×

Tourmaline
Tourmaline

Dallasite
Dallasite



ADD
Compare
X
Tourmaline
X
Dallasite
1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
typically moderate to strong
Not Available
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent, Transparent to opaque
Not Available
1.5 Refractive Index
1.614-1.6661.540
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
0.014-0.0400.008-0.010
Achroite
0 0.296
1.9 Clarity
Transparent
Not Available