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Hematite and Ammolite Optical Properties


Ammolite and Hematite Optical Properties


Optical Properties

Luster
-  
Silky, Vitreous  

Pleochroism
O = brownish red; E = yellowish red  
None  

Dispersion
0.05  
25
0.01  
99+

Transparency
OpaqueHerve Nicolas Lazzarelli  
-  

Refractive Index
2.690-3.220  
1.520-1.670  

Optic Character
-  
-  

Crystal System
Trigonal  
Trigonal  

Birefringence
0.280  
0.135-0.145  

Clarity
OpaqueHerve Nicolas Lazzarelli  
-  

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Hematite and Ammolite Optic Character

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

Similar to their colors, Hematite and Ammolite 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 OpaqueHerve Nicolas Lazzarelli while Hematite is OpaqueHerve Nicolas Lazzarelli in appearance.

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