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Povondraite
Povondraite

Siderite
Siderite



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Povondraite
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Siderite

Povondraite and Siderite Optical Properties

Optical Properties

Luster

Resinous
Pearly

Pleochroism

Strong: yellow-brown
-

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Translucent
Transparent, Translucent

Refractive Index

-99991.633-1.875
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-99990.242
0 0.296
👆🏻

Clarity

Translucent
Transparent

Povondraite and Siderite Optic Character

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

Povondraite and Siderite Transparency

Similar to their colors, Povondraite and Siderite 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, Povondraite is Translucent while Povondraite is Translucent in appearance.