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Polyhalite
Polyhalite

Adamite
Adamite



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Polyhalite
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Adamite

Polyhalite and Adamite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Resinous
Vitreous
1.2 Pleochroism
Not Available
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent
1.5 Refractive Index
1.546-1.5481.708-1.722
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Triclinic
Orthorhombic
1.8 Birefringence
0.0210.031-0.050
Achroite
0 0.296
1.9 Clarity
Not Available
Transparent

Polyhalite and Adamite Optic Character

Polyhalite and Adamite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Polyhalite and Adamite 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 Adamite 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. Adamite has Biaxial/+ character.

Polyhalite and Adamite Transparency

Similar to their colors, Polyhalite and Adamite 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 Not Available while Polyhalite is Not Available in appearance.