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Opal Ethiopia and Proustite Optical Properties


Proustite and Opal Ethiopia Optical Properties


Optical Properties

Luster
Not Available   
Adamantine   

Pleochroism
Not Available   
Moderate; cochineal-red to blood-red   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Rarely transparentMore from other references   

Refractive Index
1.42-1.47   
2.792-3.087   

Optic Character
Not Available   
Not Available   

Crystal System
Amorphous   
Trigonal   

Birefringence
Not Available   
0.295-0.296   

Clarity
Color grading system   
OpaqueUlrich Henn and Claudio C. Milisenda   

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Opal Ethiopia and Proustite Optic Character

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

Similar to their colors, Opal Ethiopia and Proustite 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, Opal Ethiopia is Not Available while Opal Ethiopia is Not Available in appearance.

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