Re: OT - Gluing glass
TomD
UV cures like Solarez can be purchased from amazon and fly tying stores. They use a UV flashlight to "instantly" cure the glue. Remarkable stuff that I would love to try, but the cost can be high (not for a little project, but they build whole bodies of lures of the stuff). It looks great in the vise but presumably all that clear glue disappears from view in the water. In theory the stuff should cure in sunlight but you need a really hard set up and apparently you need a light for that, or if you want hard in a decent period of time. Another group that uses this stuff are people who paint nails.
I suspect it would not work, but hide glue is so strong there is an art form where they paint it on glass and when it contracts/hardens it pops out chips in the glass. That is the 300 series hide glue. The wood stuff is in the 100 range and will not chip glass, but would it glue it?
Another theoretical option is to contact a someone in the area who does lampwork. These guys make stuff by melting glass in their lamp. You might be able to weld the part back on depending on dimensions and so forth.