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Phosphosiderite
Phosphosiderite

Lazurite
Lazurite



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Phosphosiderite
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Lazurite

Phosphosiderite and Lazurite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Pale rose-red carmine-red colorlessAnthony et al
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.692-1.7391.500
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Isometric
1.8 Birefringence
0.240Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Phosphosiderite and Lazurite Optic Character

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

Phosphosiderite and Lazurite Transparency

Similar to their colors, Phosphosiderite and Lazurite 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, Phosphosiderite is Transparent while Phosphosiderite is Transparent in appearance.