Yes Robert its called having an open mind ( or open mine) and not being one dimensional in ones outlook . Have a look here it explains this section of the forum The Barracks Off topic stuff.Rattle on about whatever here.Rants & raves, general strangeness & anything else you'd like to share. Used to be a free for all. - Modern Religion is no longer welcome, and no Modern Politics whatsoever. http://nora.nerc.ac.uk/id/eprint/14554/1/DMQ_2010.pdf
Have a trawl and mine the internet and you might find your updated quarry. Mine & quarry | Minerals UK