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Pollucite
Pollucite

Nuummite
Nuummite



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Pollucite
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Nuummite

Pollucite and Nuummite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.517-1.5251.635-1.663
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
Not Available
1.8 Birefringence
Not Available0.0170-0.230
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Pollucite and Nuummite Optic Character

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

Pollucite and Nuummite Transparency

Similar to their colors, Pollucite 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, Pollucite is Translucent and Transparent while Pollucite is Translucent and Transparent in appearance.