×

Jet
Jet

Anthophyllite
Anthophyllite



ADD
Compare
X
Jet
X
Anthophyllite

Jet and Anthophyllite Optical Properties

Jet
Jet
Add ⊕
1 Optical Properties
1.1 Luster
Waxy
Vitreous, Pearly
1.2 Pleochroism
AbsentWalter Schumann
When Fe-rich
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
1.5 Refractive Index
1.640-1.6801.603-1.690
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Amorphous
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Jet and Anthophyllite Optic Character

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

Jet and Anthophyllite Transparency

Similar to their colors, Jet and Anthophyllite 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, Jet is Gemmological Tables (2004) More from other references while Jet is Gemmological Tables (2004) More from other references in appearance.