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Post by chris1956 on Mar 10, 2024 19:01:01 GMT -5
Here is a slab from a rock I found in Michigan. I think this came from Lake Michigan, probably in the Petoskey area. I think the red portion of the rock may be jasper (it bled like a lot of red jasper does). Not sure what the portion between the bands is on the top portion of the rock. Looks like it could be some sort of quartzite (looks like small particles). I would say the color is a little more red in person and somewhat darker. Anyway, I like the patterns in the stone. Not sure how it will polish. Will post pics once I do something with it. Thanks for looking, Chris
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Post by chris1956 on Mar 17, 2024 21:17:18 GMT -5
I put the end cut from this rock in the Lot-O. So it started at 220 and went through polish. I may throw it in the rotary to see how it does. The green stuff undercut some or it is pitted. Almost looks like quartzite the way it got fuzzy on the edges. Nice patterns for a beach find.
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realrockhound
Cave Dweller
Chucking leaverite at tweekers
Member since June 2020
Posts: 4,495
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Post by realrockhound on Mar 17, 2024 21:29:47 GMT -5
Id say sedimentary.
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