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Amblygonite
Amblygonite

Pumpellyite
Pumpellyite



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Amblygonite
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Pumpellyite

Amblygonite and Pumpellyite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Fibrous
1.2 Pleochroism
weak to none
Not Available
1.3 Dispersion
Albite Optical ..
0.01
Rank: 26 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
Gemmological Tables (2004)
1.5 Refractive Index
1.578-1.646
1.674-1.764
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Triclinic
monoclinic
1.8 Birefringence
0.020-0.030
0.014-0.016
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
OpaqueUlrich Henn and Claudio C. Milisenda

Amblygonite and Pumpellyite Optic Character

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

Amblygonite and Pumpellyite Transparency

Similar to their colors, Amblygonite and Pumpellyite 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 Gemmological Tables (2004) More from other references while Amblygonite is Gemmological Tables (2004) More from other references in appearance.