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Idocrase and Hematite Optical Properties


Hematite and Idocrase Optical Properties


Optical Properties

Luster
Not Available   
Not Available   

Pleochroism
Not Available   
O = brownish red; E = yellowish red   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references   

Refractive Index
1.67-1.76   
2.690-3.220   

Optic Character
Not Available   
Not Available   

Crystal System
tetragonal   
Trigonal   

Birefringence
Not Available   
0.280   

Clarity
Color grading system   
OpaqueHerve Nicolas Lazzarelli   

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<< Physical Properties

Idocrase and Hematite Optic Character

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

Similar to their colors, Idocrase 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, Idocrase is Not Available while Idocrase is Not Available in appearance.

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