뇌성산은 국내 유일한 뇌록의 산출지이다. 본 산출지는 지질학적 가치와 함께 전통안료의 공급지로서의 역사·문화적 가치를 인정받아 2013년에 천연기념물 제547호로 지정 및 관리되어 연구 및 활용이 제한되었으며 이로 인한 뇌록의 제한적 공급에 따른 전통안료 복원에 문제점이 발생하고 있다. 최근 광정산 일대에서 뇌록이 다량 산출되어 전통안료 복원을 위한 공급지로 기대되고 있다. 따라서 본 연구는 광정산 일대에서 산출되는 뇌록으로 제조한 안료의 특성을 분석하고 추후 안료로서의 활용 가능성을 평가하고자 하였다. 제조한 안료의 특성 분석 결과, 뇌성산 뇌록은 대부분 셀라도나이트로 구성되어 있으며 광정산 뇌록은 셀라도나이트 외 크리스토발라이트, 트리디마이트 등의 유리질 특성을 보이는 광물이 함유되어 있었다. 광정산 뇌록안료는 광물 종류 및 함량의 차이에 따라 색도, 입도, 흡유량, 안정성 평가 결과가 달라지는 것을 확인하였다. 특히 GJS-2는 광물 조성비 및 물성, 안정성 면에서 뇌성산 뇌록과 유사한 특성을 보였다. 이를 통해 천연기념물 지정으로 활용하기 어려운 뇌성산 뇌록을 대신하여 추후 활용 가능할 것으로 사료된다.
뇌성산은 국내 유일한 뇌록의 산출지이다. 본 산출지는 지질학적 가치와 함께 전통안료의 공급지로서의 역사·문화적 가치를 인정받아 2013년에 천연기념물 제547호로 지정 및 관리되어 연구 및 활용이 제한되었으며 이로 인한 뇌록의 제한적 공급에 따른 전통안료 복원에 문제점이 발생하고 있다. 최근 광정산 일대에서 뇌록이 다량 산출되어 전통안료 복원을 위한 공급지로 기대되고 있다. 따라서 본 연구는 광정산 일대에서 산출되는 뇌록으로 제조한 안료의 특성을 분석하고 추후 안료로서의 활용 가능성을 평가하고자 하였다. 제조한 안료의 특성 분석 결과, 뇌성산 뇌록은 대부분 셀라도나이트로 구성되어 있으며 광정산 뇌록은 셀라도나이트 외 크리스토발라이트, 트리디마이트 등의 유리질 특성을 보이는 광물이 함유되어 있었다. 광정산 뇌록안료는 광물 종류 및 함량의 차이에 따라 색도, 입도, 흡유량, 안정성 평가 결과가 달라지는 것을 확인하였다. 특히 GJS-2는 광물 조성비 및 물성, 안정성 면에서 뇌성산 뇌록과 유사한 특성을 보였다. 이를 통해 천연기념물 지정으로 활용하기 어려운 뇌성산 뇌록을 대신하여 추후 활용 가능할 것으로 사료된다.
Mt. Neoseongsan (NSS) is the only natural Neorok source in Korea. The geological, historical, and cultural values of NSS were recognized in 2013, and NSS has since been designated and maintained as a natural monument (No. 547), which has restricted the research and utilization of NSS Neorok. The lim...
Mt. Neoseongsan (NSS) is the only natural Neorok source in Korea. The geological, historical, and cultural values of NSS were recognized in 2013, and NSS has since been designated and maintained as a natural monument (No. 547), which has restricted the research and utilization of NSS Neorok. The limited NSS Neorok supply has hindered the restoration research of traditional pigments. Recently, a large amount of Neorok has been mined from Mt. Gwangeongsan (GJS) and is expected to be the main supply source of Neorok for restoring traditional pigments. Therefore, this study analyzed the characteristics of NSS- and GJS-Neorok-based pigments to evaluate the feasibility of substituting GJS Neorok for NSS Neorok in pigments. The NSS Neorok was mostly comprised of celadonite, whereas the GJS Neorok included minerals containing glassy phases such as celadonite, cristobalite, tridymite, etc. Because both Neorok samples were vitrified under identical conditions, the GJS Neorok grains were larger than the NSS Neorok ones. The GJS Neorok pigment showed that the chromaticity, grain size, oil absorption, and stability varied depending on the mineral types and contents. In particular, GJS-2 and NSS Neorok showed similar mineral compositions, physical properties, and stabilities, suggesting that GJS-2 can be substituted for NSS Neorok, which has been difficult to source and utilize ever since NSS was designated as a natural monument.
Mt. Neoseongsan (NSS) is the only natural Neorok source in Korea. The geological, historical, and cultural values of NSS were recognized in 2013, and NSS has since been designated and maintained as a natural monument (No. 547), which has restricted the research and utilization of NSS Neorok. The limited NSS Neorok supply has hindered the restoration research of traditional pigments. Recently, a large amount of Neorok has been mined from Mt. Gwangeongsan (GJS) and is expected to be the main supply source of Neorok for restoring traditional pigments. Therefore, this study analyzed the characteristics of NSS- and GJS-Neorok-based pigments to evaluate the feasibility of substituting GJS Neorok for NSS Neorok in pigments. The NSS Neorok was mostly comprised of celadonite, whereas the GJS Neorok included minerals containing glassy phases such as celadonite, cristobalite, tridymite, etc. Because both Neorok samples were vitrified under identical conditions, the GJS Neorok grains were larger than the NSS Neorok ones. The GJS Neorok pigment showed that the chromaticity, grain size, oil absorption, and stability varied depending on the mineral types and contents. In particular, GJS-2 and NSS Neorok showed similar mineral compositions, physical properties, and stabilities, suggesting that GJS-2 can be substituted for NSS Neorok, which has been difficult to source and utilize ever since NSS was designated as a natural monument.
Ahn, B.C., Do, J.Y., Kim, S.J., Lee, K.K. and Lee, S.J., 2007, Study on the development of high performance Noerok pigment through characterization of traditional minerological raw material. Project Research Report, National Science Museum. (In Korean with English abstract)
Jang, Y.D., 2017, A report on the collection and preservation methods of Noerok and its causes occurred the southeastern part of Gwangjeong mountian in Janggimyeon of Nam-gu, Pohang. Kyungpook National University, Korea Lang & Housing Corporation, 5-18.
Jeong, G.Y., Cho, H.G., Do, J.Y., 2018, Occurrence and mineralogical properties of Green-Blue inorganic pigments in Korea. Journal of the Mineralogical Society of Korea, 31, 33-46. (In Korean with English abstract)
Kim, M., 2007, Study on Noerok from Mt. Noeseongsan, Pohang, Gyeongsangbuk-do. Journal of BULKYOMI SULSAHAK, 5, 621-632.
Korean Industrial Standards, 1980, KS M ISO 787-5; General methods of test for pigments and extenders-part 5: determination of oil absorption value.
Lee, S.J., Choi, I.S., Lee, K.K., Do, J.Y. and Ahn, B.C., 2007, An analysis of Noerok used in temple Dancheong in Gyeongju area. The Kyong ju MunHwa Youn Gu, 9, 1-12. (in Korean with English abstract).
Lee, J.J., Kim, J.H. and Han, M.S., 2018, Mineralogical characteristic changes of Noerok occurred from Noeseong mountain, a raw material for pigment, depending on its firing process. Journal of the Mineralogical Society of Korea, 31, 23-32. (In Korean with English abstract)
Mun, S.W., Kim, J.H., Kong, D.Y., Moon, D.H. and Jeong, H.Y., 2018, A Study on the various Noerok from Janggimyeon, Pohang. Journal of the Petrological Society of Korea, 27(4), 195-205. (in Korean with English abstract).
Park, J.H., Jeong, H.Y., Go, I.H., Jeong, S.L. and Jo, A.H., 2015, A Study on the physical properties of Seokrok and Noerok used as green pigment. Journal of Conservation Science, 31(4), 429-441. (In Korean with English abstract)
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