Shungite is a Precambrian carbonaceous rock of organic origin, which had been found only in Russia, Karelia, Lake Onega area. Scientists estimate the age of shungite to be almost 2 billion years. There are three basic types of shungite. Regular shungite, which comes from Zazhoginskaya mine, contains about 30% of carbon, 57% of silicates and 13% of other minerals. This material has black color, matt surface, sometimes with visible inclusions of other minerals. The other type is so-called “noble” shungite, which contains up to 98% of carbon. This one has a metallic lustre. It comes in small quantities from Shunga village. The third type which contains from 70% to 80% of carbon is called Petrovsky shungite. People already used it more than 300 years ago, during the times of Russian Tzar Peter the Great, and this material can still be found, but in very limited quantities. Shungite is considered to be unique for its healing properties. It is said to eliminate all that imposes a hazard on people and living beings, but to concentrate all that is helpful for a human being, and also to shield harmful electromagnetic radiation of any origin like computers, mobile phones and others. A pyramid made of shungite is believed to protect human energy field and reduce stress and insomnia.