Zinnwaldite and Apache Tear Optical Properties

Zinnwaldite

Apache Tear

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1 Optical Properties

1.1 Luster

Pearly, Vitreous

Not Available

1.2 Pleochroism

Distinct

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

1.5 Refractive Index

1.565-1.625Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Amorphous

1.8 Birefringence

0.040-0.050Not Available

0 0.296

1.9 Clarity

Not Available

Zinnwaldite and Apache Tear Optic Character

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

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Zinnwaldite and Apache Tear Transparency

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