Platinum

Formula: Pt

Reflected/transmitted colour:

Pleochroism:

Optical isotropy/anisotropy:

Optical sign:

Refractive indices:

Birefringence δ:

2V angle:

Dispersion:

Optical orientation:

Optical axial plane:

Creamy-grayish fractured grains of cherepanovite with gray granular cooperite, white massive grains of iridian ruthenian platinum and white crystals of iridian ruthenian osmium. Polished section in reflected light
Origin: Placer Deposit, Northern Pekul'nei River, Pekul'nei Range, Chukotka (Tchukotka) Okrug, Chukot Peninsula, Far-Eastern Region, Russia
Picture size: 0.12 mm
Owner: Thomas Witzke
 

Photo courtesy of: 

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

 

Back to Alphabetical list Colour photos Physical, chemical and crystallographic description SEM images TEM images vibrational spectra description IR spectra Raman spectra N-IR spectra F-IR spectra IES spectra