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Pyromorphite and Franklinite Optical Properties


Franklinite and Pyromorphite Optical Properties


Optical Properties

Luster
Resinous, Subadamantine   
Not Available   

Pleochroism
Weak   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Translucent   

Refractive Index
2.042-2.059   
Not Available   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m   

Birefringence
0.010   
Not Available   

Clarity
Transparent   
Translucent   

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Pyromorphite and Franklinite Optic Character

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

Similar to their colors, Pyromorphite and Franklinite 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, Pyromorphite is Transparent while Pyromorphite is Transparent in appearance.

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