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Phosphosiderite
Phosphosiderite

Amblygonite
Amblygonite



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Phosphosiderite
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Amblygonite

Phosphosiderite and Amblygonite 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
weak to none
0.01
-
1.578-1.646
Biaxial/+
Triclinic
0.020-0.030
TransparentUlrich Henn and Claudio C. Milisenda

Phosphosiderite and Amblygonite Optic Character

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

Similar to their colors, Phosphosiderite and Amblygonite 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.