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Almandine
Almandine

Cacoxenite
Cacoxenite



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Almandine
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Cacoxenite

Almandine and Cacoxenite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Vitreous
Silky
1.2 Pleochroism
None
visible: O = Pale yellow E = Canary yellow to yellow orange
1.3 Dispersion
0.03NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Not Available
1.5 Refractive Index
1.770-1.8201.575-1.585
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
Hexagonal
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Not Available

Almandine and Cacoxenite Optic Character

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

Similar to their colors, Almandine and Cacoxenite 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.