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Pumpellyite
Pumpellyite

Antigorite
Antigorite



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Pumpellyite
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Antigorite

Pumpellyite and Antigorite Optical Properties

1 Optical Properties
1.1 Luster
Fibrous
Waxy, Silky, Resinous, Greasy
1.2 Pleochroism
Not Available
pale greenish yellow.
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004)
Translucent
1.5 Refractive Index
1.674-1.7641.530-1.575
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
1.8 Birefringence
0.014-0.016Not Available
Achroite
0 0.296
1.9 Clarity
OpaqueUlrich Henn and Claudio C. Milisenda
Translucent

Pumpellyite and Antigorite Optic Character

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

Similar to their colors, Pumpellyite and Antigorite 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.