Petrography depends on the production of high quality thin sections and polished blocks from a representative sample. Petrolab offers a reliable materials preparation service producing petrographic thin sections and polished blocks from samples of rock, aggregate, concrete and other similar materials.

Petrolab, based in Redruth, operate the first Pelcon Automatic Thin Section Machine in the UK, which produces high quality thin sections for their own microscopic analysis. This is a precision machine offering many benefits compared to the traditional techniques and equipment more commonly used in thin section preparation (not least the elimination of carborundum contamination).