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Gahnospinel and Adamite Optical Properties


Adamite and Gahnospinel Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
AbsentWalter Schumann   
NilArthur Thomas   

Dispersion
Not Available   
Not Available   

Transparency
Gemmological Tables (2004)   
Transparent   

Refractive Index
1.735-1.790   
1.708-1.722   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Isometric   
Orthorhombic   

Birefringence
Not Available   
0.031-0.050   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Transparent   

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Gahnospinel and Adamite Optic Character

Gahnospinel and Adamite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Gahnospinel and Adamite 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 Gahnospinel and Adamite 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. Adamite has Biaxial/+ character.

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Gahnospinel and Adamite Transparency

Similar to their colors, Gahnospinel and Adamite 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, Gahnospinel is Gemmological Tables (2004) while Gahnospinel is Gemmological Tables (2004) in appearance.

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