Ceramic vessel 2026-2. Oppidum Puente Tablas
The black color is manufactured using a oxide of manganese identified by MRS as bixbyite/hausmannite (Mn2O3/Mn3O4) and jacobsite (MnFe2O4). Bixbyite/hausmannite are the result of the transformation of pyrolusite when firing temperature is set above 450ºC and below 900ºC. The presence of jacobsite means a temperature reaching the 900ºC.
Analysis by EDXRF of the black color confirms the presence of Mn: 4.52% wt of Mn versus 0.08% wt in the ceramic paste.
Dimensions
: 3 Centimeters
: 2.5 Centimeters
Materials
pottery
Temporal
: Iberian, Iberians
: 5th ct. BC-4th ct. BC
Spatial
: Oppidum de Puente Tablas
: Puente Tablas, Jaén, Spain
: WGS84
Copyrights
Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
References
Ruiz A. y M. Molinos (coord.) (2015): Jaén, tierra ibera. 40 años de investigación y transferencia. Universidad de Jaén.
Nueva Referencia
Digital Resources
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Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
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Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
Arquiberlab
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Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
Arquiberlab
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Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
Arquiberlab
http://creativecommons.org/licenses/by-nc-nd/3.0/ -
Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
Arquiberlab
http://creativecommons.org/licenses/by-nc-nd/3.0/ -
Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
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Pdf file
Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
Arquiberlab
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Activities
Archaeometric analysis Physical-chemical analysis Ceramic. Analysis of decoration
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Raman Microscopy Mineral analysis of the red and black decoration Non destructive. Surface cleaning. Sample pretreatment is not required. Direct measurement. Micro-Raman Spectroscopy (MRS) Renishaw ‘in via’ Reflex Spectrometer coupled with a confocal Leica DM LM microscope (CICT, University of Jaén), equipped with a diode laser (785 nm, 300 mW), and a Peltier-cooled CCD detector, calibrated to the 520.5 cm-1 line of silicon. | |
X-Ray Fluorescence Elemental analysis of the red and black decoration Non destructive. Surface cleaning. Sample pretreatment is not required. Direct measurement. Energy dispersive X- ray fluorescence (EDXRF) EDAX (model Eagle III) fluorescence spectrometer (CITI, University of Seville). This spectrometer is equipped with a microfocus X-ray tube with an Rh anode, a polycapillary lens for X-ray focussing, and an 80 mm2 energy dispersive Si-(Li) detector. The sample chamber incorporates an XYZ motorized stage for sample positioning. A high resolution microscope is used to position the sample on the desired distance from the polycapillary. To increase the sensitivity of the low Z elements, the sample chamber can be brought under vacuum. For the analysis of the samples, a spot size of 300 μm was chosen at an operating X-ray tube voltage of 40 kV. The tube current was adapted for each sample in order to optimise the detection of X-rays. |
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