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Polyhalite
Polyhalite

Bloodstone
Bloodstone



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Polyhalite
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Bloodstone

Polyhalite and Bloodstone Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

-
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Opaque

Refractive Index

1.546-1.5481.54-1.55
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Trigonal

Birefringence

0.021-9999
0 0.296
👆🏻

Clarity

-
Opaque

Polyhalite and Bloodstone Optic Character

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

Polyhalite and Bloodstone Transparency

Similar to their colors, Polyhalite and Bloodstone 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, Polyhalite is while Polyhalite is in appearance.