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Hurlbutite
Hurlbutite

Rossmanite
Rossmanite



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Hurlbutite
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Rossmanite

Hurlbutite and Rossmanite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
TransparentWebmineral.com, Mineralogy Database (2012)
1.5 Refractive Index
1.595-1.6041.624-1.645
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: P 21/a
Not Available
1.8 Birefringence
0.0090.021
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentWebmineral.com

Hurlbutite and Rossmanite Optic Character

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

Hurlbutite and Rossmanite Transparency

Similar to their colors, Hurlbutite and Rossmanite 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, Hurlbutite is Transparent while Hurlbutite is Transparent in appearance.