Phosphosiderite and Schultenite Optical Properties

Phosphosiderite

Schultenite

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1 Optical Properties

1.1 Luster

Vitreous

Vitreous, Adamantine

1.2 Pleochroism

Pale rose-red carmine-red colorlessAnthony et al

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

TransparentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.692-1.7391.890-1.976

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

0.240Not Available

0 0.296

1.9 Clarity

Transparent

TransparentAnthony et al

Phosphosiderite and Schultenite Optic Character

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

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Phosphosiderite and Schultenite Transparency

Similar to their colors, Phosphosiderite and Schultenite 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.