Sulphur and Steatite Optical Properties

Sulphur

Steatite

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TranslucentWalter Schumann, Gemstones of the world (2001)

Gemmological Tables (2004)

1.5 Refractive Index

1.958-2.2451.539-1.596

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

0.2910.046-0.050

0 0.296

1.9 Clarity

TranslucentWalter Schumann

OpaqueUlrich Henn and Claudio C. Milisenda

Sulphur and Steatite Optic Character

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

Similar to their colors, Sulphur and Steatite 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.