Sulphur and Dioptase Optical Properties

Sulphur

Dioptase

Add ⊕

1 Optical Properties

1.1 Luster

Not Available

Vitreous

1.2 Pleochroism

Not Available

Weak; dark emerald green

1.3 Dispersion

NA0.04

0.007 1

1.4 Transparency

TranslucentWalter Schumann, Gemstones of the world (2001)

TranslucentHerve Nicolas Lazzarelli

1.5 Refractive Index

1.958-2.2451.644-1.720

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Trigonal

1.8 Birefringence

0.2910.051-0.053

0 0.296

1.9 Clarity

TranslucentWalter Schumann

TranslucentHerve Nicolas Lazzarelli

Sulphur and Dioptase Optic Character

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

Compare Yellow Gemstones

Sulphur Vs Topazolite

Sulphur Vs Verdite

Sulphur Vs Tourmaline

Sulphur and Dioptase Transparency

Similar to their colors, Sulphur and Dioptase 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.