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Hemimorphite
Hemimorphite

Polyhalite
Polyhalite



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Hemimorphite
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Polyhalite

Hemimorphite and Polyhalite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Adamantine, Silky
Vitreous, Resinous
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Not Available
1.5 Refractive Index
1.614-1.6361.546-1.548
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Triclinic
1.8 Birefringence
0.0220.021
Achroite
0 0.296
1.9 Clarity
Transparent
Not Available

Hemimorphite and Polyhalite Optic Character

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

Hemimorphite and Polyhalite Transparency

Similar to their colors, Hemimorphite and Polyhalite 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, Hemimorphite is Translucent and Transparent while Hemimorphite is Translucent and Transparent in appearance.