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Amblygonite
Amblygonite

Bowenite
Bowenite



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Amblygonite
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Bowenite

Amblygonite and Bowenite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Waxy, Silky, Resinous, Greasy
1.2 Pleochroism
weak to none
Not Available
1.3 Dispersion
Albite Optical ..
0.01
Rank: 26 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
1.5 Refractive Index
1.578-1.646
1.530-1.575
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Triclinic
Not Available
1.8 Birefringence
0.020-0.030
Not Available
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TranslucentHerve Nicolas Lazzarelli

Amblygonite and Bowenite Optic Character

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

Amblygonite and Bowenite Transparency

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

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