. "000288141200007" . "Akademie v\u00FDtvarn\u00FDch um\u011Bn\u00ED, Praha" . . . . "In this paper we have verified that mineralogical composition of clay minerals in earthy pigments is a suitable tool for more detailed specification of material provenance and, in the case of ground layers, also the provenance of the artwork as such. For the purposes of statistical comparison we evaluated elemental composition of earthy grounds on 70 paintings from the 16th \u2013 18th centuries from Czech collections. We performed detailed mineralogical analyses for a selected representative number of grounds \u2013 on 35 samples in total. We discerned 6 types of material in total \u2013 2 types of boles, 3 types of other earths, and one type representing iron-rich red from oxidized zones of hydrothermal ore deposits. We were able to distinguish between earthy pigments of Central European origin (coming from Czech and Bavarian locations) and those coming from North-Italian sources." . . "Hradilov\u00E1, Janka" . "52810" . . . "ACTA ARTIS ACADEMICA 2010: THE STORY OF ART - ARTWORK CHANGES IN TIME" . "In this paper we have verified that mineralogical composition of clay minerals in earthy pigments is a suitable tool for more detailed specification of material provenance and, in the case of ground layers, also the provenance of the artwork as such. For the purposes of statistical comparison we evaluated elemental composition of earthy grounds on 70 paintings from the 16th \u2013 18th centuries from Czech collections. We performed detailed mineralogical analyses for a selected representative number of grounds \u2013 on 35 samples in total. We discerned 6 types of material in total \u2013 2 types of boles, 3 types of other earths, and one type representing iron-rich red from oxidized zones of hydrothermal ore deposits. We were able to distinguish between earthy pigments of Central European origin (coming from Czech and Bavarian locations) and those coming from North-Italian sources."@en . . . "New Criteria for Classification of and Differenciation between Clay and Iron Oxide Pigments of Various Origins" . "2010-11-24+01:00"^^ . "RIV/60461446:52810/10:#0000075!RIV11-MSM-52810___" . . "Hradil, David" . . "1"^^ . . "3"^^ . "New Criteria for Classification of and Differenciation between Clay and Iron Oxide Pigments of Various Origins"@en . "978-80-87108-14-7" . "[A4BE35FB4684]" . "Bezdi\u010Dka, Petr" . "RIV/60461446:52810/10:#0000075" . "New Criteria for Classification of and Differenciation between Clay and Iron Oxide Pigments of Various Origins"@en . "12"^^ . . . . . . "Prague, Czech Republic" . "Prague" . "274653" . "New Criteria for Classification of and Differenciation between Clay and Iron Oxide Pigments of Various Origins" . . "earth pigments-earths; bole grounds; mineralogical analysis; cay minerals; X-ray microdiffraction"@en . . "I, Z(MSM6046144603)" .