Guanín (bronze)
It is a common misconception that pre-Columbian Americas lacked bronze and thus were not able to deploy hardened copper alloys. However, copper alloys are reported as guanín by Columbus, a loan word borrowed from the Taino.[1] This misconception may well arise because tin, the common component of Eurasian bronze (although common in Bolivia), is rare in the Caribbean basin.
Notwithstanding, copper, iron, manganese, nickel, chromium, cobalt and zinc mixed into a matrix of iron sulfides and other metal sulfides including gold, cobalt and nickel are readily available, often glittering in as natural ores such as pyrite (fool's gold), the brassy golden yellow cubanite, and marcasite. Deposits of these ores are found on the surfaces of the formerly submerged karst rock formations of these islands.
Guanín may alternatively have been a manganese bronze. Today US "gold dollars" are made of an alloy of 88.5% copper, 6% zinc, 3.5% manganese and 2% nickel,[2] which may be similar to guanin, although nickel would not have been included in guanin due to its high melting point.
Columbus's report of metal axes in lands and seas of the Caribbean, although viewed skeptically by some, cannot be readily dismissed.[3] In this aforecited article, authors attribute this bronze to the Mayans. One might bear in mind the Mayans were trading contacts with the Taínos who used the word guanín to describe the copper-gold alloys they used for ornamental and religious purposes.[4] Additionally there were readily available natural deposits of the necessary ores (see above) in the Major Antilles. The existence of Pre-Columbian era metal tools in the Americas is now considered academic and historical "fact",[5] although the question remains as to which ethnicities, nations or civilizations used these objects. Thus classification of Taíno technological progress as merely Neolithic may well be an misinterpretation awaiting archeological resolution of Taíno use of guanín alloy tools.
References
- ↑ Jeffrey Quilter and John W. Hoopes, Editors. Gold and Power in Ancient Costa Rica, Panama, and Colombia. Dumbarton Oaks Research Library and Collection, 2003.
- ↑ Daniel E. Edelstein. "Copper" (PDF). Minerals.usgs.gov. Retrieved 2016-01-28.
- ↑ Douglas T. Peck, The Little Known Scientific Accomplishments of the Seafaring Chontal Maya from Northern Yucatan at the Wayback Machine (archived January 7, 2014)
- ↑ Reniel Rodríguez Ramos (26 December 2011). "CARIBBEAN / Guanin". Encyclopedia of Puerto Rico.
- ↑ Pre-Columbian Collection at the Wayback Machine (archived July 16, 2006), Dumbarton Oaks.