Isoferroplatinum

Formula

Reflected/transmitted colour:

Pleochroism:

Optical isotropy/anisotropy:

Optical sign:

Refractive indices:

Birefringence δ:

2V angle:

Dispersion:

Optical orientation:

Optical axial plane:

Gray equant cystal of cuproiridsite in light gray isoferroplatinum. Polished section (from microprobe analysis) in reflected light.
Origin: Konder Mine, Konder alkaline-ultrabasic massif, Aldan shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia
Picture size: 0.14 mm
Owner: Thomas Witzke
 

Photo courtesy of: 

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

 

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