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Helenite
Helenite

Antigorite
Antigorite



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Helenite
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Antigorite

Helenite and Antigorite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Waxy, Silky, Resinous, Greasy
1.2 Pleochroism
Not Available
pale greenish yellow.
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Translucent
1.5 Refractive Index
Not Available1.530-1.575
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Not Available
Translucent

Helenite and Antigorite Optic Character

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

Helenite and Antigorite Transparency

Similar to their colors, Helenite and Antigorite 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, Helenite is Not Available while Helenite is Not Available in appearance.