Iron-rich volcanoes may hold vast rare earth reserves, study finds
Rare earth element concentrations could be nearly 200 times higher than those found in silicate-rich melts.
China exports for coke and semi-coke in May this year decreased 3.7% on year to 450,000 tonnes, showed the latest data released by the General Administration of Customs. In the first five months, the volume exported from the country totaled 2.13 million
