Tessera 5. Cástulo. Stars Mosaic (Cástulo, Linares, Spain)

Black tessera from the Stars Mosaic located in Building D of Area 2 at the Cástulo archaeological site (Linares, Jaén, Spain).Raman analysis indicates the presence of aluminosilicates. Elemental analysis shows a majority concentration of Si (44.49 wt%), Al (16.16 wt%), Fe (12.66 wt%), Ca (12.57 wt%), and K (6.34 wt%). These data, along with the petrographic inspection of the tessera, indicate that the original raw material was ophite/dolerite, rocks with high hardness and resistance, and dark green to black in color. These are subvolcanic rocks that appear in small, isolated outcrops among marls on the front of the Betic Cordillera or embedded in the red clays of the Triassic. Numerous small outcrops are found in the province of Jaén.
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Dimensions

: 1 Centimeters

: 1 Centimeters

Materials

Stone

Temporal

: Roman

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

Otros metadatos

Spatial

  • : Cástulo. Stars 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 la Estrellas

Europeana: ciudad ibero-romana de Cástulo

Digital Resources

  • Tessera 5
    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 5 on the star black line
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
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  • Stars 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 5. 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

  • Archaeomeric 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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