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Diaspore
Diaspore

Pumpellyite
Pumpellyite



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Diaspore
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Pumpellyite

Diaspore and Pumpellyite Optical Properties

1 Optical Properties
1.1 Luster
Pearly
Fibrous
1.2 Pleochroism
Strong
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004)
1.5 Refractive Index
1.702-1.7501.674-1.764
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
monoclinic
1.8 Birefringence
0.0480.014-0.016
Achroite
0 0.296
1.9 Clarity
Transparent
OpaqueUlrich Henn and Claudio C. Milisenda

Diaspore and Pumpellyite Optic Character

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

Diaspore and Pumpellyite Transparency

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