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Ammolite and Goethite Optical Properties


Goethite and Ammolite Optical Properties


Optical Properties

Luster
Silky, Vitreous   
Adamantine   

Pleochroism
None   
VisibleArthur Thomas   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Gemstones (2009)   

Refractive Index
1.520-1.670   
2.26-2.398   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Orthorhombic   

Birefringence
0.135-0.145   
0.138   

Clarity
Not Available   
Gemstones (2009)   

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<< Physical Properties

Ammolite and Goethite Optic Character

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

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

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