Actes du premier colloque international de l'association Verre et Histoire, Paris-La Défense / Versailles, 13-15 octobre 2005

Dr Marco VERITÀ, Stazione Sperimentale del Vetro, Venice (Italy)

Italian window glass chemical composition from the Roman time to the 18th century

Table 3 – Venice, 17th-18th centuries:
composition in wt% of the oxides of window glass fragments.

sample colour dating SiO2 Al2O3 Na2O K2O CaO MgO SO3 P2O5 Cl TiO2 Fe2O3 MnO
SL-Anatural17th69,31,4512,24,408,81,600,100,551,000,050,550,05
SL-Bnatural17th68,01,5012,24,808,91,500,150,630,950,060,600,50
Shipwrecknatural17th65,01,7511,64,0011,83,200,270,250,780,120,800,40
MV1colourless17th65,31,0014,22,809,64,250,230,270,780,040,450,97
MV2colourless17th66,11,3012,72,5010,04,500,200,250,710,050,621,00
Don1colourless17th66,01,3513,16,207,92,700,200,270,850,050,650,70
Don2colourless17th68,31,2513,54,407,62,800,200,250,950,050,350,30
BL2vnatural18th67,21,7012,54,459,31,680,090,571,050,101,000,25
BL4vcolourless18th65,21,1011,66,9010,21,500,060,900,900,160,580,88
BL7v1 Green18th60,52,2012,04,1014,03,400,131,300,900,111,000,33