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Anorthoclase
Anorthoclase

Amblygonite
Amblygonite



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Anorthoclase
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Amblygonite

Anorthoclase and Amblygonite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Pearly
1.2 Pleochroism
WeakMichael O’Donoghue
weak to none
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.518-1.5341.578-1.646
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: C1
Triclinic
1.8 Birefringence
0.006-0.0080.020-0.030
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Anorthoclase and Amblygonite Optic Character

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

Anorthoclase and Amblygonite Transparency

Similar to their colors, Anorthoclase 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, Anorthoclase is Translucent while Anorthoclase is Translucent in appearance.