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Statements

Subject Item
n2:RIV%2F61388980%3A_____%2F10%3A00374383%21RIV12-AV0-61388980
rdf:type
n14:Vysledek skos:Concept
dcterms:description
Pigments containing iron, although they form a very large group, have never been considered very suitable for datation of color layers and identification of the origin of the painting, due to their abundant occurrence in nature, good availability and widespread use in all historical and pre-historical periods of 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. It was obviously convenient to preferably use raw materials from a close and thus also cheaper source. For the purposes of statistical comparison we evaluated elemental composition of earthy grounds on 70 paintings from the 16(th)-18(th) centuries from Czech collections. We performed detailed mineralogical analyses for a selected representative number of grounds on 35 samples in total. We discerned 6 types of material in total 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. Thus we were able to assign anonymous paintings to an appropriate place of origin. Pigments containing iron, although they form a very large group, have never been considered very suitable for datation of color layers and identification of the origin of the painting, due to their abundant occurrence in nature, good availability and widespread use in all historical and pre-historical periods of 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. It was obviously convenient to preferably use raw materials from a close and thus also cheaper source. For the purposes of statistical comparison we evaluated elemental composition of earthy grounds on 70 paintings from the 16(th)-18(th) centuries from Czech collections. We performed detailed mineralogical analyses for a selected representative number of grounds on 35 samples in total. We discerned 6 types of material in total 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. Thus we were able to assign anonymous paintings to an appropriate place of origin.
dcterms:title
New kriteria for classification and differentiation between clay and iron oxide pigment sof various origins New kriteria for classification and differentiation between clay and iron oxide pigment sof various origins
skos:prefLabel
New kriteria for classification and differentiation between clay and iron oxide pigment sof various origins New kriteria for classification and differentiation between clay and iron oxide pigment sof various origins
skos:notation
RIV/61388980:_____/10:00374383!RIV12-AV0-61388980
n3:aktivita
n12:Z
n3:aktivity
Z(AV0Z40320502)
n3:dodaniDat
n7:2012
n3:domaciTvurceVysledku
n16:5758491 n16:7933665
n3:druhVysledku
n20:D
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
274702
n3:idVysledku
RIV/61388980:_____/10:00374383
n3:jazykVysledku
n15:eng
n3:klicovaSlova
earth pigments; earths; bole grounds; mineralogical analysis; clay minerals; X-ray microdiffraction
n3:klicoveSlovo
n5:clay%20minerals n5:earths n5:X-ray%20microdiffraction n5:bole%20grounds n5:earth%20pigments n5:mineralogical%20analysis
n3:kontrolniKodProRIV
[D59CC2BCB523]
n3:mistoKonaniAkce
Praha
n3:mistoVydani
Praha
n3:nazevZdroje
ACTA ARTIS ACADEMICA 2010: THE STORY OF ART - ARTWORK CHANGES IN TIME
n3:obor
n8:CA
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n7:2010
n3:tvurceVysledku
Bezdička, Petr Hradilová, J. Hradil, David
n3:typAkce
n10:EUR
n3:wos
000288141200007
n3:zahajeniAkce
2010-11-24+01:00
n3:zamer
n6:AV0Z40320502
s:numberOfPages
14
n19:hasPublisher
Akademie výtvarných umění v Praze
n18:isbn
978-80-87108-14-7