u/CokeZeroSix

Hello! Long time lurker first time poster.

I was hoping to find out more about the material these bangles I got at a yard sale. 4 bangles in total, they’re somewhat heavy, 70-80ish grams per bangle.

The red one (pic3) and the circle dotted (pic6) one has this cross pattern on it (harder to see on the circle dotted one).

Any help would be greatly appreciated!