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Zincite
Zincite

Labradorite
Labradorite



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Zincite
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Labradorite

Zincite and Labradorite Optical Properties

1 Optical Properties
1.1 Luster
Subadamantine, Resinous
Vitreous, Pearly
1.2 Pleochroism
Very weak
From the Congo
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentRobert C. Kammerling, The Journal of Gemmology (1995) More from other references
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
2.013-2.0291.554-1.573
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Triclinic
1.8 Birefringence
0.0160.008-0.010
Achroite
0 0.296
1.9 Clarity
TransparentRobert C. Kammerling
Transparent

Zincite and Labradorite Optic Character

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

Zincite and Labradorite Transparency

Similar to their colors, Zincite and Labradorite 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, Zincite is The Journal of Gemmology (1995) More from other references and TransparentRobert C. Kammerling while Zincite is The Journal of Gemmology (1995) More from other references and TransparentRobert C. Kammerling in appearance.