Home
Gemstones


Anhydrite and Datolite Optical Properties


Datolite and Anhydrite Optical Properties


Optical Properties

Luster
Pearly, Greasy   
Vitreous   

Pleochroism
For violet varieties   
NilArthur Thomas   

Dispersion
0.01   
27
0.02   
23

Transparency
Transparent   
Transparent   

Refractive Index
1.570-1.614   
1.621-1.675   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
monoclinic   

Birefringence
0.042-0.044   
0.044   

Clarity
Transparent   
Transparent   

Benefits >>
<< Physical Properties

Anhydrite and Datolite Optic Character

Anhydrite and Datolite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Anhydrite and Datolite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Anhydrite and Datolite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Compare Blue Gemstones

Anhydrite and Datolite Transparency

Similar to their colors, Anhydrite and Datolite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Anhydrite is Transparent while Anhydrite is Transparent in appearance.

Blue Gemstones

Blue Gemstones


Compare Blue Gemstones