Tourmaline and Ferro-axinite Axinite-Fe Optical Properties

Tourmaline

Ferro-axinite Axinite-Fe

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

typically moderate to strong

Colorless

1.3 Dispersion

Albite Optical ..

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0.02

Rank: 22 (Overall)▶

Not Available

Rank: N/A (Overall)▶

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Fluorite Optical Properties

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0.044 (Anglesite Opt..)

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1.4 Transparency

Transparent, Translucent, Transparent to opaque

Transparent

1.5 Refractive Index

1.614-1.666

1.674-1.693

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

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

1.8 Birefringence

0.014-0.040

Not Available

1.9 Clarity

Transparent

Not Available

Tourmaline and Ferro-axinite Axinite-Fe Optic Character

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

Compare Semi Precious Gemstones

Tourmaline Vs Amethyst

Tourmaline Vs Citrine

Tourmaline Vs Beryl

Tourmaline and Ferro-axinite Axinite-Fe Transparency

Similar to their colors, Tourmaline 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, Tourmaline is Translucent, Transparent and Transparent to opaque while Tourmaline is Translucent, Transparent and Transparent to opaque in appearance.

Semi Precious

Turquoise

Peridot

Lehsunia

Alexandrite

Amethyst

Beryl