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Phosphosiderite
Phosphosiderite

Emerald
Emerald



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Phosphosiderite
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Emerald

Phosphosiderite and Emerald Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Pale rose-red carmine-red colorlessAnthony et al
Strong dichroism: yellow green Lazzarelli

Dispersion

0.040.01
0.005 1
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Transparency

Transparent
Transparent, Translucent, Transparent to translucent

Refractive Index

1.692-1.7391.565-1.602
1 3.25
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Optic Character

-
-

Crystal System

-
Hexagonal

Birefringence

0.2400.0040-0.0070
0 0.296
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Clarity

Transparent
-

Phosphosiderite and Emerald Optic Character

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

Similar to their colors, Phosphosiderite and Emerald 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.