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Schorl
Schorl

Hackmanite
Hackmanite



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Schorl
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Hackmanite

Schorl and Hackmanite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Very strong: yellow-brown pale yellow
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004)
1.5 Refractive Index
1.635-1.6721.483-1.487
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
0.025Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Schorl and Hackmanite Optic Character

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

Schorl and Hackmanite Transparency

Similar to their colors, Schorl 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, Schorl is Translucent and Transparent while Schorl is Translucent and Transparent in appearance.