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Pectolite and Danburite Optical Properties


Danburite and Pectolite Optical Properties


Optical Properties

Luster
Silky   
Vitreous, Greasy   

Pleochroism
NilArthur Thomas   
Weak: pale yellow yellow   

Dispersion
Not Available   
0.02   
22

Transparency
Transparent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.595-1.645   
1.627-1.639   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Triclinic   
Orthorhombic   

Birefringence
0.028-0.038   
0.006   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Pectolite and Danburite Optic Character

Pectolite and Danburite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Pectolite and Danburite 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 Pectolite and Danburite 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. Danburite has Biaxial/+ character.

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Pectolite and Danburite Transparency

Similar to their colors, Pectolite and Danburite 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, Pectolite is Transparent while Pectolite is Transparent in appearance.

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