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Almandine
Almandine

Tugtupite
Tugtupite



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Almandine
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Tugtupite

Almandine and Tugtupite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Vitreous
Not Available
1.2 Pleochroism
None
ModerateArthur Thomas
1.3 Dispersion
0.03NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
OpaqueHerve Nicolas Lazzarelli
1.5 Refractive Index
1.770-1.8201.494-1.504
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
tetragonal
1.8 Birefringence
Not Available0.008
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
OpaqueHerve Nicolas Lazzarelli

Almandine and Tugtupite Optic Character

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

Similar to their colors, Almandine and Tugtupite 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.