PT  - JOURNAL ARTICLE
AU  - Přikryl, Richard
AU  - Racek, Martin
AU  - Weishauptová, Zuzana
AU  - Přikrylová, Jiřina
TI  - Petrographic examination of opuka-stone tombstone of Arnošt of Pardubice with specific focus on provenance determination of natural stone
DP  - 2018 Dec 15
TA  - Průzkumy památek
PG  - 15--24
VI  - 25
IP  - 2
AID - 10.56112/pp.2018.2.03
IS  - 12121487
AB  - Detailed petrographic study of two stone pieces taken from the figural tombstone of the first Prague Archbishop Ernst of Pardubice confirmed its similarity to highly porous, fined-grained sedimentary rocks from the Bohemian Cretaceous Basin (Bílá Hora Form.). This so-called opuka stone is composed of prevailing fine-grained silica with common, but variable admixture of carbonates and clay minerals, making intrabasinal component, supplemented with minor extrabasinal clastic component with fine- to medium-grained silt granulometry. Based on the results from analytical and observational methods, the stone is equal to the so-called "zlatá opuka" which has been quarried in the very vicinity of medieval Prague (Strahov - Bílá Hora area).