Chlorapatite and Hibschite Optical Properties

Chlorapatite

Hibschite

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1 Optical Properties

1.1 Luster

Not Available

Vitreous

1.2 Pleochroism

Weak to moderate; in pale colors.Anthony et al

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

Semitransparent

1.5 Refractive Index

1.665-1.667Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Transparent

TranslucentAnthony et al

Chlorapatite and Hibschite Optic Character

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

Similar to their colors, Chlorapatite and Hibschite 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, Chlorapatite is Transparent while Chlorapatite is Transparent in appearance.