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Unakite
Unakite

Almandine
Almandine



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Unakite
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Almandine

Unakite and Almandine Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Greasy, Vitreous
1.2 Pleochroism
Not Available
None
1.3 Dispersion
NA0.03
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemstones of the world (2001)
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.5251.770-1.820
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
cubic
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Gemstones of the world (2001)
TransparentUlrich Henn and Claudio C. Milisenda

Unakite and Almandine Optic Character

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

Unakite and Almandine Transparency

Similar to their colors, Unakite and 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, Unakite is Gemstones of the world (2001) while Unakite is Gemstones of the world (2001) in appearance.