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Anthophyllite
Anthophyllite

Indicolite Blue Tourmaline
Indicolite Blue Tourmaline



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Anthophyllite
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Indicolite Blue Tourmaline

Anthophyllite and Indicolite Blue Tourmaline Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Not Available
1.2 Pleochroism
When Fe-rich
Strong: dark blue light blueWalter Schumann
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent, Translucent
1.5 Refractive Index
1.603-1.6901.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Not Available
1.8 Birefringence
Not Available0.014-0.040
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Anthophyllite and Indicolite Blue Tourmaline Optic Character

Anthophyllite and Indicolite Blue Tourmaline optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Anthophyllite and Indicolite Blue Tourmaline 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 Anthophyllite and Indicolite Blue Tourmaline 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. Anthophyllite has Biaxial/+ character.

Anthophyllite and Indicolite Blue Tourmaline Transparency

Similar to their colors, Anthophyllite and Indicolite Blue Tourmaline 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, Anthophyllite is Transparent while Anthophyllite is Transparent in appearance.