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Verdelite
Verdelite

Astrophyllite
Astrophyllite



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Verdelite
X
Astrophyllite

Verdelite and Astrophyllite Optical Properties

Optical Properties

Luster

-
Greasy, Pearly

Pleochroism

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

Dispersion

0.020.12
0.005 1
👆🏻

Transparency

Transparent, Translucent
Translucent

Refractive Index

1.614-1.6661.678-1.758
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Triclinic

Birefringence

0.014-0.0400.050
0 0.296
👆🏻

Clarity

Transparent
Translucent

Verdelite and Astrophyllite Optic Character

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

Verdelite and Astrophyllite Transparency

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