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Iddingsite and Fayalite Optical Properties


Fayalite and Iddingsite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Resinous   

Pleochroism
Not Available   
Faint   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
TransparentAnthony et al, Handbook of mineralogy (2001)   

Refractive Index
Not Available   
1.827-1.879   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Orthorhombic   

Birefringence
Not Available   
0.042-0.051   

Clarity
Not Available   
TransparentAnthony et al   

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Iddingsite and Fayalite Optic Character

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

Similar to their colors, Iddingsite and Fayalite 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, Iddingsite is Not Available while Iddingsite is Not Available in appearance.

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Brown Gemstones


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