Navajun Pyrite La Rioja, Spain Four pieces in the lot 1267g 1. 381g 80x50x50mm 2. 230g 70x50x35mm 3. 300g 65x50x40mm 4. 356g 80x60x45mm Collection samples, perfect cubes in super shine. Undoubtedly, the most beautiful pyrite crystals in the world come from the Navajún deposit in Spain. Gold cubes are mined there in a small quarry. There are many deposits of pyrite, it is even found in coal, but a perfect cube is not often seen anymore. Spanish pyrites should not be missing in any mineral collection. They are mined less and less and the price jumps wildly every year, so be careful with the samples.