Class: Non-Ferrous MetalsGroup: Heavy metalsSubgroup: Basic Heavy metalsMetal: Lead
References
Ph.D. Natalia Petrovskaya. Fundamentals of the theory of flotation, 2007
https://en.wikipedia.org/wiki/Heavy_metals
http://www.minfind.com/mineral-10647.html
© Ph.D. Natalia Petrovskaya
October 18, 2016
nataliapetrovsky@gmail.com