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Wavellite and Hematite Optical Properties


Hematite and Wavellite Optical Properties


Optical Properties

Luster
Vitreous, Resinous, Pearly   
Not Available   

Pleochroism
Weak   
O = brownish red; E = yellowish red   

Dispersion
Not Available   
Not Available   

Transparency
Gems   
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references   

Refractive Index
1.518-1.561   
2.690-3.220   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Trigonal   

Birefringence
0.025   
0.280   

Clarity
Gems   
OpaqueHerve Nicolas Lazzarelli   

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Wavellite and Hematite Optic Character

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

Similar to their colors, Wavellite 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, Wavellite is Gems while Wavellite is Gems in appearance.

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