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Antigorite
Antigorite

Danburite
Danburite



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Antigorite
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Danburite

Antigorite and Danburite Optical Properties

1 Optical Properties
1.1 Luster
Waxy, Silky, Resinous, Greasy
Vitreous, Greasy
1.2 Pleochroism
pale greenish yellow.
Weak: pale yellow yellow
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.530-1.5751.627-1.639
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
Orthorhombic
1.8 Birefringence
Not Available0.006
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Antigorite and Danburite Optic Character

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

Antigorite and Danburite Transparency

Similar to their colors, Antigorite 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, Antigorite is Translucent while Antigorite is Translucent in appearance.