The Seramis clay granulate is manufactured from high quality clay found only in Westerwald region of Germany. This area has been famous for its pottery since the 16 th century. The clay is mined from deposits laid down during the tertiary period 25-40 million years ago, and consists mainly of the minerals kaolinite, illite and quartz. It also contains other iron compounds and titanium. The open cast mining has regulations that stipulate that the land must be reclaimed after completion, with pits filled in or made into lakes. The surrounding area is then reforested and landscaped. Approximately 3 million tonnes are extracted annually with only a fraction being used for Seramis. |