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Antigorite
Antigorite

Cassiterite
Cassiterite



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Antigorite
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Cassiterite

Antigorite and Cassiterite Optical Properties

1 Optical Properties
1.1 Luster
Waxy, Silky, Resinous, Greasy
Adamantine, Greasy
1.2 Pleochroism
pale greenish yellow.
Pleochroic haloes have been observed. Dichroic in yellow
1.3 Dispersion
NA0.07
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent, Translucent
1.5 Refractive Index
1.530-1.5751.990-2.105
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
tetragonal
1.8 Birefringence
Not Available0.096-0.098
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Antigorite and Cassiterite Optic Character

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

Similar to their colors, Antigorite and Cassiterite 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.