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Gedrite and Goethite Optical Properties


Goethite and Gedrite Optical Properties


Optical Properties

Luster
Vitreous  
Adamantine  

Pleochroism
Weak to moderate  
VisibleArthur Thomas  

Dispersion
0.02  
99+
0.05  

Transparency
Transparent  
-  

Refractive Index
1.625-1.718  
2.26-2.398  

Optic Character
-  
-  

Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma  
Orthorhombic  

Birefringence
-9999  
0.138  

Clarity
Transparent  
-  

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Gedrite and Goethite Optic Character

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

Similar to their colors, Gedrite and Goethite 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, Gedrite is Transparent while Gedrite is Transparent in appearance.

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