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Amazonite
Amazonite

Grandidierite
Grandidierite



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Amazonite and Grandidierite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly
1.2 Pleochroism
WeakMichael O’Donoghue
visible
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent, Translucent to opaque
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.522-1.530
1.578-1.639
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Orthorhombic
1.8 Birefringence
0.008-0.010
0.037-0.039
1.9 Clarity
Translucent
Gemmological Tables (2004) More from other references

Amazonite and Grandidierite Optic Character

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

Amazonite and Grandidierite Transparency

Similar to their colors, Amazonite and Grandidierite 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, Amazonite is Translucent and Translucent to opaque while Amazonite is Translucent and Translucent to opaque in appearance.

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