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Verdite
Verdite

Allanite
Allanite



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Verdite
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Allanite

Verdite and Allanite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Silky
Not Available
1.2 Pleochroism
Extreme
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Not Available
1.5 Refractive Index
1.5801
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
Not Available
1.8 Birefringence
Not Available0.013-0.036
Achroite
0 0.296
1.9 Clarity
Translucent
Not Available

Verdite and Allanite Optic Character

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

Verdite and Allanite Transparency

Similar to their colors, Verdite and Allanite 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, Verdite is Translucent while Verdite is Translucent in appearance.