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Title: Mixed sulphate or "black vitriol," Hettstedt Copper Works [Go to resource]
Description: Mixed sulphate or "black vitriol," Hettstedt Copper Works License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1889-164/719 Go to resource More Like this...-
Concentrated copper regulus, "Kupferstein,"…Concentrated copper regulus, "Kupferstein," Hettstedt,…
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