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Euclase
Euclase

Amazonite
Amazonite



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Euclase and Amazonite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Weak: colorless-(greenish) yellow
WeakMichael O’Donoghue
1.3 Dispersion
Albite Optical ..
0.02
Rank: 23 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
Translucent, Translucent to opaque
1.5 Refractive Index
1.650-1.677
1.522-1.530
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Triclinic
1.8 Birefringence
0.019-0.025
0.008-0.010
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Euclase and Amazonite Optic Character

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

Euclase and Amazonite Transparency

Similar to their colors, Euclase and Amazonite 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, Euclase is Gemmological Tables (2004) More from other references while Euclase is Gemmological Tables (2004) More from other references in appearance.