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Hackmanite
Hackmanite

Zincite
Zincite



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Hackmanite
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Zincite

Hackmanite and Zincite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Subadamantine, Resinous
1.2 Pleochroism
Not Available
Very weak
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004)
TransparentRobert C. Kammerling, The Journal of Gemmology (1995) More from other references
1.5 Refractive Index
1.483-1.4872.013-2.029
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Hexagonal
1.8 Birefringence
Not Available0.016
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentRobert C. Kammerling

Hackmanite and Zincite Optic Character

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

Hackmanite and Zincite Transparency

Similar to their colors, Hackmanite and Zincite 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, Hackmanite is Gemmological Tables (2004) while Hackmanite is Gemmological Tables (2004) in appearance.