Rock and Mineral Preparation

The best analytical equipment is of no value without good samples. We maintain central facilities and equipment for cleaning, crushing and grinding rock samples, for mineral separation (gravity and magnetic techniques) and for the production of thin and polished sections and grain mounts.

Rock specimens are cleaned, oven-dried and crushed to coarse sand size with a steel jaw crusher and/or roller mill. All grinding equipment (planetary ball mills, mortar grinders, spectro mills, vibratory disc mills) utilizes agate to minimize contamination. Sieves and sample splitters are also available. Mineral separation equipment include electromagnetic separators, wet shaking table for heavy minerals and facilities for heavy liquid separation and hand-picking under a stereo microscope.

Production of thin and polished sections is semi-automated and polishing is done by alumina and diamond to avoid surface contamination. The high demands on surface quality imposed by the high-resolution microbeam instruments (FEI-microprobe, SIMS) require hand-finishing of most polished sections and grain mounts.

Contact: Mineral separation

Profile photo of  Priv. Doz. Dr. Johannes Glodny

Priv. Doz. Dr. Johannes Glodny
Inorganic and Isotope Geochemistry

Telegrafenberg
Building B, room 128
14473 Potsdam
tel. +49 331 288-1485

Contact: Sample preparation for geochemistry

Ms. Marina Ospald
Inorganic and Isotope Geochemistry

Telegrafenberg
Building B, room 051
14473 Potsdam
tel. +49 331 288-1466

Contact: Thin section and grain mounts

Ms. Elke Lewerenz
Inorganic and Isotope Geochemistry

Telegrafenberg
Building B, room 151
14473 Potsdam
tel. +49 331 288-1463