Erythrite and Ferro-axinite Axinite-Fe Optical Properties

Erythrite

Ferro-axinite Axinite-Fe

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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

Subadamantine, Pearly

Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red

0.03

1.626-1.629

monoclinic

-9999

Vitreous

Colorless

0.02

Transparent

1.674-1.693

Triclinic Pinacoidal H-M Symbol ( 1) Space Group: P1

-9999

Erythrite and Ferro-axinite Axinite-Fe Optic Character

Erythrite and Ferro-axinite Axinite-Fe optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Erythrite Vs Ferro-axinite Axinite-Fe 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 Erythrite and Ferro-axinite Axinite-Fe 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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Erythrite and Ferro-axinite Axinite-Fe Transparency

Similar to their colors, Erythrite and Ferro-axinite Axinite-Fe 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, Erythrite is while Erythrite is in appearance.