Sources List

http://cavemanchemistry.com/cavebook/chmetal2.html

http://www.bartleby.com/65/br/bronz-met/html

http://webr.ucsd.edu/~dkjordan/arch/metallurgy.html

http://www.curriculumvisions.com/Elements/Copper.html

http://mineral.galleries.com/minerals/carbonat/azurite/azurite.htm

http://www.vikingsword.com/ethforum/messages/975.html

Knauth, Percy. Time-Life Books: The Emergence of Man. Time Inc. 1974.

St. John, Jeffery. Precious Metals. Time-Life Books Inc. 1984.

Mondadori, Arnaldo. The MacDonald Encyclopoedia of Rocks and Minerals. MacDonald and Co. London. 1983.

Newmark, Ann. Chemistry. Dorling Kindersly Publishing Inc. New York. 2000.

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