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Linarite and Oligoclase Optical Properties


Oligoclase and Linarite Optical Properties


Optical Properties

Luster
Sub-Adamantine, Vitreous   
Vitreous   

Pleochroism
X = pale blue; Y = blue; Z = Prussian blue   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Gemmological Tables (2004)   

Refractive Index
1.809-1.859   
1.538-1.550   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Not Available   

Birefringence
0.050   
0.010   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Linarite and Oligoclase Optic Character

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

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Linarite and Oligoclase Transparency

Similar to their colors, Linarite and Oligoclase 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, Linarite is Transparent while Linarite is Transparent in appearance.

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