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Heliotrope
Heliotrope

Zinnwaldite
Zinnwaldite



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Heliotrope
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Zinnwaldite

Heliotrope and Zinnwaldite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Pearly, Vitreous
1.2 Pleochroism
Not Available
Distinct
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
Not Available
1.5 Refractive Index
1.53-1.54
1.565-1.625
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
monoclinic
1.8 Birefringence
0.004
0.040-0.050
1.9 Clarity
Not Available
Not Available

Heliotrope and Zinnwaldite Optic Character

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

Heliotrope and Zinnwaldite Transparency

Similar to their colors, Heliotrope and Zinnwaldite 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, Heliotrope is Not Available while Heliotrope is Not Available in appearance.