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Eosphorite and Pumpellyite Optical Properties


Pumpellyite and Eosphorite Optical Properties


Optical Properties

Luster
Vitreous, Resinous   
Fibrous   

Pleochroism
Visible: X = yellow; Y = pink; Z = pale pink to colorless   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Gemmological Tables (2004)   

Refractive Index
1.639-1.672   
1.674-1.764   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
monoclinic   

Birefringence
0.029-0.032   
0.014-0.016   

Clarity
Transparent   
OpaqueUlrich Henn and Claudio C. Milisenda   

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Eosphorite and Pumpellyite Optic Character

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

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Eosphorite and Pumpellyite Transparency

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

Yellow Gemstones

Yellow Gemstones


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