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Astrophyllite
Astrophyllite

Chambersite
Chambersite



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Astrophyllite
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Chambersite

Optical Properties

Luster

Greasy, Pearly
Vitreous

Pleochroism

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

Dispersion

0.120.01
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.678-1.7581.735-1.745
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Orthorhombic

Birefringence

0.0500.012
0 0.296
👆🏻

Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda