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Bloodstone Heliotrope and Holmquistite Optical Properties


Holmquistite and Bloodstone Heliotrope Optical Properties


Optical Properties

Luster
Waxy   
Vitreous   

Pleochroism
Not Available   
Strong in shades of violet when dark-colored.Anthony et al   

Dispersion
Not Available   
Not Available   

Transparency
Translucent   
Transparent   

Refractive Index
1.530-1.543   
1.622-1.666   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma   

Birefringence
0.003-0.009   
Not Available   

Clarity
Translucent   
Transparent   

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Bloodstone Heliotrope and Holmquistite Optic Character

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

Similar to their colors, Bloodstone Heliotrope and Holmquistite 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, Bloodstone Heliotrope is Translucent while Bloodstone Heliotrope is Translucent in appearance.

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