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Clinochlore and Hematite Optical Properties


Hematite and Clinochlore Optical Properties


Optical Properties

Luster
Pearly, Greasy   
Not Available   

Pleochroism
Distinct: light yellow-green to light bluE   
O = brownish red; E = yellowish red   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references   

Refractive Index
1.571-1.597   
2.690-3.220   

Optic Character
Biaxial/+   
Not Available   

Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m   
Trigonal   

Birefringence
Not Available   
0.280   

Clarity
Transparent   
OpaqueHerve Nicolas Lazzarelli   

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Clinochlore and Hematite Optic Character

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

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Clinochlore and Hematite Transparency

Similar to their colors, Clinochlore and Hematite 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, Clinochlore is Transparent while Clinochlore is Transparent in appearance.

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