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Soapstone
Soapstone

Pumpellyite
Pumpellyite



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Soapstone
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Pumpellyite

Soapstone and Pumpellyite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.01
-
-9999
-
-
-9999
-
 
-
-
0.02
-
1.674-1.764
-
monoclinic
0.014-0.016
OpaqueUlrich Henn and Claudio C. Milisenda

Soapstone and Pumpellyite Optic Character

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

Soapstone and Pumpellyite Transparency

Similar to their colors, Soapstone 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, Soapstone is while Soapstone is in appearance.