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Euclase and Hematite Optical Properties


Hematite and Euclase Optical Properties


Optical Properties

Luster
Vitreous  
-  

Pleochroism
Weak: colorless-(greenish) yellow  
O = brownish red; E = yellowish red  

Dispersion
0.02  
99+
0.05  
25

Transparency
-  
OpaqueHerve Nicolas Lazzarelli  

Refractive Index
1.650-1.677  
2.690-3.220  

Optic Character
-  
-  

Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a  
Trigonal  

Birefringence
0.019-0.025  
0.280  

Clarity
TransparentUlrich Henn and Claudio C. Milisenda  
OpaqueHerve Nicolas Lazzarelli  

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Euclase and Hematite Optic Character

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

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Euclase and Hematite Transparency

Similar to their colors, Euclase 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, Euclase is while Euclase is in appearance.

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