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Antigorite
Antigorite

Pyrope Almandine
Pyrope Almandine



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Antigorite
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Pyrope Almandine

Antigorite and Pyrope Almandine Optical Properties

1 Optical Properties
1.1 Luster
Waxy, Silky, Resinous, Greasy
Not Available
1.2 Pleochroism
pale greenish yellow.
AbsentWalter Schumann
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
1.530-1.5751.73-1.77
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 AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentGemdat.org

Antigorite and Pyrope Almandine Optic Character

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

Similar to their colors, Antigorite and Pyrope Almandine 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.