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Phosphosiderite
Phosphosiderite

Vesuvianite Idocrase
Vesuvianite Idocrase



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Phosphosiderite
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Vesuvianite Idocrase

Phosphosiderite and Vesuvianite Idocrase Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Pale rose-red carmine-red colorlessAnthony et al
-

Dispersion

0.040.02
0.005 1
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Transparency

Transparent
Transparent

Refractive Index

1.692-1.7391.700-1.725
1 3.25
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Optic Character

-
Uniaxial/-

Crystal System

-
-

Birefringence

0.2400.002-0.012
0 0.296
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Clarity

Transparent
Transparent

Phosphosiderite and Vesuvianite Idocrase Optic Character

Phosphosiderite and Vesuvianite Idocrase optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Phosphosiderite and Vesuvianite Idocrase 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 Vesuvianite Idocrase 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. Vesuvianite Idocrase has Uniaxial/- character.

Phosphosiderite and Vesuvianite Idocrase Transparency

Similar to their colors, Phosphosiderite and Vesuvianite Idocrase 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.