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Anthophyllite
Anthophyllite

Jet
Jet



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Anthophyllite
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Jet

Anthophyllite and Jet Optical Properties

Jet
Jet
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1 Optical Properties
1.1 Luster
Vitreous, Pearly
Waxy
1.2 Pleochroism
When Fe-rich
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.603-1.6901.640-1.680
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
Amorphous
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Anthophyllite and Jet Optic Character

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

Similar to their colors, Anthophyllite and Jet 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.