Polyhalite

 
Origin: Ronneburg U deposit, Gera district, Thuringia, Germany
Picture size: 4.5 mm (top), 1.5 mm (bottom)
Owner: Thomas Witzke
 

Photo courtesy of: 

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

 

Gray brown xln with admixed anhydrite
Origin: Stassfurt salt Mines, Germany
Sample size: 4 x 5.5 cm
 
Origin: Hallstadt, Salzburg, Austria
Sample size: 2.5 x 3 cm
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

Back to Alphabetical list Physical, chemical and crystallographic description Optical properties/Thin sections SEM images TEM images vibrational spectra description IR spectra Raman spectra N-IR spectra F-IR spectra IES spectra