Heliodor Golden Beryl and Proustite Optical Properties

Heliodor Golden Beryl

Proustite

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1 Optical Properties

1.1 Luster

Not Available

Adamantine

1.2 Pleochroism

Weak: golden-yellow

Moderate; cochineal-red to blood-red

1.3 Dispersion

0.01NA

0.007 1

1.4 Transparency

Transparent, Translucent

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

1.5 Refractive Index

1.566-1.5792.792-3.087

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Trigonal

1.8 Birefringence

0.005-0.0090.295-0.296

0 0.296

1.9 Clarity

Transparent

OpaqueUlrich Henn and Claudio C. Milisenda

Heliodor Golden Beryl and Proustite Optic Character

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

Similar to their colors, Heliodor Golden Beryl 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, Heliodor Golden Beryl is Translucent and Transparent while Heliodor Golden Beryl is Translucent and Transparent in appearance.