Sentence Examples with the word lead ore

Most of these were simple records of patient and laborious analytical operations, and it is perhaps surprising that among all the substances he analysed he only detected two new elements - beryllium (1798) in beryl and chromium (1797) in a red lead ore from Siberia.

These are little mined at present, only 110 tons of lead ore and 516 tons of zinc ore being taken from the mines in 1908.