I have noticed across the net the use of both terms to describe the artificial flint. I’ve read about the history of its creation, the material properties and thousands of descriptions of use. All I want to know is what is the stuff called?
I was pretty sure it was Ferrocerium until I read Dougs contents justification of his aviation survival pak where he describes the spark-lite as being a ferrocium device.
I have since searched the forum and found 18 uses of ferrocium and over a hundred uses of ferrocerium.
Is this a national difference of a terms, that is common between English English and American English or something else as I cannot seem to find a pattern to their use.

Hope the experience on this forum can solve this for me as it has bugging me for some time.

James.