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Phosphosiderite
Phosphosiderite

Gedrite
Gedrite



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Phosphosiderite
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Gedrite

Phosphosiderite and Gedrite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Pale rose-red carmine-red colorlessAnthony et al
Weak to moderate

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.692-1.7391.625-1.718
1 3.25
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Optic Character

-
-

Crystal System

-
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Birefringence

0.240-9999
0 0.296
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Clarity

Transparent
Transparent

Phosphosiderite and Gedrite Optic Character

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

Similar to their colors, Phosphosiderite and Gedrite 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.