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Ettringite and Manganaxinite Optical Properties


Manganaxinite and Ettringite Optical Properties


Optical Properties

Luster
Vitreous   
Not Available   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Translucent   
Transparent   

Refractive Index
1.470-1.491   
1.678-1.692   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Not Available   

Birefringence
0.021   
Not Available   

Clarity
Transparent   
Not Available   

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<< Physical Properties

Ettringite and Manganaxinite Optic Character

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

Similar to their colors, Ettringite and Manganaxinite 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, Ettringite is Translucent and Transparent while Ettringite is Translucent and Transparent in appearance.

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