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Anhydrite
Anhydrite

Hackmanite
Hackmanite



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Anhydrite
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Hackmanite

Anhydrite and Hackmanite Optical Properties

1 Optical Properties
1.1 Luster
Pearly, Greasy
Vitreous
1.2 Pleochroism
For violet varieties
Not Available
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004)
1.5 Refractive Index
1.570-1.6141.483-1.487
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.042-0.044Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Anhydrite and Hackmanite Optic Character

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

Anhydrite and Hackmanite Transparency

Similar to their colors, Anhydrite and Hackmanite 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, Anhydrite is Transparent while Anhydrite is Transparent in appearance.