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Nephrite
Nephrite

Hureaulite
Hureaulite



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Nephrite
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Hureaulite

Nephrite and Hureaulite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Vitreous, Greasy
1.2 Pleochroism
None
Colorless yellow to pale rose reddish yellow to reddish brown.Anthony et al
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
1.600-1.6271.647-1.667
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
1.8 Birefringence
0.0270.012
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Nephrite and Hureaulite Optic Character

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

Nephrite and Hureaulite Transparency

Similar to their colors, Nephrite and Hureaulite 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, Nephrite is Translucent while Nephrite is Translucent in appearance.