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Austinite
Austinite

Amblygonite
Amblygonite



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Austinite
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Amblygonite

Austinite and Amblygonite Optical Properties

1 Optical Properties
1.1 Luster
Subadamantine, Silky, Fibrous
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
1.7591.578-1.646
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Orthorhombic
Triclinic
1.8 Birefringence
0.0240.020-0.030
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Austinite and Amblygonite Optic Character

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

Austinite and Amblygonite Transparency

Similar to their colors, Austinite 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, Austinite is Not Available while Austinite is Not Available in appearance.