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Amblygonite
Amblygonite

Labradorite
Labradorite



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Amblygonite
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Labradorite

Amblygonite and Labradorite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Pearly
1.2 Pleochroism
weak to none
From the Congo
1.3 Dispersion
Albite Optical ..
0.01
Rank: 26 (Overall)
0.01
Rank: 28 (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.578-1.646
1.554-1.573
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Triclinic
Triclinic
1.8 Birefringence
0.020-0.030
0.008-0.010
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Amblygonite and Labradorite Optic Character

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

Similar to their colors, Amblygonite and Labradorite 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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