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Phosphosiderite and Milk Opal Optical Properties


Milk Opal and Phosphosiderite Optical Properties


Optical Properties

Luster
Vitreous   
Not Available   

Pleochroism
Pale rose-red carmine-red colorlessAnthony et al   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Translucent   

Refractive Index
1.692-1.739   
1.37-1.52   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Not Available   

Birefringence
0.240   
Not Available   

Clarity
Transparent   
Not Available   

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<< Physical Properties

Phosphosiderite and Milk Opal Optic Character

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

Similar to their colors, Phosphosiderite and Milk Opal 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.

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