Sep 15, 2015· Thread: Abandoned gold mine, wales. March 2014. ... Bristol, UK. Posts 9,985 Thanked 6212. I would have thought that "gold" in the last photo is actually pyrite (iron sulfide, aka fools gold), you do not get chunky seams of gold like that in the UK, and if you did people would certainly have mined them out long before urbexers could amble in there.