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Hematite and Chrysoberyl Optical Properties


Chrysoberyl and Hematite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
O = brownish red; E = yellowish red   
X = red; Y = yellow-orange; Z = emerald-green   

Dispersion
Not Available   
0.02   
24

Transparency
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references   
Transparent, Translucent, Transparent to translucent   

Refractive Index
2.690-3.220   
1.746-1.763   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Trigonal   
Orthorhombic   

Birefringence
0.280   
0.007-0.013   

Clarity
OpaqueHerve Nicolas Lazzarelli   
Transparent   

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Hematite and Chrysoberyl Optic Character

Hematite and Chrysoberyl optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Hematite and Chrysoberyl 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 Hematite and Chrysoberyl 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. Chrysoberyl has Biaxial/+ character.

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Hematite and Chrysoberyl Transparency

Similar to their colors, Hematite and Chrysoberyl 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, Hematite is Blue Chart Gem Identification (2010) More from other references and OpaqueHerve Nicolas Lazzarelli while Hematite is Blue Chart Gem Identification (2010) More from other references and OpaqueHerve Nicolas Lazzarelli in appearance.

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