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Phosphosiderite
Phosphosiderite

Jasper
Jasper



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Phosphosiderite
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Jasper

Phosphosiderite and Jasper Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Pale rose-red carmine-red colorlessAnthony et al
-

Dispersion

0.040.01
0.005 1
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Transparency

Transparent
Opaque

Refractive Index

1.692-1.7391.540
1 3.25
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Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

0.240-9999
0 0.296
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Clarity

Transparent
OpaqueHerve Nicolas Lazzarelli

Phosphosiderite and Jasper Optic Character

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

Similar to their colors, Phosphosiderite and Jasper 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.