×

Heliotrope
Heliotrope
☒

Titanite
Titanite
☒



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X
Heliotrope
X
Titanite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.01
-
1.53-1.54
-
Trigonal
0.004
-
 
Subadamantine, Resinous
Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange
0.05
-
1.885-1.990
-
monoclinic
0.105-0.135
-