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Amblygonite
Amblygonite

Phosgenite
Phosgenite



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Amblygonite
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Phosgenite

Amblygonite and Phosgenite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Pearly
weak to none
0.01
-
1.578-1.646
Biaxial/+
Triclinic
0.020-0.030
TransparentUlrich Henn and Claudio C. Milisenda
 
Adamantine
Weakly pleochroic with O reddish and E greenish in thick sections.
0.04
-
2.117-2.145
-
tetragonal
0.027
TransparentUlrich Henn and Claudio C. Milisenda

Amblygonite and Phosgenite Optic Character

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

Amblygonite and Phosgenite Transparency

Similar to their colors, Amblygonite and Phosgenite 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, Amblygonite is while Amblygonite is in appearance.