Y. S. Fedorov was a versatile scientist. He was a gifted crystallographer, mineralogist, geologist, geometrician, engineer and 
teacher. His scientific heritage is more than 500 scientific works. Only after his work was published, the crystal lost its ‘magic’ character, because Y. S. Fedorov explained its main properties. He worked out 230 geometrical laws of crystallography. His mineral collection is one of his great merits.
He came to Turinskie Rudniki in 1894. Manganese and dolomites were needed for ferrous metallurgy development, and geological exploration was needed for deposits revelation. That is why Y. S. Fedorov was invited to the region.
The work was great and very hard because of severe taiga conditions. He had been carrying out investigations for 5 years. The research methods were absolutely unique. Usually geologists made an observation and then charted hypothetical deposits. Fedorov invented a new way. He made a net of prospecting shafts in an area of 4000 square km. The entire rock specimens (more than 80,000) were charted. That map had a 1:84000 scale on 297 pages. That map was unique and helped to discover new deposits.
Y. S. Fedorov opened a museum. The collection had two parts. The first one demonstrated the geographical map of the region in general. The second showed the specimen from mines. By 1918 there were 220,000 of exhibits, 51,000 of sections (шлиф) 2,500 of different drawings and a unique library.
Y. S. Fedorov visited these places as he said: ‘…to date with my beloved garnet nature’.
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