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Gaspeite
Gaspeite
☒

Beryllonite
Beryllonite
☒



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Gaspeite
X
Beryllonite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.05
-
1.830
-
Trigonal
0.220
-
 
Vitreous, Adamantine, Pearly
-
0.01
-
1.552-1.562
-
monoclinic
0.009
TransparentUlrich Henn and Claudio C. Milisenda