Twenty-six tesserae (red, orange, yellow, light amber, green, blue and white) from the balneum of the villa at Faragola (Ascoli Satriano, Foggia) have been examined by colorimetry, ICPMS, ICPOES and SEMEDS. Different types of calcareous sands have been used as the source of silica (network former), also providing the stabilizing agent. A natron-type soda source served as the network modifier; however, the use of a sodium-rich plant ash and the recycling process have been hypothesized for the production of two tesserae (FT 1 red and FT 3 orange). The colouring and opacifying agents were Cu oxide (cuprite, orange), metallic copper (red), Pb antimonates (yellow), Ca antimonates (white), a mixture of copper (Cu2+) and Pb antimonates (green), a mixture of cobalt (Co2+) or copper (Cu2+) and Ca antimonates (blue). The light amber tesserae should owe their colour to iron (Fe3+) alone or associated with sulphide (S2-) and Ca antimonates. It is likely that the Faragola tesserae were locally produced in a secondary glass workshop.

Gliozzo, E., SANTAGOSTINO BARBONE, A., Turchiano, M., Turbanti, I., Volpe, G. (2012). The coloured tesserae decorating the vaults of the Faragola’s balneum (Ascoli Satriano, Foggia, Southern Italy). ARCHAEOMETRY, 54(2), 311-331 [10.1111/j.1475-4754.2011.00616.x].

The coloured tesserae decorating the vaults of the Faragola’s balneum (Ascoli Satriano, Foggia, Southern Italy)

GLIOZZO, E.;SANTAGOSTINO BARBONE, A.;TURBANTI, I.;
2012-01-01

Abstract

Twenty-six tesserae (red, orange, yellow, light amber, green, blue and white) from the balneum of the villa at Faragola (Ascoli Satriano, Foggia) have been examined by colorimetry, ICPMS, ICPOES and SEMEDS. Different types of calcareous sands have been used as the source of silica (network former), also providing the stabilizing agent. A natron-type soda source served as the network modifier; however, the use of a sodium-rich plant ash and the recycling process have been hypothesized for the production of two tesserae (FT 1 red and FT 3 orange). The colouring and opacifying agents were Cu oxide (cuprite, orange), metallic copper (red), Pb antimonates (yellow), Ca antimonates (white), a mixture of copper (Cu2+) and Pb antimonates (green), a mixture of cobalt (Co2+) or copper (Cu2+) and Ca antimonates (blue). The light amber tesserae should owe their colour to iron (Fe3+) alone or associated with sulphide (S2-) and Ca antimonates. It is likely that the Faragola tesserae were locally produced in a secondary glass workshop.
Gliozzo, E., SANTAGOSTINO BARBONE, A., Turchiano, M., Turbanti, I., Volpe, G. (2012). The coloured tesserae decorating the vaults of the Faragola’s balneum (Ascoli Satriano, Foggia, Southern Italy). ARCHAEOMETRY, 54(2), 311-331 [10.1111/j.1475-4754.2011.00616.x].
File in questo prodotto:
File Dimensione Formato  
Faragola tesseraebagno.pdf

non disponibili

Tipologia: Post-print
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 1.21 MB
Formato Adobe PDF
1.21 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
AbstractFaragolabagno.pdf

non disponibili

Tipologia: Abstract
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 47.23 kB
Formato Adobe PDF
47.23 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/17237
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo