Tessera 22. Octagons mosaic (Cástulo, Linares, Spain)

Red tessera from the Octagons Mosaic located in Building D of Area 2 at the Cástulo archaeological site (Linares, Jaén, Spain). It forms part of the decorative motif of the central red octagon. Raman spectroscopy shows the presence of dolomitic limestone (CaCO₃) and quartz (SiO₂). Elemental analysis by XRF indicates a high concentration of Si (45.67 wt%) and Ca (36.42 wt%). The raw material used in its creation was therefore a quartz sandstone.
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Dimensions

: 1 Centimeters

: 1 Centimeters

Materials

Stone

Temporal

: Roman

: Late 1st ct.-2nd ct. AD

Otros metadatos

Spatial

  • : Cástulo. Octagons Mosaic
  • : Linares, Jaén, Spain
  • : WGS84
 

Copyrights

Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)

References

Castro, M. (coord.) (2014): Cástulo en movimiento: Avances del proyecto Forvm MMX (2011-2012). Revista Siete Esquinas, 6. Número monográfico.

Ortofoto mosaico de los Octogonos

Europeana: ciudad ibero-romana de Cástulo

Digital Resources

  • Tessera 22
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
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  • Tessera 2 in the decorative motif of the central red octagon
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
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  • Octagons mosaic
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
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  • Tessera 22. Raman analysis IUIAI-UJA
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
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  • IUIAI-UJA
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
    [ver más...] [ver menos]
  • IUIAI-UJA
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
    [ver más...] [ver menos]

Activities

  • Archaeometric analysis

University Research Center for Iberian Archaeology

Raman Microscopy

Mineralogical analysis

Non destructive. Surface cleaning. Sample pretreatment is not required. Direct measurement.

Portable Raman spectrometer (model BWS445-785S innoRam) equipped with a CCD detector, a handheld fiber-optic probe, an automated MicroBeam tripod, a benchtop stand for small samples, and a BAC151A camera (University Research Institute for Iberian Archaeology, University of Jaén). A 785 nm diode laser (300 mW) was used, with a spectral resolution better than 4.5 cm-1

X-Ray Fluorescence

Elemental analysis

Non destructive. Surface cleaning. Sample pretreatment is not required. Direct measurement.

Olympus Vanta C portable X-ray fluorescence spectrometer with a rhodium (Rh) anode X-ray tube and a 20 mm² SDD detector. An aluminum (Al) filter was applied to measure high-Z elements (Z > 26) with a voltage of 40 kV and a current of 38.7 µA. Without Al-filter, a voltage of 10 kV and a current of 50.8 µA were used for low-Z elements (12 > Z > 26). Measurements were performed in air for 60 s. The dimensions of the X-ray beam collimator were 3 × 3 mm².
 

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