Liddicoatite and Antigorite Optical Properties

Liddicoatite

Antigorite

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1 Optical Properties

1.1 Luster

Vitreous

Waxy, Silky, Resinous, Greasy

1.2 Pleochroism

Strong: dark brown light brownAnthony et al

pale greenish yellow.

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

Translucent

1.5 Refractive Index

Not Available1.530-1.575

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

Not AvailableNot Available

0 0.296

1.9 Clarity

Transparent

Translucent

Liddicoatite and Antigorite Optic Character

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

Similar to their colors, Liddicoatite 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, Liddicoatite is Transparent while Liddicoatite is Transparent in appearance.