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Amazonite
Amazonite

Brookite
Brookite



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Amazonite and Brookite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Adamantine
1.2 Pleochroism
WeakMichael O’Donoghue
Very weak
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
2.583-2.741
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Orthorhombic
1.8 Birefringence
0.008-0.010
0.117
1.9 Clarity
Translucent
Gemmological Tables (2004) More from other references

Amazonite and Brookite Optic Character

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

Similar to their colors, Amazonite and Brookite 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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