Diopside and Proustite Optical Properties

Diopside

Proustite

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1 Optical Properties

1.1 Luster

Vitreous

Adamantine

1.2 Pleochroism

Not Available

Moderate; cochineal-red to blood-red

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Translucent, Not Available, Transparent . Star Diopside is opaque .

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

1.5 Refractive Index

1.664-1.7302.792-3.087

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Trigonal

1.8 Birefringence

0.024-0.0300.295-0.296

0 0.296

1.9 Clarity

Transparent

OpaqueUlrich Henn and Claudio C. Milisenda

Diopside and Proustite Optic Character

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

Similar to their colors, Diopside 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, Diopside is Not Available, Translucent, Transparent and Transparent . Star Diopside is opaque . while Diopside is Not Available, Translucent, Transparent and Transparent . Star Diopside is opaque . in appearance.