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Euclase
Euclase

Ammolite
Ammolite



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Euclase
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Ammolite

Euclase and Ammolite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Silky, Vitreous
1.2 Pleochroism
Weak: colorless-(greenish) yellow
None
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
Not Available
1.5 Refractive Index
1.650-1.677
1.520-1.670
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Trigonal
1.8 Birefringence
0.019-0.025
0.135-0.145
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Not Available

Euclase and Ammolite Optic Character

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

Similar to their colors, Euclase and Ammolite 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.

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