Found those while hiking at Mount Pisgah, OR near Springfield.

[Zakharius]

Hello dear forum members!
This is my first post here. We found these crystals at Mount Pisgah with my son, right on the trail near summit. Google Photos identified it as Durite... personally have no clue. Any ideas from local Oregon hunters?
Thanks!

 

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[blauer]

Rocks/Gems

 

[Indian Steve]

Cool rocks. Repost in the Rock and Gem Forum for better info.

 

[TheCannonballGuy]

Definitely broken-open Calcite crystallization. I saw it in busted Stalagmites when I was a spelunker (cave-explorer) in college.