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Lawsonite and Orthoclase Optical Properties


Orthoclase and Lawsonite Optical Properties


Optical Properties

Luster
Vitreous, Greasy   
Vitreous, Pearly   

Pleochroism
Weak   
colorless.   

Dispersion
Not Available   
0.01   
28

Transparency
Not Available   
Gemmological Tables (2004) More from other references   

Refractive Index
1.672-1.676   
1.518-1.536   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
monoclinic   

Birefringence
0.019-0.021   
0.0050-0.0060   

Clarity
Not Available   
TransparentUlrich Henn and Claudio C. Milisenda   

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Lawsonite and Orthoclase Optic Character

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

Similar to their colors, Lawsonite and Orthoclase 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, Lawsonite is Not Available while Lawsonite is Not Available in appearance.

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