I have visited the Rammelsberg mining museum on several occasions. It is very interesting but there is virtually no literature about it in english. I bought two small books in german about the mine which looked interesting.

a. Historisher Rammelsberg

b. Das Rammelsberger Gold

I have translated both of them into english bafter some time and effort. The museum seems to have no interest in them whatsoever. If you would like a .pdf copy ot the translations you can have it for free! Let me know.