×

Vishnevite
Vishnevite

Pumpellyite
Pumpellyite



ADD
Compare
X
Vishnevite
X
Pumpellyite

Vishnevite and Pumpellyite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Fibrous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004)
1.5 Refractive Index
1.490-1.5071.674-1.764
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
monoclinic
1.8 Birefringence
0.002-0.0120.014-0.016
Achroite
0 0.296
1.9 Clarity
Not Available
OpaqueUlrich Henn and Claudio C. Milisenda

Vishnevite and Pumpellyite Optic Character

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

Vishnevite and Pumpellyite Transparency

Similar to their colors, Vishnevite 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, Vishnevite is Not Available while Vishnevite is Not Available in appearance.