But alabaster was too soft, and we were experimenting, many experiments with materials, trying to think how we could have this kind of shimmer, and we ended up with borosilicate.
Ma l'alabastro era troppo delicato, e stavamo sperimentando,  tanti esperimenti con i materiali, cercando di pensare a come arrivare a questo tipo di scintillio, e arrivammo al borosilicato.