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Almandine
Almandine

Pyrope
Pyrope



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Almandine
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Pyrope

Almandine and Pyrope Optical Properties

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1 Optical Properties
1.1 Luster
Greasy, Vitreous
Greasy, Vitreous
1.2 Pleochroism
None
None
1.3 Dispersion
0.030.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.770-1.8201.720-1.756
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
cubic
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda

Almandine and Pyrope Optic Character

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

Similar to their colors, Almandine and Pyrope 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.