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Coral
Coral
☒

Oligoclase
Oligoclase
☒



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Coral
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Oligoclase
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.03
Translucent
1.486-1.658
-
Trigonal
0.160-0.172
Translucent
 
Vitreous
-
0.01
-
1.538-1.550
-
-
0.010
TransparentUlrich Henn and Claudio C. Milisenda