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Gahnospinel
Gahnospinel

Zincite
Zincite



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Gahnospinel
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Zincite

Gahnospinel and Zincite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Subadamantine, Resinous
1.2 Pleochroism
AbsentWalter Schumann
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
1.735-1.7902.013-2.029
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
Hexagonal
1.8 Birefringence
Not Available0.016
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentRobert C. Kammerling

Gahnospinel and Zincite Optic Character

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

Gahnospinel and Zincite Transparency

Similar to their colors, Gahnospinel 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, Gahnospinel is Gemmological Tables (2004) while Gahnospinel is Gemmological Tables (2004) in appearance.