strontium (1) sable (1) nickel (1) musée (1) industrie du verre (1) verre (1) datation (1) analyse des données (1) comparaison (1) cobalt (1) point (1) substance chimique (1) carbonate (1) calcium (1) Comparison (1) Dating (1) Identification (1) Antiquities, Prehistoric (1) Exploitation (1) Origin (1) Variations (1) Strontium (1) Social sciences (1) Seventh century (1) Sand (1) Nickel (1) Millennium (Eschatology) (1) Prehistoric peoples (1) Identification (1) Glass weights (1)