Wooferhound
Cave Dweller
Lortone QT66 and 3A
Member since December 2016
Posts: 1,423
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Post by Wooferhound on Oct 9, 2017 20:25:04 GMT -5
We go hounding in the Flint River here in North Alabama even though there are not great rocks in there, but it's about as good as it gfets around here. forum.rocktumblinghobby.com/thread/80484/canoeing-rockhounding-flint-river-alabama?page=1&scrollTo=957626The best stuff looks like Flint mixed with some Limestone, it looks very layered but has a lot of fractures in it. Been trying to tumble it with mixed results. It chips a lot and big pieces become small trying to grind into rounded stones. I keep hoping for a surprising piece to come out of it but it's slim pickin's. Here are some examples from two different batches.
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tkvancil
fully equipped rock polisher
Member since September 2011
Posts: 1,546
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Post by tkvancil on Oct 10, 2017 9:06:09 GMT -5
My local rocks (Illinois) are kinda like that. Nothing special but all you can get 'round here. Still looking for that "gem" myself.
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Wooferhound
Cave Dweller
Lortone QT66 and 3A
Member since December 2016
Posts: 1,423
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Post by Wooferhound on Jan 22, 2018 14:46:55 GMT -5
Here is another batch of rocks from my Flint River canoe trips. These had a fair shine but this type of stone will breakup in the tumbler and probably carries grit forward in the cracks preventing a super shine. Plus the photos were taken on a heavy overcast rainy day so there are not any lights to reflect. Close Up of the best ones It would be nice to try and get an identification of these rocks. I want to call them Flint cause they are a bit glassy, but they crumble too easily. Here are some of my best Rough examples. Fossils are common in these kinds of rocks, usually in layers. The rock on the left has been in Course Grind for 2 weeks and the rock on the right is rough but cleaned. Here are some closeups of the normal ones that have been all the way through the polish stage. Not the most exciting rock but easy to find here and interesting for the cracks themselfs. This stuff is real hard and will spend 4-5 weeks in course grind.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Jan 23, 2018 3:43:14 GMT -5
May be chert woofer. Lots of that in NW Georgia and Ft Payne Alabama area.
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Wooferhound
Cave Dweller
Lortone QT66 and 3A
Member since December 2016
Posts: 1,423
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Post by Wooferhound on Jan 23, 2018 10:00:30 GMT -5
Yes this would be the same rock that would be found in Fort Payne. I think you had identified it as chert a year ago when I first started Tumbling, Was just making sure with some better pictures. It looks great while rough but almost never looks good tumble polished.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,154
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Post by jamesp on Jan 23, 2018 20:16:27 GMT -5
Yes this would be the same rock that would be found in Fort Payne. I think you had identified it as chert a year ago when I first started Tumbling, Was just making sure with some better pictures. It looks great while rough but almost never looks good tumble polished. I tumbled S Georgia coral for years. Learned a great deal about optimizing tumbling and breaking rock with a hammer. Because I did not have to buy it and there were tons of it I could run many batches and practice.
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