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Allanite and Clinochlore Optical Properties


Clinochlore and Allanite Optical Properties


Optical Properties

Luster
Not Available   
Pearly, Greasy   

Pleochroism
Not Available   
Distinct: light yellow-green to light bluE   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Transparent   

Refractive Index
1   
1.571-1.597   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Not Available   
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m   

Birefringence
0.013-0.036   
Not Available   

Clarity
Not Available   
Transparent   

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Allanite and Clinochlore Optic Character

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

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Allanite and Clinochlore Transparency

Similar to their colors, Allanite 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, Allanite is Not Available while Allanite is Not Available in appearance.

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