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Polyhalite
Polyhalite

Clinochlore
Clinochlore



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Polyhalite
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Clinochlore

Polyhalite and Clinochlore Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Resinous
Pearly, Greasy
1.2 Pleochroism
Not Available
Distinct: light yellow-green to light bluE
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent
1.5 Refractive Index
1.546-1.5481.571-1.597
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Triclinic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
1.8 Birefringence
0.021Not Available
Achroite
0 0.296
1.9 Clarity
Not Available
Transparent

Polyhalite and Clinochlore Optic Character

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

Polyhalite and Clinochlore Transparency

Similar to their colors, Polyhalite and Clinochlore 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.