Featuring a table indicating name, variety, hardness, coloring, deposits, and period of greatest use and a map of locating the geographical distribution of precious stones, pearls, coral, and gold.
The regional availability of precious stones and gems affected the types the jewelleries made among each different culture.
Heiniger, Ernst A. and Jean Heiniger, ed. The Great Book of Jewels. Switzerland: Edita Lausanne, 1974, Print.