✅For the manufacture of each pendant, we use authentic raw unprocessed pieces of Elite type 1 shungite. It is the rarest type of shungite and one of the rarest minerals on earth. That is why there are many fakes of this rare mineral from Russia. ✅Elite shungite contains 98% carbon and conducts electric current. This shungite has a gray color but glitters in bright light or sunlight. The braid for each nugget of elite shungite is made of waxed cotton and has an adjustable clasp. ✅The weight of each nugget is unique and ranges from 10 grams to about 13 grams (from 0.02 lbs to 0.03 lbs). The size of each elite shungite stone is approximately 3 to 4 centimeters (from 1.2 to 1.6 inches)