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Melanite
Melanite

Fayalite
Fayalite



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Melanite
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Fayalite

Melanite and Fayalite Optical Properties

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1 Optical Properties
1.1 Luster
Subadamantine, Vitreous
Vitreous, Resinous
1.2 Pleochroism
Not Available
Faint
1.3 Dispersion
0.06NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
TransparentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.855-1.8951.827-1.879
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
Not Available0.042-0.051
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentAnthony et al

Melanite and Fayalite Optic Character

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

Melanite and Fayalite Transparency

Similar to their colors, Melanite 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, Melanite is Translucent while Melanite is Translucent in appearance.