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Phosphosiderite
Phosphosiderite

Labradorite
Labradorite



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Phosphosiderite
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Labradorite

Phosphosiderite and Labradorite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Pale rose-red carmine-red colorlessAnthony et al
0.04
Transparent
1.692-1.739
-
-
0.240
Transparent
 
Vitreous, Pearly
-
0.01
Transparent, Translucent, Transparent to translucent
1.554-1.573
-
Triclinic
0.008-0.010
Transparent

Phosphosiderite and Labradorite Optic Character

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

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