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Povondraite
Povondraite

Nuummite
Nuummite



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Povondraite
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Nuummite

Povondraite and Nuummite Optical Properties

1 Optical Properties
1.1 Luster
Resinous
Not Available
1.2 Pleochroism
Strong: yellow-brown
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
Not Available1.635-1.663
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
Not Available0.0170-0.230
Achroite
0 0.296
1.9 Clarity
Translucent
Gemmological Tables (2004) More from other references

Povondraite and Nuummite Optic Character

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

Povondraite and Nuummite Transparency

Similar to their colors, Povondraite and Nuummite 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, Povondraite is Translucent while Povondraite is Translucent in appearance.