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30 May-06:32:55 Re: collection of manuel mesa (Manuel Mesa)
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29 May-22:34:05 The mizunaka collection - fluorite with quartz (Am Mizunaka)
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29 May-18:27:19 Re: possible prehistoric flint knapping tool? (Steveb)
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29 May-18:06:25 Possible prehistoric flint knapping tool? (Jarvouk)
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29 May-14:19:20 Re: cornish chalcocite but from where? (Jfc035)
29 May-11:20:46 Re: collection of manuel mesa (Manuel Mesa)
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29 May-08:47:20 Re: twenty basic minerals (Peter Lemkin)
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29 May-08:08:54 Re: twenty basic minerals (Tom Mazanec)
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28 May-23:57:45 The mizunaka collection - calcite (Am Mizunaka)
28 May-23:49:10 Re: twenty basic minerals (Steveb)
28 May-16:54:20 Re: a mineralogical trip through the regions of the uk - england / cumbria (Jordi Fabre)
28 May-16:20:45 Re: a mineralogical trip through the regions of the uk - england / cumbria (Colin Robinson)
28 May-14:29:16 Re: collection of tobi (Pierre Joubert)
28 May-14:20:11 Re: cornish chalcocite but from where? (Gneissware)
28 May-13:16:23 Re: a mineralogical trip through the regions of the uk - england / cumbria (Jordi Fabre)
28 May-10:28:46 Re: twenty basic minerals (Gneissware)
28 May-10:09:14 Re: collection of tobi (Gneissware)

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What is this????
  
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Rockster




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PostPosted: Feb 15, 2017 06:00    Post subject: What is this????  

Found in Scandinavia in a gravel pit

Picture of cut and uncut

Marcasite?
iron concretions?
hematite?
do you know what it is please post



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Rockster




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PostPosted: Feb 15, 2017 06:04    Post subject: Re: What is this????  

The other half uncut hevy iron rich


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Rockster




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PostPosted: Feb 15, 2017 06:07    Post subject: Re: What is this????  

full picture bad quality phone photos


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Tobi




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PostPosted: Feb 15, 2017 11:38    Post subject: Re: What is this????  

Rockster wrote:
Marcasite?
iron concretions?
hematite?
Most likely some kind of concretion or rock and rather not an iron mineral like marcasite or hematite.
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