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Antigorite
Antigorite

Nuummite
Nuummite



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Antigorite
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Nuummite

Antigorite and Nuummite Optical Properties

1 Optical Properties
1.1 Luster
Waxy, Silky, Resinous, Greasy
Not Available
1.2 Pleochroism
pale greenish yellow.
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.530-1.5751.635-1.663
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
Not Available
1.8 Birefringence
Not Available0.0170-0.230
Achroite
0 0.296
1.9 Clarity
Translucent
Gemmological Tables (2004) More from other references

Antigorite and Nuummite Optic Character

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

Antigorite and Nuummite Transparency

Similar to their colors, Antigorite and Nuummite 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.