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Hurlbutite and Gyrolite Optical Properties


Gyrolite and Hurlbutite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Pearly   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Not Available   

Refractive Index
1.595-1.604   
1.535   

Optic Character
Not Available   
Not Available   

Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a   
Triclinic   

Birefringence
0.009   
0.0140   

Clarity
Transparent   
Not Available   

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Hurlbutite and Gyrolite Optic Character

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

Similar to their colors, Hurlbutite and Gyrolite 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, Hurlbutite is Transparent while Hurlbutite is Transparent in appearance.

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