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Beryllonite
Beryllonite

Idocrase
Idocrase



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Beryllonite
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Idocrase
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Adamantine, Pearly
-
0.01
-
1.552-1.562
-
monoclinic
0.009
TransparentUlrich Henn and Claudio C. Milisenda
 
-
-
0.02
-
1.67-1.76
-
tetragonal
-9999
-