Journal
The turquoise mosaics of ancient Mexico survive mainly as museum-held objects taken to Europe during the conquest. What Joseph E. Pogue's 1915 study recorded about them, with page numbers.
How turquoise was valued, traded and worn in Tibet, Mongolia and China, quoted from Joseph E. Pogue's 1915 study with page numbers.
How turquoise was written about from ancient Egypt and Persia to the chemists of the 1800s, quoted from Joseph E. Pogue's 1915 study with page numbers.