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Brookite and Pyrargyrite Optical Properties


Pyrargyrite and Brookite Optical Properties


Optical Properties

Luster
Adamantine   
Adamantine   

Pleochroism
Very weak   
Distinct   

Dispersion
Not Available   
Not Available   

Transparency
Gemmological Tables (2004) More from other references   
Translucent   

Refractive Index
2.583-2.741   
2.881-3.084   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Trigonal   

Birefringence
0.117   
0.203   

Clarity
Gemmological Tables (2004) More from other references   
Translucent   

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Brookite and Pyrargyrite Optic Character

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

Similar to their colors, Brookite and Pyrargyrite 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, Brookite is Gemmological Tables (2004) More from other references while Brookite is Gemmological Tables (2004) More from other references in appearance.

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