Septarian nodules Options

[johnnybravo300]

I just identified these strange big rocks that look like cracked petrified mud balls as what they are. Petrified cracked mud balls haha. Forestry popped a few rocks out near my petrified wood spot to block off a trail and I thought one looked like a big turtle shell but when I flipped it over I could see the calcite crystals. I haven't looked into it until now and then I saw mikes video and some others. I've never seen them before but very cool.
I only knew of the one on top of the ground that I could find and be able to move so I went out there and broke it up to see. There's no way I could dig one up out of the frozen ground now.
The hill behind my snowmobile in those pics is full of them that I found last summer but I haven't dug any yet. There were turtle heads all over just barely poking through but I didn't really know what it was.
It seemed much heavier than other rocks it's size. They aren't decomposed at all and I really had to beat it to break it. Hope these pics turn out.

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