Authentic elite shungite stones are directly from Karelia from the only field on earth. It is indeed an extremely rare mineral on earth. This is only found in one region on earth. We are located in this region and provide an opportunity to get genuine elite shungite directly from the deposit. These pieces are big in size. It is about 0.8 - 1.2 inches in length. (2 to 3 cm) but thanks to this, the area of contact with the water is maximum. The area of contact with the water of these stones is also large.
Please note that real elite shungite stones may contain a certain amount of natural quartz crystals. In addition, some pieces may have some visible traces of rust. This is the natural oxidation of Quartz on oxygen. It is a safe mineral as well. You can remove such pieces if you see fit.