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Astrophyllite
Astrophyllite

Beudantite
Beudantite



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Astrophyllite
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Beudantite

Astrophyllite and Beudantite Optical Properties

Optical Properties

Luster

Greasy, Pearly
Vitreous, Resinous

Pleochroism

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

Dispersion

0.120.03
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.678-1.7581.957
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Trigonal

Birefringence

0.0500.014
0 0.296
👆🏻

Clarity

Translucent
-

Astrophyllite and Beudantite Optic Character

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

Astrophyllite and Beudantite Transparency

Similar to their colors, Astrophyllite and Beudantite 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, Astrophyllite is Translucent while Astrophyllite is Translucent in appearance.