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Riebeckite
Riebeckite

Unakite
Unakite



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Riebeckite
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Unakite

Riebeckite and Unakite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Silky
Not Available
1.2 Pleochroism
X = blue
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemstones of the world (2001)
1.5 Refractive Index
1.680-1.6981.525
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
monoclinic
1.8 Birefringence
0.005-0.008Not Available
Achroite
0 0.296
1.9 Clarity
Not Available
Gemstones of the world (2001)

Riebeckite and Unakite Optic Character

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

Riebeckite and Unakite Transparency

Similar to their colors, Riebeckite and Unakite 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, Riebeckite is Not Available while Riebeckite is Not Available in appearance.