Sorry that I do not know the origin of this cool piece. But I figured it’s distinctive enough that I’d get some info, or at least just share this with everyone!
Stay safe!
Joe
Your specimen looks like two specimens of the Zeolite family, Mordenite and Heulandite. Fresh specimens often have subtle coloration but that can weather out a bit.
Yes it is. It could be either Tompsonite or Mordenite, all I can do is go by the image's unfortunately. Tompsonite does not appear to be as radiant as Mordenite nor does it tend to share space with other zeolites. What I see is very similar to material I collected as a kid in Colorado. There are many varieties of zeolite I found out back then.