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Pumpellyite
Pumpellyite

Fancy Diamond
Fancy Diamond



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Pumpellyite
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Fancy Diamond

Pumpellyite and Fancy Diamond Optical Properties

1 Optical Properties
1.1 Luster
Fibrous
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004)
Not Available
1.5 Refractive Index
1.674-1.7642.42
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
cubic
1.8 Birefringence
0.014-0.016Not Available
Achroite
0 0.296
1.9 Clarity
OpaqueUlrich Henn and Claudio C. Milisenda
Color grading system

Pumpellyite and Fancy Diamond Optic Character

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

Pumpellyite and Fancy Diamond Transparency

Similar to their colors, Pumpellyite and Fancy Diamond 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, Pumpellyite is Gemmological Tables (2004) while Pumpellyite is Gemmological Tables (2004) in appearance.