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Achroite and Hardystonite Optical Properties


Hardystonite and Achroite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Resinous, Greasy   

Pleochroism
Not Available   
Not Available   

Dispersion
0.02   
22
Not Available   

Transparency
Transparent, Translucent   
Handbook of mineralogy (2001)   

Refractive Index
1.614-1.666   
1.672   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
tetragonal   

Birefringence
0.014-0.040   
Not Available   

Clarity
Transparent   
Handbook of mineralogy (2001)   

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Achroite and Hardystonite Optic Character

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

Similar to their colors, Achroite and Hardystonite 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, Achroite is Translucent and Transparent while Achroite is Translucent and Transparent in appearance.

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