“It is notable that nearly every Russian officer wears a ring in which a turquoise is set by way of a talisman against violent death.” RussiaRingTurquoise Book:The Bizarre Notes and Queries in History, Folk-Lore, Mathematics, Mysticism, Art, Science, Etc, Vol. 3 Source: The Bizarre Notes and Queries in History, Folk-Lore, Mathematics, Mysticism, Art, Science, Etc, Vol. 3