Colemanite and Heliodor Golden Beryl Optical Properties

Colemanite

Heliodor Golden Beryl

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

NilArthur Thomas

Weak: golden-yellow

1.3 Dispersion

NA0.01

0.007 1

1.4 Transparency

Transparent

Transparent, Translucent

1.5 Refractive Index

1.584-1.6151.566-1.579

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

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

Not Available

1.8 Birefringence

0.028-0.0300.005-0.009

0 0.296

1.9 Clarity

Transparent

Colemanite and Heliodor Golden Beryl Optic Character

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

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