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Achroite
Achroite

Pumpellyite
Pumpellyite



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Achroite
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Pumpellyite

Achroite and Pumpellyite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Fibrous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004)
1.5 Refractive Index
1.614-1.6661.674-1.764
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
0.014-0.0400.014-0.016
Ammolite
0 0.296
1.9 Clarity
Transparent
OpaqueUlrich Henn and Claudio C. Milisenda

Achroite and Pumpellyite Optic Character

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

Achroite and Pumpellyite Transparency

Similar to their colors, Achroite 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, Achroite is Translucent and Transparent while Achroite is Translucent and Transparent in appearance.