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Actinolite and Nickeline Optical Properties


Nickeline and Actinolite Optical Properties


Optical Properties

Luster
Vitreous   
Not Available   

Pleochroism
moderate   
Strong (reflected light)   

Dispersion
Not Available   
Not Available   

Transparency
TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references   
Not Available   

Refractive Index
1.613-1.628   
Not Available   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Hexagonal   

Birefringence
0.0250-0.0270   
Not Available   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Not Available   

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Actinolite and Nickeline Optic Character

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

Similar to their colors, Actinolite and Nickeline 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, Actinolite is Gemmological Tables (2004) More from other references and TransparentUlrich Henn and Claudio C. Milisenda while Actinolite is Gemmological Tables (2004) More from other references and TransparentUlrich Henn and Claudio C. Milisenda in appearance.

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Green Gemstones


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