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Sulphur and Hematite Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Not Available
1.2 Pleochroism
Not Available
O = brownish red; E = yellowish red
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
TranslucentWalter Schumann, Gemstones of the world (2001)
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
1.5 Refractive Index
1.958-2.245
2.690-3.220
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
0.291
0.280
1.9 Clarity
TranslucentWalter Schumann
OpaqueHerve Nicolas Lazzarelli

Sulphur and Hematite Optic Character

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

Sulphur and Hematite Transparency

Similar to their colors, Sulphur and Hematite 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.