X-ray Diffraction Analysis of Clay Particles in Ancient Baekje Black Pottery: Indicator of the Firing Parameters

An X-ray diffraction (XRD) analysis was conducted after separating clay particles from three shards, to analyze the production technique of black pottery excavated from a historical site of ancient Baekje in Seoul, South Korea. Through the analysis, clay minerals and iron oxides that were not recogn...

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Main Authors: Dong-Hyeok Moon, So-Jin Kim, Sang-Won Nam, Hyen-Goo Cho
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Minerals
Subjects:
Online Access:https://www.mdpi.com/2075-163X/11/11/1239
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author Dong-Hyeok Moon
So-Jin Kim
Sang-Won Nam
Hyen-Goo Cho
author_facet Dong-Hyeok Moon
So-Jin Kim
Sang-Won Nam
Hyen-Goo Cho
author_sort Dong-Hyeok Moon
collection DOAJ
description An X-ray diffraction (XRD) analysis was conducted after separating clay particles from three shards, to analyze the production technique of black pottery excavated from a historical site of ancient Baekje in Seoul, South Korea. Through the analysis, clay minerals and iron oxides that were not recognized in the XRD patterns of the bulk powder samples were identified. A pottery type with a blackened portion from the surface to the margin and the core was estimated to have been produced in a reduction firing environment of less than 900 °C, by detecting illite and magnetite. As for the other blackened pottery, a brown soil color remained in the core, and the presence of illite and kaolin was confirmed. In addition, while magnetite was detected on the black surface and margin, hematite was detected in the core. These results confirm that this type of blackened pottery was produced through reduction firing at a temperature below 550 °C. In particular, the results indicate that there is a new category of pottery, produced by firing at lower temperatures in a reduction atmosphere, previously not reported by research on ancient Baekje black pottery, which could be discovered due to its specific clay particles.
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spelling doaj.art-9cb257f750fe4fa6b3e407210a0b93912023-11-23T00:32:22ZengMDPI AGMinerals2075-163X2021-11-011111123910.3390/min11111239X-ray Diffraction Analysis of Clay Particles in Ancient Baekje Black Pottery: Indicator of the Firing ParametersDong-Hyeok Moon0So-Jin Kim1Sang-Won Nam2Hyen-Goo Cho3Conservation Science Division, National Research Institute of Cultural Heritage, Daejeon 34122, KoreaConservation Science Division, National Research Institute of Cultural Heritage, Daejeon 34122, KoreaResearch Division of Archaeology, National Research Institute of Cultural Heritage, Daejeon 34122, KoreaDepartment of Geology and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, KoreaAn X-ray diffraction (XRD) analysis was conducted after separating clay particles from three shards, to analyze the production technique of black pottery excavated from a historical site of ancient Baekje in Seoul, South Korea. Through the analysis, clay minerals and iron oxides that were not recognized in the XRD patterns of the bulk powder samples were identified. A pottery type with a blackened portion from the surface to the margin and the core was estimated to have been produced in a reduction firing environment of less than 900 °C, by detecting illite and magnetite. As for the other blackened pottery, a brown soil color remained in the core, and the presence of illite and kaolin was confirmed. In addition, while magnetite was detected on the black surface and margin, hematite was detected in the core. These results confirm that this type of blackened pottery was produced through reduction firing at a temperature below 550 °C. In particular, the results indicate that there is a new category of pottery, produced by firing at lower temperatures in a reduction atmosphere, previously not reported by research on ancient Baekje black pottery, which could be discovered due to its specific clay particles.https://www.mdpi.com/2075-163X/11/11/1239clay particleclay mineraliron oxideancient Baekjeblack potterymanufacturing technique
spellingShingle Dong-Hyeok Moon
So-Jin Kim
Sang-Won Nam
Hyen-Goo Cho
X-ray Diffraction Analysis of Clay Particles in Ancient Baekje Black Pottery: Indicator of the Firing Parameters
Minerals
clay particle
clay mineral
iron oxide
ancient Baekje
black pottery
manufacturing technique
title X-ray Diffraction Analysis of Clay Particles in Ancient Baekje Black Pottery: Indicator of the Firing Parameters
title_full X-ray Diffraction Analysis of Clay Particles in Ancient Baekje Black Pottery: Indicator of the Firing Parameters
title_fullStr X-ray Diffraction Analysis of Clay Particles in Ancient Baekje Black Pottery: Indicator of the Firing Parameters
title_full_unstemmed X-ray Diffraction Analysis of Clay Particles in Ancient Baekje Black Pottery: Indicator of the Firing Parameters
title_short X-ray Diffraction Analysis of Clay Particles in Ancient Baekje Black Pottery: Indicator of the Firing Parameters
title_sort x ray diffraction analysis of clay particles in ancient baekje black pottery indicator of the firing parameters
topic clay particle
clay mineral
iron oxide
ancient Baekje
black pottery
manufacturing technique
url https://www.mdpi.com/2075-163X/11/11/1239
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AT sangwonnam xraydiffractionanalysisofclayparticlesinancientbaekjeblackpotteryindicatorofthefiringparameters
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