Monazite, Thorium, and Mesothorium

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The monazite industry in the United States has been practically at a standstill since 1906, principally for the reason that monazite could be mined and Obtained cheaper from Brazil, where large deposits are found an...