Natural Gemstones
by Geological Survey · en · published 2015-01-16
A free public domain ebook from Project Gutenberg. Precious stones -- United States; Precious stones -- Collection and preservation -- United States; Gems -- United States
About this book
Natural Gemstones is one of 76,000+ free public-domain ebooks indexed in the SENTINEL Books catalog, sourced from Project Gutenberg. Published 2015-01-16, written in en, classified under QE in the Library of Congress system.
Subjects: Precious stones -- United States; Precious stones -- Collection and preservation -- United States; Gems -- United States
Bookshelves: Category: Science - Earth/Agricultural/Farming; Category: Sports/Hobbies