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Anhydrite
Anhydrite

Amblygonite
Amblygonite



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Anhydrite
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Amblygonite

Anhydrite and Amblygonite Optical Properties

1 Optical Properties
1.1 Luster
Pearly, Greasy
Vitreous, Pearly
1.2 Pleochroism
For violet varieties
weak to none
1.3 Dispersion
0.010.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.570-1.6141.578-1.646
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Orthorhombic
Triclinic
1.8 Birefringence
0.042-0.0440.020-0.030
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Anhydrite and Amblygonite Optic Character

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

Anhydrite and Amblygonite Transparency

Similar to their colors, Anhydrite and Amblygonite 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.