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Dallasite
Dallasite

Antigorite
Antigorite



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Dallasite
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Antigorite

Dallasite 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
1.5401.530-1.575
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
0.008-0.010Not Available
Achroite
0 0.296
1.9 Clarity
Not Available
Translucent

Dallasite and Antigorite Optic Character

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

Dallasite and Antigorite Transparency

Similar to their colors, Dallasite 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, Dallasite is Not Available while Dallasite is Not Available in appearance.