30 grams of Shungite Elite.  This is the amount you can use in a quart size pitcher of water. This is reusable, and you can also place a chunk in your water bottle to take with you to work or on the road. Shungite is said to clean water and neutralize impurities due to its carbon makeup. Also, when placed in water, fullerenes attract and eliminate waterborne contaminants. Fullerenes are said to help with stress relief.  Science shows that shungite water contains fullerenes and they are effective even in very small doses and the benefits can last for months. These statements have not been evaluated by the FDA, so you can try it and decide for yourself.  Ask your doctor before starting any new programs such as drinking shungite water for health benefits.
30 grams and less than  0.125 lbs