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Annabergite
Annabergite

Euclase
Euclase



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Annabergite
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Euclase

Annabergite and Euclase Optical Properties

1 Optical Properties
1.1 Luster
Subadamantine, Pearly
Vitreous
1.2 Pleochroism
Not Available
Weak: colorless-(greenish) yellow
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.02
Rank: 23 (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.622
1.650-1.677
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
1.8 Birefringence
0.065
0.019-0.025
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Annabergite and Euclase Optic Character

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

Annabergite and Euclase Transparency

Similar to their colors, Annabergite and Euclase 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, Annabergite is Not Available while Annabergite is Not Available in appearance.