ReferencesPh.D. Natalia Petrovskaya. Fundamentals of the theory of flotation, 2007
http://www.ngpedia.ru/id156992p1.html
http://webmineral.ru/minerals/item.php?id=21912
http://webmineral.com/data/Roquesite.shtml
https://www.mindat.org/min-3445.html
http://www.handbookofmineralogy.org/pdfs/roquesite.pdf
https://de.wikipedia.org/wiki/Roquesit
https://www.dakotamatrix.com/products/6314/roquesite
© Ph.D. Natalia Petrovskaya
July 7, 2017
nataliapetrovsky@gmail.com