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Hurlbutite
Hurlbutite

Anhydrite
Anhydrite



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Hurlbutite
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Anhydrite

Hurlbutite and Anhydrite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Pearly, Greasy
1.2 Pleochroism
Not Available
For violet varieties
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.595-1.6041.570-1.614
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
Orthorhombic
1.8 Birefringence
0.0090.042-0.044
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Hurlbutite and Anhydrite Optic Character

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

Similar to their colors, Hurlbutite and Anhydrite 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.