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Jet lignite
Jet lignite

Amblygonite
Amblygonite



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Jet lignite
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Amblygonite

Jet lignite and Amblygonite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Pearly
1.2 Pleochroism
Not Available
weak to none
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
Not Available1.578-1.646
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Not Available
Triclinic
1.8 Birefringence
Not Available0.020-0.030
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Jet lignite and Amblygonite Optic Character

Jet lignite and Amblygonite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Jet lignite and Amblygonite 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 lignite and Amblygonite 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. Amblygonite has Biaxial/+ character.

Jet lignite and Amblygonite Transparency

Similar to their colors, Jet lignite and Amblygonite 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 lignite is Not Available while Jet lignite is Not Available in appearance.