×

Andesine
Andesine

Allanite
Allanite



ADD
Compare
X
Andesine
X
Allanite

Andesine and Allanite Optical Properties

Add ⊕
1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
colorless.
Not Available
1.3 Dispersion
0.70NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent, Transparent to translucent
Not Available
1.5 Refractive Index
1.543-1.5641
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Triclinic
Not Available
1.8 Birefringence
0.007-0.0110.013-0.036
Achroite
0 0.296
1.9 Clarity
Transparent
Not Available

Andesine and Allanite Optic Character

Andesine and Allanite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Andesine and Allanite 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 Andesine and Allanite 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. Andesine has Biaxial/+ character.

Andesine and Allanite Transparency

Similar to their colors, Andesine and Allanite 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, Andesine is Transparent, Translucent and Transparent to translucent while Andesine is Transparent, Translucent and Transparent to translucent in appearance.