Origin of manganese
Examples from the Web for manganese
The fact that the Rio Grande rise also harbors traces of iron and manganese was not lost on the minerals industry.
The total output of manganese in the United States in 1901 was less than 12,000 tons.The History of Cuba, vol. 5|Willis Fletcher Johnson
As long ago as 1774, Rinman observed that steel alloyed with manganese is non-magnetic.Inventors at Work|George Iles
Iron and manganese have, on the contrary, been greatly developed in the same period.
Chromium, like manganese, is very hard to reduce from its ores, owing to its great affinity for oxygen.An Elementary Study of Chemistry|William McPherson
If they did, potassium chlorate would be a better depolarizer than manganese dioxide, instead of the other way around.With No Strings Attached|Gordon Randall Garrett (AKA David Gordon)