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Plumbogummite and Gahnospinel Optical Properties


Gahnospinel and Plumbogummite Optical Properties


Optical Properties

Luster
Resinous   
Vitreous   

Pleochroism
None   
AbsentWalter Schumann   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Gemmological Tables (2004)   

Refractive Index
1.653-1.688   
1.735-1.790   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Isometric   

Birefringence
Not Available   
Not Available   

Clarity
Not Available   
TransparentUlrich Henn and Claudio C. Milisenda   

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Plumbogummite and Gahnospinel Optic Character

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

Similar to their colors, Plumbogummite and Gahnospinel 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, Plumbogummite is Not Available while Plumbogummite is Not Available in appearance.

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