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Fayalite
Fayalite

Eosphorite
Eosphorite



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Eosphorite

Fayalite and Eosphorite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Resinous
Vitreous, Resinous
1.2 Pleochroism
Faint
Visible: X = yellow; Y = pink; Z = pale pink to colorless
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
TransparentAnthony et al, Handbook of mineralogy (2001)
Transparent
1.5 Refractive Index
1.827-1.879
1.639-1.672
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.042-0.051
0.029-0.032
1.9 Clarity
TransparentAnthony et al
Transparent

Fayalite and Eosphorite Optic Character

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

Fayalite and Eosphorite Transparency

Similar to their colors, Fayalite and Eosphorite 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, Fayalite is Handbook of mineralogy (2001) and TransparentAnthony et al while Fayalite is Handbook of mineralogy (2001) and TransparentAnthony et al in appearance.