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Almandine
Almandine

Sugilite
Sugilite



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Almandine and Sugilite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Vitreous
Vitreous
1.2 Pleochroism
None
Weak
1.3 Dispersion
Albite Optical ..
0.03
Rank: 15 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
Translucent
1.5 Refractive Index
1.770-1.820
1.607-1.612
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
Hexagonal
1.8 Birefringence
Not Available
0.003
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Almandine and Sugilite Optic Character

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

Almandine and Sugilite Transparency

Similar to their colors, Almandine and Sugilite 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, Almandine is Gemmological Tables (2004) More from other references while Almandine is Gemmological Tables (2004) More from other references in appearance.

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