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Hurlbutite
Hurlbutite

Zincite
Zincite



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Hurlbutite
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Zincite

Hurlbutite 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
Transparent
TransparentRobert C. Kammerling, The Journal of Gemmology (1995) More from other references
1.5 Refractive Index
1.595-1.6042.013-2.029
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
Hexagonal
1.8 Birefringence
0.0090.016
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentRobert C. Kammerling

Hurlbutite and Zincite Optic Character

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

Hurlbutite and Zincite Transparency

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