Eosphorite and Fayalite Optical Properties

Eosphorite

Fayalite

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1 Optical Properties

1.1 Luster

Vitreous, Resinous

1.2 Pleochroism

Visible: X = yellow; Y = pink; Z = pale pink to colorless

Faint

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

TransparentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.639-1.6721.827-1.879

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

1.8 Birefringence

0.029-0.0320.042-0.051

0 0.296

1.9 Clarity

Transparent

TransparentAnthony et al

Eosphorite and Fayalite Optic Character

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

Similar to their colors, Eosphorite 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, Eosphorite is Transparent while Eosphorite is Transparent in appearance.