Eosphorite and Franklinite Optical Properties

Eosphorite

Franklinite

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1 Optical Properties

1.1 Luster

Vitreous, Resinous

Not Available

1.2 Pleochroism

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

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

Translucent

1.5 Refractive Index

1.639-1.672Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m

1.8 Birefringence

0.029-0.032Not Available

0 0.296

1.9 Clarity

Transparent

Translucent

Eosphorite and Franklinite Optic Character

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

Similar to their colors, Eosphorite and Franklinite 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.