Button shaped clusters of??

[BridgetownTreasures]

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

 

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[ToddsPoint]

With those little spikes coming out of the one it looks like an urchin. Fossilized urchin? Just a dumb guess! Gary

 

[Lygore]

Looks like thompsonite possibly

 

[Noah_D]

Looks like thompsonite possibly

Here's a picture of Thompsonite... it does look sort of like that.
https://www.fabreminerals.com/search_show.php?SECTION=RSASI&CODE=TQ26L1

 

[DDancer]

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.

 

[BridgetownTreasures]

Isn't Thompsonite also in the Zeolite family?

 

[DDancer]

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.