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Moonstone
Moonstone

Amblygonite
Amblygonite



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Moonstone
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Amblygonite

Moonstone and Amblygonite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Vitreous, Pearly
1.2 Pleochroism
AbsentWalter Schumann
weak to none
1.3 Dispersion
None0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Transparent to translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.518-1.5271.578-1.646
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
monoclinic
Triclinic
1.8 Birefringence
0.006-0.0070.020-0.030
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Moonstone and Amblygonite Optic Character

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

Moonstone and Amblygonite Transparency

Similar to their colors, Moonstone 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, Moonstone is Transparent and Transparent to translucent while Moonstone is Transparent and Transparent to translucent in appearance.