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Phosgenite and Heliodor Golden Beryl Optical Properties


Heliodor Golden Beryl and Phosgenite Optical Properties


Optical Properties

Luster
Adamantine   
Not Available   

Pleochroism
Weakly pleochroic with O reddish and E greenish in thick sections.   
Weak: golden-yellow   

Dispersion
Not Available   
0.01   
26

Transparency
Gemmological Tables (2004) More from other references   
Transparent, Translucent   

Refractive Index
2.117-2.145   
1.566-1.579   

Optic Character
Not Available   
Not Available   

Crystal System
tetragonal   
Not Available   

Birefringence
0.027   
0.005-0.009   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Transparent   

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Phosgenite and Heliodor Golden Beryl Optic Character

Phosgenite and Heliodor Golden Beryl optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Phosgenite and Heliodor Golden Beryl 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 Phosgenite and Heliodor Golden Beryl 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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Phosgenite and Heliodor Golden Beryl Transparency

Similar to their colors, Phosgenite and Heliodor Golden Beryl 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, Phosgenite is Gemmological Tables (2004) More from other references while Phosgenite is Gemmological Tables (2004) More from other references in appearance.

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