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Anthophyllite
Anthophyllite

Pumpellyite
Pumpellyite



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Anthophyllite
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Pumpellyite

Anthophyllite and Pumpellyite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Fibrous
1.2 Pleochroism
When Fe-rich
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004)
1.5 Refractive Index
1.603-1.6901.674-1.764
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
monoclinic
1.8 Birefringence
Not Available0.014-0.016
Achroite
0 0.296
1.9 Clarity
Transparent
OpaqueUlrich Henn and Claudio C. Milisenda

Anthophyllite and Pumpellyite Optic Character

Anthophyllite and Pumpellyite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Anthophyllite 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 Anthophyllite 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. Anthophyllite has Biaxial/+ character.

Anthophyllite and Pumpellyite Transparency

Similar to their colors, Anthophyllite 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, Anthophyllite is Transparent while Anthophyllite is Transparent in appearance.