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Hureaulite
Hureaulite

Apache Tear
Apache Tear



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Hureaulite
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Apache Tear

Hureaulite and Apache Tear Optical Properties

Optical Properties

Luster

Vitreous, Greasy
-

Pleochroism

Colorless yellow to pale rose reddish yellow to reddish brown.Anthony et al
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Dispersion

0.020.01
0.005 1
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Transparency

Transparent
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Refractive Index

1.647-1.667-9999
1 3.25
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Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
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Birefringence

0.012-9999
0 0.296
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Clarity

Transparent
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Hureaulite and Apache Tear Optic Character

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

Hureaulite and Apache Tear Transparency

Similar to their colors, Hureaulite 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, Hureaulite is Transparent while Hureaulite is Transparent in appearance.