rocknewb101
fully equipped rock polisher
Member since October 2022
Posts: 1,323
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Post by rocknewb101 on Oct 25, 2023 10:46:04 GMT -5
Just curious if anyone has any thoughts on these. The white/reddish rocks seem to be pretty soft - my saw cut through fairly easily. I'm going to try and tumble the smaller, but haven't had much success ID'ing. Google says they could possibly by a type of rhyolite? I think the black is basalt and the little red might be a type of basalt too, but I'm not sure. Didn't see a single agate, puddingstone or petosky. Thanks!!
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Post by Jugglerguy on Oct 25, 2023 10:57:11 GMT -5
Agates are really hard to find. There are not many, most are really small and if you're not used to looking for them, they're hard to spot. I've been looking for a few years and I'm still not great at spotting them. I'm not sure what most of those are. I don't think there are any Petoskey stones in Lake Superior, they're in Lake Michigan and Lake Huron. I have found puddingstones, but not many. I found one at Crisp Point Lighthouse (I think) and I'm sure I found a couple farther to the east at Point Iroquois Lighthouse. The source is toward the east end of Lake Superior, so that's the most likely place for them to be. Lake Huron is a better place to look for puddingstones.
Here's a video on Lake Superior rock identification done by a couple of geologists. It might give you a clue about what those might possibly be. It's always easier to tell in person, but I'm still not great at identification. I'd guess that some of those are granitoids.
47 Lake Superior Rocks Identified:
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Post by realrockhound on Oct 25, 2023 11:18:55 GMT -5
Randy and TomTom sent you some stones. Probably be on the look out for those.
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rocknewb101
fully equipped rock polisher
Member since October 2022
Posts: 1,323
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Post by rocknewb101 on Oct 25, 2023 12:51:50 GMT -5
Agates are really hard to find. There are not many, most are really small and if you're not used to looking for them, they're hard to spot. I've been looking for a few years and I'm still not great at spotting them. I'm not sure what most of those are. I don't think there are any Petoskey stones in Lake Superior, they're in Lake Michigan and Lake Huron. I have found puddingstones, but not many. I found one at Crisp Point Lighthouse (I think) and I'm sure I found a couple farther to the east at Point Iroquois Lighthouse. The source is toward the east end of Lake Superior, so that's the most likely place for them to be. Lake Huron is a better place to look for puddingstones. Here's a video on Lake Superior rock identification done by a couple of geologists. It might give you a clue about what those might possibly be. It's always easier to tell in person, but I'm still not great at identification. I'd guess that some of those are granitoids. 47 Lake Superior Rocks Identified: oh this is great! Thanks so much, Rob. I will watch it as soon as I get back to my desk I guess I didn't realize petoskys were only Lake MI - good to know. I'm Ohio so definitely closer to there. Maybe another trip is in order
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rocknewb101
fully equipped rock polisher
Member since October 2022
Posts: 1,323
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Post by rocknewb101 on Oct 25, 2023 12:54:40 GMT -5
Randy and TomTom sent you some stones. Probably be on the look out for those. OH! wow, really? To me? That's exciting. Thanks for letting me know. I'll watch for them.
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Post by realrockhound on Oct 25, 2023 12:58:22 GMT -5
Randy and TomTom sent you some stones. Probably be on the look out for those. OH! wow, really? To me? That's exciting. Thanks for letting me know. I'll watch for them. They ain’t Lake Superior agates, but they’ll get the job done. Good mix of tumbling rough and slab for cab pieces.
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rocknewb101
fully equipped rock polisher
Member since October 2022
Posts: 1,323
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Post by rocknewb101 on Oct 25, 2023 13:13:34 GMT -5
OH! wow, really? To me? That's exciting. Thanks for letting me know. I'll watch for them. They ain’t Lake Superior agates, but they’ll get the job done. Good mix of tumbling rough and slab for cab pieces. I am not one to look a gift horse in the mouth . Very appreciative and always excited to receive new things to try. Thank you!!
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Post by realrockhound on Oct 25, 2023 13:39:59 GMT -5
They ain’t Lake Superior agates, but they’ll get the job done. Good mix of tumbling rough and slab for cab pieces. I am not one to look a gift horse in the mouth . Very appreciative and always excited to receive new things to try. Thank you!! Well I don’t know about gift horses mouths or dog faced pony soldiers, but I think you’ll be pleased regardless. Please post results when you get around to working some pieces.
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rocknewb101
fully equipped rock polisher
Member since October 2022
Posts: 1,323
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Post by rocknewb101 on Oct 25, 2023 13:56:09 GMT -5
I am not one to look a gift horse in the mouth . Very appreciative and always excited to receive new things to try. Thank you!! Well I don’t know about gift horses mouths or dog faced pony soldiers, but I think you’ll be pleased regardless. Please post results when you get around to working some pieces. haha!! Thank you - I will for sure.
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Post by Jugglerguy on Oct 26, 2023 10:42:33 GMT -5
I guess I didn't realize petoskys were only Lake MI - good to know. I'm Ohio so definitely closer to there. Maybe another trip is in order Petoskey stones are in Lake Michigan AND Lake Huron.
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