Serpentine and Colemanite Optical Properties

Serpentine

Colemanite

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1 Optical Properties

1.1 Luster

Vitreous, Greasy, Silky

Vitreous

1.2 Pleochroism

AbsentWalter Schumann

NilArthur Thomas

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Translucent

Transparent

1.5 Refractive Index

1.560-1.5711.584-1.615

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

1.8 Birefringence

0.008-0.0140.028-0.030

0 0.296

1.9 Clarity

Translucent

Transparent

Serpentine and Colemanite Optic Character

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

Similar to their colors, Serpentine and Colemanite 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, Serpentine is Translucent while Serpentine is Translucent in appearance.