Andradite and Ferro-axinite Axinite-Fe Optical Properties

Andradite

Ferro-axinite Axinite-Fe

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1 Optical Properties

1.1 Luster

Adamantine, Resinous

Vitreous

1.2 Pleochroism

Not Available

Colorless

1.3 Dispersion

0.06NA

0.007 1

1.4 Transparency

Transparent

1.5 Refractive Index

1.88-1.941.674-1.693

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

cubic

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

1.8 Birefringence

0.057Not Available

0 0.296

1.9 Clarity

Transparent

Not Available

Andradite and Ferro-axinite Axinite-Fe Optic Character

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

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Andradite and Ferro-axinite Axinite-Fe Transparency

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