Pyroxmangite and Antigorite Optical Properties

Pyroxmangite

Antigorite

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1 Optical Properties

1.1 Luster

Vitreous

Waxy, Silky, Resinous, Greasy

1.2 Pleochroism

Not Available

pale greenish yellow.

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

Translucent

1.5 Refractive Index

1.735-1.7561.530-1.575

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Monoclinic Domatic H-M Symbol (m) Space Group: Cm

1.8 Birefringence

0.017-0.019Not Available

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Translucent

Pyroxmangite and Antigorite Optic Character

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

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Pyroxmangite and Antigorite Transparency

Similar to their colors, Pyroxmangite 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, Pyroxmangite is Gemmological Tables (2004) More from other references while Pyroxmangite is Gemmological Tables (2004) More from other references in appearance.