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Glaucophane
Glaucophane
☒

Danburite
Danburite
☒



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Glaucophane
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Pearly
Strong
0.02
-
1.606-1.637
-
monoclinic
-9999
-
 
Vitreous, Greasy
Weak: pale yellow yellow
0.02
-
1.627-1.639
Biaxial/+
Orthorhombic
0.006
TransparentUlrich Henn and Claudio C. Milisenda

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