2016
DOI: 10.1016/j.jasrep.2015.12.005
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A mysterious black ornamentation on an Early Bronze Age dagger from Schoolbek (Kosel), Schleswig-Holstein, Germany

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Cited by 3 publications
(2 citation statements)
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“…Among these compounds the most frequent copper phosphate found as a corrosion product is libethenite (Cu 2 (OH)PO 4 ) often associated with cremation sites. Recent work has reported both sampleite and libethenite on a Lydian bed of iron, bronze and copper dating to about 505 BC [35], and libethenite was found by Berger on a Nordic bronze dagger from Schoolbek farm, Schleswig-Holstein, Germany, dating from the mid-2nd millennium BC [36]. Three bronze arrowheads unearthed at Dachengdun site in Anhui province, China all showed libethenite (Cu 2 (OH)PO 4 ) in the corrosion products [37] while corrosion on a pair of bronze tweezers wrapped with silk products and buried near a person's waist in Gansu province, China was found to contain cupric orthophosphate (Cu 3 (PO 4 ) 2 ·3H 2 O) [38].…”
Section: Discussionmentioning
confidence: 99%
“…Among these compounds the most frequent copper phosphate found as a corrosion product is libethenite (Cu 2 (OH)PO 4 ) often associated with cremation sites. Recent work has reported both sampleite and libethenite on a Lydian bed of iron, bronze and copper dating to about 505 BC [35], and libethenite was found by Berger on a Nordic bronze dagger from Schoolbek farm, Schleswig-Holstein, Germany, dating from the mid-2nd millennium BC [36]. Three bronze arrowheads unearthed at Dachengdun site in Anhui province, China all showed libethenite (Cu 2 (OH)PO 4 ) in the corrosion products [37] while corrosion on a pair of bronze tweezers wrapped with silk products and buried near a person's waist in Gansu province, China was found to contain cupric orthophosphate (Cu 3 (PO 4 ) 2 ·3H 2 O) [38].…”
Section: Discussionmentioning
confidence: 99%
“…Larger symbols include more details, for example, dotted lines. Sometimes contrasting colour patterns resembling those on sea urchins were created on metalwork either by inlaying areas with pitch and resin, using artificial patination with ammonia to darken areas, or creating golden strips for more subtle colour variations (Berger 2014;Berger et al 2016). The same star symbol was also discovered on wooden vessels from the Guldhøj and Store Kongehøj, Ribe (Aner & Kersten 1986;nos 3820, 3832).…”
Section: The Cosmological Significance Of Fossilised Sea Urchins and ...mentioning
confidence: 96%