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Title: Concentrated regulus, "Spurstein," after two roastings, Sang [Go to resource]
Description: Concentrated regulus, "Spurstein," after two roastings, Sangershausen Copper Works License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1889-164/702 Go to resource More Like this...
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