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Hureaulite
Hureaulite

Nuummite
Nuummite



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Hureaulite
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Nuummite

Hureaulite and Nuummite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Not Available
1.2 Pleochroism
Colorless yellow to pale rose reddish yellow to reddish brown.Anthony et al
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.647-1.6671.635-1.663
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
0.0120.0170-0.230
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Hureaulite and Nuummite Optic Character

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

Hureaulite and Nuummite Transparency

Similar to their colors, Hureaulite 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, Hureaulite is Transparent while Hureaulite is Transparent in appearance.