[1795–1805]This word is first recorded in the period 1795–1805. Other words that entered Englishat around the same time include: baseball, kingpin, steeplechase, unilateral, wrecker
Examples of 'iron pyrites' in a sentence
iron pyrites
The white quartz is riven with dark iron pyrites, better known as fool's gold.
Times, Sunday Times (2009)
They had all been brought in as possible meteorites, but they were iron pyrites.