http://book.klll.cc/ebooks/subject/22526.opds2025-08-04T00:38:56ZBooks about Mineral industries -- Early works to 1800 (sorted by popularity)Free eBooks since 1971.Project Gutenberghttps://book.klll.ccwebmaster@gutenberg.orghttps://book.klll.cc/gutenberg/favicon.ico2512025-08-04T00:38:56Zhttps://book.klll.cc/ebooks/38015.opdsDe Re Metallica, Translated from the First Latin Edition of 1556Georg Agricola