Chrysotile and Foitite Optical Properties

Chrysotile

Foitite

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1 Optical Properties

1.1 Luster

Silky

Vitreous

1.2 Pleochroism

Not Available

Strong: pale lavender dark blueAnthony et al

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

TranslucentAnthony et al, Translucent

1.5 Refractive Index

1.530-1.575Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Monoclinic : clinochrysotile (most common)

Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

1.8 Birefringence

0.001Not Available

0 0.296

1.9 Clarity

Not Available

TranslucentAnthony et al

Chrysotile and Foitite Optic Character

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

Similar to their colors, Chrysotile and Foitite 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, Chrysotile is Not Available while Chrysotile is Not Available in appearance.