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Weloganite and Euclase Optical Properties


Euclase and Weloganite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Not Available   
Weak: colorless-(greenish) yellow   

Dispersion
Not Available   
0.02   
23

Transparency
Not Available   
Gemmological Tables (2004) More from other references   

Refractive Index
1.558   
1.650-1.677   

Optic Character
Not Available   
Not Available   

Crystal System
Triclinic   
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a   

Birefringence
0.082   
0.019-0.025   

Clarity
Not Available   
TransparentUlrich Henn and Claudio C. Milisenda   

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Weloganite and Euclase Optic Character

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

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Weloganite and Euclase Transparency

Similar to their colors, Weloganite 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, Weloganite is Not Available while Weloganite is Not Available in appearance.

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Yellow Gemstones


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