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Anglesite and Apatite Optical Properties


Apatite and Anglesite Optical Properties


Optical Properties

Luster
Adamantine   
Vitreous   

Pleochroism
NilArthur Thomas   
Blue stones – strong   

Dispersion
0.04   
10
0.01   
27

Transparency
Transparent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.877-1.894   
1.628-1.651   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Hexagonal   

Birefringence
0.017   
0.002-0.008   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Anglesite and Apatite Optic Character

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

Similar to their colors, Anglesite and Apatite 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, Anglesite is Transparent while Anglesite is Transparent in appearance.

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