×

Gaylussite
Gaylussite
☒

Dravite
Dravite
☒



ADD ⊕
Compare
X
Gaylussite
X
Dravite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
-
0.03
-
1.444
-
monoclinic
0.079
-
 
Vitreous
Very strong: pale yellow colorless
0.02
Transparent
1.614-1.666
-
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
0.014-0.032
Transparent