Chlorapatite and Gahnospinel Optical Properties

Chlorapatite

Gahnospinel

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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

AbsentWalter Schumann

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

Gemmological Tables (2004)

1.5 Refractive Index

1.665-1.6671.735-1.790

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Isometric

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

Chlorapatite and Gahnospinel Optic Character

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

Similar to their colors, Chlorapatite and Gahnospinel 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.