monna0000
starting to spend too much on rocks
Member since May 2016
Posts: 243
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Post by monna0000 on Oct 3, 2016 14:20:37 GMT -5
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Post by 123sitnwrap on Oct 12, 2016 9:12:57 GMT -5
I think you might have better luck with the finer more compact grained granite.
Also want to say thanks for posting as you pic of the phorphyr finally put an id on a rock I have that I couldn't figure what it was.
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Shannon
starting to spend too much on rocks
Member since July 2015
Posts: 145
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Post by Shannon on Oct 12, 2016 10:15:29 GMT -5
The softer purple spots in that one spot are garnet! And when you said calcite did you mean quartzite? Really cool material you found. I really like the unakite and flint
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Post by rockjunquie on Oct 13, 2016 17:58:10 GMT -5
Very nice collection. A good variety. It's nice to see things from other parts of the world.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,685
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Post by Fossilman on Oct 13, 2016 19:46:56 GMT -5
Great finds........... I tumble granit,it usually comes out pretty good,without cracking...
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monna0000
starting to spend too much on rocks
Member since May 2016
Posts: 243
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Post by monna0000 on Oct 13, 2016 20:11:59 GMT -5
The softer purple spots in that one spot are garnet! And when you said calcite did you mean quartzite? Really cool material you found. I really like the unakite and flint Thanks for the hint on garnet. Will Google it😄 The calcite are for sure calcite also called Silkespat on Danish. It is easy to ID and we have a lot of it due to all the chalk in the ground. Read about quartzite and I'm almost 99% sure it's not the same. Not sure but Think that Silkespat could be a varient of calcite but out of the calcite family. Can't find any translation for Silkespat.
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monna0000
starting to spend too much on rocks
Member since May 2016
Posts: 243
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Post by monna0000 on Oct 13, 2016 20:18:51 GMT -5
Great finds........... I tumble granit,it usually comes out pretty good,without cracking... Really no way of tumbling my Danish granite. Even cabbing it is hard. I'm not ready to quit my granite jet but some days i'm wondering if would be better to leave in the garden😜
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metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
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Post by metalsmith on Oct 14, 2016 12:51:04 GMT -5
Try tumbling your granite in a thickened slurry to take the impact out of the tumbles. Alternatively use a soft material such as walnut shells to carry the polish and more than half-fill the container.
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metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
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Post by metalsmith on Oct 14, 2016 12:52:41 GMT -5
Sorry, but I'm not convinced your Danish Pudding stone isn't sea-tumbled concrete! Are you sure it is naturally occurring rock (strictly speaking concrete is rock - there was a piece in my geology degree exams many years ago).
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monna0000
starting to spend too much on rocks
Member since May 2016
Posts: 243
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Post by monna0000 on Oct 14, 2016 16:32:42 GMT -5
Sorry, but I'm not convinced your Danish Pudding stone isn't sea-tumbled concrete! Are you sure it is naturally occurring rock (strictly speaking concrete is rock - there was a piece in my geology degree exams many years ago). It's ok and I think you are absolutely right, I also think it's concrete. The littel pieces in the concrete are small flint and I can't imagne how that would happen in nature. But I'm still going to try and cab it😆
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ubermenehune
spending too much on rocks
Member since March 2016
Posts: 293
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Post by ubermenehune on Oct 25, 2016 21:45:58 GMT -5
Looks more like conglomerate to me. I've never seen concrete composed with stones that large.
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Post by Peruano on Oct 26, 2016 7:27:29 GMT -5
As someone who enjoys the variety of beach cobble, I like them all. However your flint holds great potential if you get lucky or creative when you cut or cab it. Sometimes a slight color variant or incorporating the rind into the cab can make it jump out at you and make an exquisite piece. Enjoy.
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monna0000
starting to spend too much on rocks
Member since May 2016
Posts: 243
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Post by monna0000 on Oct 26, 2016 12:26:13 GMT -5
As someone who enjoys the variety of beach cobble, I like them all. However your flint holds great potential if you get lucky or creative when you cut or cab it. Sometimes a slight color variant or incorporating the rind into the cab can make it jump out at you and make an exquisite piece. Enjoy. Makes me wanna go cut some flint right now wich is a bad idea as it is nighttime here in Dk right now😄
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metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
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Post by metalsmith on Oct 26, 2016 15:33:52 GMT -5
Looks more like conglomerate to me. I've never seen concrete composed with stones that large. It would be typical of concrete used in coastal settings i.e. beach / sea defences especially where flint would be plentiful locally in order to reduce the cost / transport effort and there would certainly be no reduction in strength with flint embedded!
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