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Willemite
Willemite

Andesine
Andesine



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Willemite
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Andesine

Willemite and Andesine Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Resinous
-
0.17
Transparent, Translucent
1.687-1.723
-
Trigonal
0.028-0.030
Transparent
 
Vitreous
colorless.
0.70
Transparent, Translucent, Transparent to translucent
1.543-1.564
Biaxial/+
Triclinic
0.007-0.011
Transparent

Willemite and Andesine Optic Character

Willemite and Andesine optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Willemite Vs Andesine 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 Willemite and Andesine 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.

Willemite and Andesine Transparency

Similar to their colors, Willemite and Andesine 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, Willemite is while Willemite is in appearance.