Refractive Index
1.627-1.650
1.562-1.615
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Hexagonal
1.8 Birefringence
0.009-0.010
0.003-0.010
1.9 Clarity
Transparent
Transparent

Andalusite and Goshenite Optic Character

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

Andalusite and Goshenite Transparency

Similar to their colors, Andalusite and Goshenite 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, Andalusite is Translucent and Transparent while Andalusite is Translucent and Transparent in appearance.

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