
Striped flint
It’s hard to write about striped flint, without mentioning Cezary Łutowicz. He was the person who, more than 40 years ago, saw for the first time the potential in a piece of rock which was used on the roads of Sandomierz in the form of crushed stone. It turned out that flint, which was nothing special for the inhabitants of the region, possessed properties which successfully qualified it to be eligible gemstone. It is hard (almost 7 on the Mohs scale), decorative and extremely rare: it can only be found in Poland, mostly in the Świętokrzyskie Mountains.