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Langbeinite
Langbeinite

Hiddenite
Hiddenite



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Langbeinite
X
Hiddenite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
-
-
1.5329-1.5347
-
cubic
-9999
-
 
Vitreous
Distinct trichroism: yellow green green blue greenHerve Nicolas Lazzarelli
0.02
Transparent
1.657-1.681
-
monoclinic
0.014-0.016
TransparentUlrich Henn and Claudio C. Milisenda