You’ll find the upper jaw of a woolly mammoth from the North Sea with two original tusks. And a 3.5 million year old polished piece of tiger iron, a silent witness to our planet’s first oxidation process. There’s an ammonite which is 160 million years old, a side table with a top made of a single piece of rock crystal and pyrites crystals found in Spain which display perfect natural cubes with a golden sheen. And there is a great deal more.

Ever since he took over his father’s business, Roy Masin (1964) has been working in the world of spectacular geological treasures. Every year he travels the world for months at a time, looking out for special discoveries. And now the fruits of his phenomenal knowledge and experience are temporarily to be seen in the Nieuwe Spiegelstraat.