šŸ”Ž UNIDENTIFIED Porphyry Hunt

ToddsPoint

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Todds Point, IL
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Metal Detecting
I spotted a big porphyry rock about a dozen yrs ago along the river. I couldn’t hardly lift it and never bothered to try and get it. After telling a friend about it, he volunteered to help me get it and brought a 2 wheel cart. It was a beautiful day at the river. The river has sorted the rocks by size. Bigger rocks are higher up in the brush. This is all glacial till from Canada.
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I thought I could walk right up to the rock but I couldn’t find it. After walking by it several times I finally spotted it. The river had been up and added a layer of crud to the surface of the rock. When I flipped it over I was sure. I’m guessing it weighed 50 lbs.
IMG_8788.webp
IMG_8789.webp


We hauled it home and put it right on the rock saw. It just barely fit in my 16ā€ saw.
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This is rhomb porphyry. Worldwide, it’s fairly rare. I’m just lucky enough to live where the glacier brought some of it down from Canada. This porphyry is about 2 bil yrs old. I’ll carve it into some Indian style pipes and whatever else I decide to make.
 

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