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Topaz
Topaz

Pyrope Almandine
Pyrope Almandine



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Pyrope Almandine

Topaz and Pyrope Almandine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Weak
AbsentWalter Schumann
1.3 Dispersion
0.010.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
1.606-1.6441.73-1.77
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.008-0.011Not Available
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentGemdat.org

Topaz and Pyrope Almandine Optic Character

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

Topaz and Pyrope Almandine Transparency

Similar to their colors, Topaz and Pyrope Almandine 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, Topaz is Transparent while Topaz is Transparent in appearance.