That must be in my favourite piece: a panel cut inkwell in solid aventurine in the Mevlana Museum in Istanbul. Made in Venice (of course), the Turks call it Yildiz Tasi, star stone.
And then there are tiny vessels and glasses blown in solid aventurine by Salviati around 1900. As Aventurine will burn when overheated, blown aventurine is very hard to make. The substance cools in the pot, so the presentation is a solid. By hammering it into shards, these can be rolled into other glass types, provided the working temperature in not too high. It is also turned into thin rods - mainly for making accents and decorations items.
My favourite piece is this 15"/ 28 cms "cadinal's hat" bowl, with shards rolled into a clear base and blown out very thinly so as to maintain transparency. I still have not found out who made it - there is a scripted sig on the onderside that says "Italy" - and it has been suggested it is early Venini. It might well be...