Colemanite and Chlorapatite Optical Properties

Colemanite

Chlorapatite

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

NilArthur Thomas

Weak to moderate; in pale colors.Anthony et al

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

1.5 Refractive Index

1.584-1.6151.665-1.667

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

0.028-0.030Not Available

0 0.296

1.9 Clarity

Transparent

Colemanite and Chlorapatite Optic Character

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

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Colemanite and Chlorapatite Transparency

Similar to their colors, Colemanite and Chlorapatite 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.