{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,14]],"date-time":"2025-10-14T00:58:00Z","timestamp":1760403480807,"version":"build-2065373602"},"reference-count":34,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2025,5,21]],"date-time":"2025-05-21T00:00:00Z","timestamp":1747785600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001824","name":"Grantov\u00e1 Agentura \u010cesk\u00e9 Republiky","doi-asserted-by":"publisher","award":["22\u201017966S"],"award-info":[{"award-number":["22\u201017966S"]}],"id":[{"id":"10.13039\/501100001824","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ChemPlusChem"],"published-print":{"date-parts":[[2025,7]]},"abstract":"<jats:p>A comprehensive approach is taken to investigate the \u201cHungarian mine green\u201d pigment, including a historical overview, analysis of the pigment on artworks, and its laboratory replication. It is known that in the past, the pigment is collected in wooden reservoirs in which copper (Cu) compounds precipitated from drainage water during copper mining at \u0160pania Dolina\u2013Piesky and \u013dubietov\u00e1 deposits, Slovakia. Microsamples of four polychrome wooden sculptures from the 16th\u201017th centuries are examined. Posnjakite (Cu<jats:sub>4<\/jats:sub>SO<jats:sub>4<\/jats:sub>(OH)<jats:sub>6<\/jats:sub>\u00b7H<jats:sub>2<\/jats:sub>O) and malachite (Cu<jats:sub>2<\/jats:sub>(CO<jats:sub>3<\/jats:sub>)(OH)<jats:sub>2<\/jats:sub>) are most frequently detected by X\u2010ray powder microdiffraction. In rock samples from the mine site, brochantite (Cu<jats:sub>4<\/jats:sub>SO<jats:sub>4<\/jats:sub>(OH)<jats:sub>6<\/jats:sub>) and malachite are dominant, and in recent precipitates, only langite (Cu<jats:sub>4<\/jats:sub>SO<jats:sub>4<\/jats:sub>(OH)<jats:sub>6<\/jats:sub>\u00b72H<jats:sub>2<\/jats:sub>O) is detected, remained in contact with leaking water. In the laboratory, the pigment is prepared by gradually enriching the starting CuSO<jats:sub>4<\/jats:sub>\u00b75H<jats:sub>2<\/jats:sub>O solution with NaHCO<jats:sub>3<\/jats:sub> in two series of experiments. The initial concentration of the reactants reflected the ratio of Cu<jats:sup>2+<\/jats:sup>: HCO<jats:sub>3<\/jats:sub><jats:sup>\u2212<\/jats:sup> = 1:1 found in the mine waters at the site, from which langite crystallizes. However, langite does not formed, while brochantite gradually transformed into posnjakite and subsequently malachite. The co\u2010occurrence of basic copper sulfates and carbonates and the characteristic grain morphology proved to be the main indicators of the pigment in artworks.<\/jats:p>","DOI":"10.1002\/cplu.202500053","type":"journal-article","created":{"date-parts":[[2025,5,5]],"date-time":"2025-05-05T05:19:17Z","timestamp":1746422357000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["\u201cHungarian Mine Green\u201d, a Semi\u2010Natural Copper Pigment from Bansk\u00e1 Bystrica Region (Slovakia) \u2010 Analytical Evidence and Laboratory Replication"],"prefix":"10.1002","volume":"90","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5069-291X","authenticated-orcid":false,"given":"Mark\u00e9ta","family":"\u017d\u016frkov\u00e1","sequence":"first","affiliation":[{"name":"ALMA Laboratory Institute of Inorganic Chemistry of the Czech Academy of Sciences  Husinec 1001 Husinec\u2010\u0158e\u017e 250 68 Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David","family":"Hradil","sequence":"additional","affiliation":[{"name":"ALMA Laboratory Institute of Inorganic Chemistry of the Czech Academy of Sciences  Husinec 1001 Husinec\u2010\u0158e\u017e 250 68 Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Janka","family":"Hradilov\u00e1","sequence":"additional","affiliation":[{"name":"ALMA Laboratory Institute of Inorganic Chemistry of the Czech Academy of Sciences  Husinec 1001 Husinec\u2010\u0158e\u017e 250 68 Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Petr","family":"Bezdi\u010dka","sequence":"additional","affiliation":[{"name":"ALMA Laboratory Institute of Inorganic Chemistry of the Czech Academy of Sciences  Husinec 1001 Husinec\u2010\u0158e\u017e 250 68 Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Silvie","family":"\u0160varcov\u00e1","sequence":"additional","affiliation":[{"name":"ALMA Laboratory Institute of Inorganic Chemistry of the Czech Academy of Sciences  Husinec 1001 Husinec\u2010\u0158e\u017e 250 68 Czech Republic"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,5,21]]},"reference":[{"key":"e_1_2_8_2_1","first-page":"180","volume":"109","author":"Burmester A.","year":"2003","journal-title":"Restauro"},{"key":"e_1_2_8_3_1","unstructured":"G.Heydenreich M.Spring M.Stillhammerov\u00e1 C. 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