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Apache Tear
Apache Tear

Astrophyllite
Astrophyllite



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Apache Tear
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Astrophyllite

Apache Tear and Astrophyllite Optical Properties

Optical Properties

Luster

-
Greasy, Pearly

Pleochroism

-
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow

Dispersion

0.010.12
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

-99991.678-1.758
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Triclinic

Birefringence

-99990.050
0 0.296
👆🏻

Clarity

-
Translucent

Apache Tear and Astrophyllite Optic Character

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

Apache Tear and Astrophyllite Transparency

Similar to their colors, Apache Tear and Astrophyllite 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, Apache Tear is while Apache Tear is in appearance.