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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Pre-Columbian goldworking of the Chibchan area ： ウィキペディア英語版 Pre-Columbian goldworking of the Chibchan area The Chavín culture of modern Peru began to work gold and other metals as early as 1200- 500 B.C. In fact a primary reason why conquistadores came to the Americas was to find and obtain gold from the native peoples either through trade or tribute. Gold has been a unique and vastly important commodity for both prehistoric Chibchan and contemporary people. Gold is considered to be incorruptible because it does not oxidize and its chemical nature can not be changed without human manipulation. Another characteristic of gold is that, in comparison with other metals, and certainly with jade, it is quite malleable—meaning it can be shaped easily. Its color, brilliance, and its aural qualities were also important for Chibchan. There are, however, some indications that gold had curative properties for Chibchan peoples. For example, groups who lived in Colombia would use gold to make poporos that held their lime and held great religious significance for their ''mamas'', who were the spiritual and political leaders for the community. The Chibchan peoples were so adept at working with gold that they invented a technique of working gold that was developed in other places in history and is still used today: lost-wax casting. Furthermore, with the use of lost wax casting, the Chibchan people were no longer using pure gold, but a gold and copper alloy called ''tumbaga''. Using both gold, (associated with maleness, the sun and immortality) and copper (associated with femaleness as well as mortality) was possibly understood as a spiritual mixing of men and women (Falchetti 347-348). Tumbaga, when compared to pure gold, is harder, making it harder to work without heating it. Tumbaga also has a lower melting point making it easier to work with, and finally tumbaga has a redder color which is comparable to the rising or setting sun. ==References== * Jeffery Quilter and John W. Hoopes, eds. ''Gold and Power in Ancient Costa Rica, Panama, and Colombia'' (Dumbarton Oaks Pre-Columbian Conference Proceedings). Washington, D.C.: Dumbarton Oaks Research Library and Collection, 2003. ISBN 0-88402-294-3. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pre-Columbian goldworking of the Chibchan area」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.