RedHills
Self Banned after losing a Noles bet.
All I know it's from the Great Lakes area.
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What a cool rock! Its hard.
- Thread starter RedHills
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fishfryer
frying fish driveler
There are some agates around Lake Superior that are famous,that doesn't look much like agate though. Looks sedimentary almost. Is it really hard like quartz?
RedHills
Self Banned after losing a Noles bet.
Yes
fishfryer
frying fish driveler
Beautiful rock,you might try and contact a gem and mineral club in your area and let someone eyeball it for you.
believer
Senior Member
Looks a lot like the stuff you see in the Four Corners area out west. Very cool
gunnurse
Senior Member
Meteor from the strike that formed the Carolina Basin. It could be dangerous to hold. I volunteer to take the risk for you. I’ll take it, and you don’t even have to pay me to do it.
Mr Bya Lungshot
BANNED LUNATIC FRINGE
That’s Hot
Lukikus2
Senior Member
Really? That would be cool.
Artfuldodger
Senior Member
Looks like a type of banded chert. Maybe Jasper, banded iron chert, Hematite chert.
RedHills
Self Banned after losing a Noles bet.
It would make a cool knife blade. Definitely think it's hard enough. Wish I could cut it but my tile saw is too small. Rocks about 4" at its widest point
Petoskey stones are famous,,,,this isn't one,,,,
RedHills
Self Banned after losing a Noles bet.
Don't think so.
longbowdave1
Senior Member
Post a picture of the rock in the primative sub forum. They will know what it is.
fishfryer
frying fish driveler
I spent a week with a Navy buddy and his family near Munising in '72 I was given a few small agates during that visit. I think I killed a Ruffed Grouse on that trip,me and my friend shot at the same time,anyway. I took it and some first class blueberries home in an awol bag,frozen of course. That is beautiful country in October,can't say about January,don't want to find out.
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Artfuldodger
Senior Member
Lake Superior is also famous for it's agates, as Fishfryer mentioned. Keep in mind though a lot of what one person call an agate isn't an agate. Here is an agate from Lake Superior;
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Artfuldodger
Senior Member
Agate is a translucent to semitransparent chalcedony but not all chalcedony is an Agate. This page show some agates and agate cousins;
https://www.superiortrails.com/rock-hound3.html
https://www.superiortrails.com/rock-hound3.html
Artfuldodger
Senior Member
Sandstone is defined as a rock which is composed of sand-sized grains of various minerals mostly of uniform size and often are smooth and rounded. Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture.
So RedHills rock may be sedimentary but it's not sandstone like in the pic you posted. Since RedHills rock is opaque, we know it's not Chalcedony. It is waxy looking enough to be Chert.
If chert is dark some call it flint. Others say flint has to be dark. Jasper does not have a consistent meaning to different users of the term, and therefore it has no real scientific value. Jasper is usually just red chert.
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RedHills
Self Banned after losing a Noles bet.
Think Stan is half right and I was half wrong. After some reading, I didnt realize the flints and cherts are considered sedimentary. I was focused on the sandstone element you mentioned.
