http://book.klll.cc/ebooks/subject/41347.opds 2025-09-15T14:25:41Z Books about Petrology -- Laboratory manuals (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-09-15T14:25:41Z https://book.klll.cc/ebooks/76003.opds Minerals in rock sections : The practical methods of identifying minerals in rock sections with the microscope, especially arranged for students in technical and scientific schools Lea McIlvaine Luquer