Heliodor Golden Beryl and Bertrandite Optical Properties

Heliodor Golden Beryl

Bertrandite

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1 Optical Properties

1.1 Luster

Not Available

Vitreous

1.2 Pleochroism

Weak: golden-yellow

none.

1.3 Dispersion

0.01NA

0.007 1

1.4 Transparency

Transparent, Translucent

TransparentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.566-1.5791.583-1.614

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

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

1.8 Birefringence

0.005-0.009Not Available

0 0.296

1.9 Clarity

Transparent

TransparentAnthony et al

Heliodor Golden Beryl and Bertrandite Optic Character

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

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