Serpentine and Proustite Optical Properties

Serpentine

Proustite

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1 Optical Properties

1.1 Luster

Vitreous, Greasy, Silky

Adamantine

1.2 Pleochroism

AbsentWalter Schumann

Moderate; cochineal-red to blood-red

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Translucent

OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Rarely transparentMore from other references

1.5 Refractive Index

1.560-1.5712.792-3.087

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Trigonal

1.8 Birefringence

0.008-0.0140.295-0.296

0 0.296

1.9 Clarity

Translucent

OpaqueUlrich Henn and Claudio C. Milisenda

Serpentine and Proustite Optic Character

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

Similar to their colors, Serpentine and Proustite 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.