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Pectolite
Pectolite

Danburite
Danburite



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Pectolite
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Danburite

Pectolite and Danburite Optical Properties

1 Optical Properties
1.1 Luster
Silky
Vitreous, Greasy
1.2 Pleochroism
NilArthur Thomas
Weak: pale yellow yellow
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.595-1.6451.627-1.639
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Triclinic
Orthorhombic
1.8 Birefringence
0.028-0.0380.006
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

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.

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.