yooper69
Elite Member
found while out detecting a few years ago. it was to neat not to carry it a mile back to the truck.
Please help indentify this rock.
- Thread starter yooper69
- Start date
found while out detecting a few years ago. it was to neat not to carry it a mile back to the truck.
yooper69
Elite Member
I had it cut and it was extremely hard to cut .
Appears to be some type of silica cemented folded mudstone/siltstone. Where was it recovered....what geographic region of the country? What country?
SoOregonMd
Elite Member
psst... Kingdom.
yooper69
Elite Member
Upper Peninsula of Michigan
CoffinCat
Full Member
I have no clue, but it would make a nice pattern on a bowling ball. What does the inside look like ?
yooper69
Elite Member
Same as the outside. Had just an end cut so it would sit flat.
hoser
Forum Supporter
Very cool yooper. Well done.
flyguy784
Elite Member
Your description, "hard to cut" isn't very quantitative. My gut feel says it's Limestone, probably from Canada. The way it's "rounded" and smooth, probably brought in by glaciation. Maybe even marble, which is Limestone that's been metamorphosed. Bet you could get it ID'd just taking it to a stone supplier. Somewhere that they sell various raw stone for garden wall construction etc.
yooper69
Elite Member
I have taken it to a few places and no one can tell me for sure what it is . A few guesses. 2 of the places sell and deal with minerals and gem specimen's.
flyguy784
Elite Member
Next stop, University Geology Dept.
flyguy784
Elite Member
Do this test. Take a knife, file etc. scratch the piece so you get a little pile of rock dust accumulated on the rock. Put a couple drops of acid (even vinegar is sometimes strong enough). If its Limestone it'll "fizz" bubble etc.
flyguy784
Elite Member
That's a very good call. Very well could be gneiss with all that banding.
Lawnwalker15
Senior Member
It looks like the "tiger stripe" camo fatigues my dad brought back from Vietnam..... whatever it is, it's really cool!
Mud-puppy
Forum Supporter
I have one of those! both it and the large red granite one came from Southern Wisconsin...yes, its heavy...The Wife sees a 'cool' rock out in the Wild and she has me haul it home...All around the country I have been hauling 'cool' rocks for 40yrs! Even when we move, she makes me take the rocks along! They are fun to stack up...then they fall down, then you restack them, so its an ever changing piece of art...
We had a Garage/Moving sale last year, and some Lady pulled in, said she drives by our house every day from work and enjoys seeing the rock stack, says its the highlight of her day.
.....so guess what? She BOUGHT the whole stack for $700! The last time I had to lift those rocks was getting them into the back of her truck! Now, when me and the Wife are out, we sometimes drive past her place to see 'our' rocks! Finally! I dont have to haul around heavy rocks anymore! I aint never seen a nickel of that money though...Wife said they were 'Her' rocks!
I've been showing Her your pictures of Big Copper...Her eyes take on a wild look, "Boy! Now THAT would make for a cool rock stack!"...so...I might have just freaked myself once again!
I suppose a fellow could solder large chunks of copper together so a guy only has to stack them once though! So theres that...Attachments
T-Man
Elite Member
Agree with flyguy. Bring it over to MI Tech, they have a heck of a geology dept and museum in the place. I'm sure someone there could identify it.
Beach Bum
Elite Member
looks like a black and green rock to me. Glad I could help
