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Hureaulite and Pearl Optical Properties


Pearl and Hureaulite Optical Properties


Optical Properties

Luster
Vitreous, Greasy   
Pearly   

Pleochroism
Colorless yellow to pale rose reddish yellow to reddish brown.Anthony et al   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
Transparent   
Translucent, Opaque   

Refractive Index
1.647-1.667   
1.52-1.66   

Optic Character
Not Available   
Not Available   

Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c   
Orthorhombic   

Birefringence
0.012   
0.156   

Clarity
Transparent   
Translucent   

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Hureaulite and Pearl Optic Character

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

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Hureaulite and Pearl Transparency

Similar to their colors, Hureaulite and Pearl 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.

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