You can confirm the material by running a bead under very hot water then immediately sniff the bead. A burned milk smell will come off the Galalith.
A lot of Galalith beaded jewelry was made in France.
Thank you need to test with hot water as you suggest. I did try a hot pin test for "amber" bead on other necklace but struggled to find an unobtrusive area to test.
but can't remember the designer's name. It's on the tip of my tongue though. Maybe someone else can help out. I love the necklace!
I have seen different necklaces with these kind of clasps that are also stamped with 'Made in France'. You can find some examples on Etsy!