Chrysotile and Bertrandite Optical Properties

Chrysotile

Bertrandite

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1 Optical Properties

1.1 Luster

Silky

Vitreous

1.2 Pleochroism

Not Available

none.

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

TransparentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.530-1.5751.583-1.614

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Monoclinic : clinochrysotile (most common)

Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21

1.8 Birefringence

0.001Not Available

0 0.296

1.9 Clarity

Not Available

TransparentAnthony et al

Chrysotile and Bertrandite Optic Character

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

Similar to their colors, Chrysotile and Bertrandite 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.