Colemanite and Beryl Optical Properties

Colemanite

Beryl

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1 Optical Properties

1.1 Luster

Vitreous

Vitreous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous

1.2 Pleochroism

NilArthur Thomas

Weak to distinct

1.3 Dispersion

NA0.01

0.007 1

1.4 Transparency

Transparent

Transparent, Transparent to opaque

1.5 Refractive Index

1.584-1.6151.560-1.604

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

Hexagonal

1.8 Birefringence

0.028-0.0300.0040-0.0070

0 0.296

1.9 Clarity

Transparent

Colemanite and Beryl Optic Character

Colemanite and Beryl optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Colemanite and 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 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 Vs Cubic Zirconia

Colemanite Vs Diaspore

Colemanite Vs Datolite

Colemanite and Beryl Transparency

Similar to their colors, Colemanite and 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.