For future reference, the spire was crystalline star metal.
Exact properties are yet undefined.
DM leanings are that it is manacite that is formed in a star and has properties that make it conducive to spelljamming. Mostly used in spelljamming helms.
confirmed - he’s here again and i’m getting more middle-aged asian pole dancers !!! mebbe if he spends a few more days in town, they’ll show up in person 😜