Sulphur and Chlorapatite Optical Properties

Sulphur

Chlorapatite

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

Not Available

Weak to moderate; in pale colors.Anthony et al

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TranslucentWalter Schumann, Gemstones of the world (2001)

Transparent

1.5 Refractive Index

1.958-2.2451.665-1.667

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

0.291Not Available

0 0.296

1.9 Clarity

TranslucentWalter Schumann

Transparent

Sulphur and Chlorapatite Optic Character

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

Similar to their colors, Sulphur 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, Sulphur is Gemstones of the world (2001) and TranslucentWalter Schumann while Sulphur is Gemstones of the world (2001) and TranslucentWalter Schumann in appearance.