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26 May-17:50:46 The mizunaka collection - quartz with fluorite and ferberite (Am Mizunaka)
26 May-16:25:31 Re: a mineralogical trip through the regions of the uk - england / cumbria (Colin Robinson)
26 May-16:16:04 Re: a mineralogical trip through the regions of the uk - england / county durham (Colin Robinson)
26 May-12:48:09 Re: the collection of pierre and riana joubert (Pierre Joubert)
26 May-11:37:14 Re: collection of michael shaw - viburnum trend (Crosstimber)
26 May-10:57:45 Re: vivianite oxidation (Evin Likes Rocks)
26 May-10:53:19 Re: quartz inclusions (Cascaillou)
26 May-05:31:12 Re: collection of enrique llorens (Enrique Llorens)
26 May-02:51:27 Re: vivianite oxidation (Alfredo)
26 May-02:23:47 Vivianite oxidation (Evin Likes Rocks)
26 May-01:50:40 Re: collection of heimo hellwig (Heimo Hellwig)
25 May-20:07:08 The mizunaka collection - quartz with fluorite (Am Mizunaka)
25 May-15:33:49 Re: i am curious to know what camera you are using... (Texasdigger)
25 May-13:33:16 Re: quartz inclusions (Cascaillou)
25 May-11:30:22 Re: collection of manuel mesa (Manuel Mesa)
25 May-05:01:40 Re: [not very] desperate to find out what this is (James)
25 May-03:23:43 Re: desperate to find out what this is (Matt_zukowski)
25 May-03:10:56 Re: hallelujah junction, near reno, nevada. Spann adventure (Pierre Joubert)
24 May-22:48:35 The mizunaka collection - hackmanite (Am Mizunaka)
24 May-20:34:31 Re: a mineralogical trip through the regions of the uk - england / county durham (Jesse Fisher)
24 May-17:37:11 Re: desperate to find out what this is (Bob Carnein)
24 May-16:26:59 Re: a mineralogical trip through the regions of the uk - england / county durham (Colin Robinson)
24 May-16:08:37 Re: a mineralogical trip through the regions of the uk - england / cumbria (Colin Robinson)
24 May-16:04:01 Re: a mineralogical trip through the regions of the uk - england / cumbria (Colin Robinson)
24 May-15:57:35 Re: a mineralogical trip through the regions of the uk - england / cumbria (Colin Robinson)

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The time now is May 26, 2017 19:33

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B.agee515




Joined: 22 Apr 2017
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PostPosted: Apr 22, 2017 10:47    Post subject: Need some help  

A local shop has this in the counter. I'd like to buy it but they have no idea what it is. I've never seen anything like it.


20170421_172530.jpg
 Mineral: Dont know
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 Viewed:  624 Time(s)

20170421_172530.jpg


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Josele




Joined: 10 Apr 2012
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Location: Tarifa, Cádiz


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PostPosted: Apr 22, 2017 14:08    Post subject: Re: Need some help  

To me, it looks like something anthropogenic, maybe a kind of slag or silicon carbide.
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crosstimber
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Joined: 30 Apr 2008
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PostPosted: Apr 22, 2017 14:45    Post subject: Re: Need some help  

I agree - it's manmade.
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texasdigger




Joined: 22 Oct 2015
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PostPosted: Apr 26, 2017 01:23    Post subject: Re: Need some help  

At first glance looks similar to Kyanite but it is lacking definition and any real structure. I agree its man made. It looks a lot like the slag off my metal chop saw. Basically small grains fuse at high temperatures and build up under the saw after prolonged use.


Kyanite Black.jpg
 Mineral: Kyanite
 Description:
Black Kyanite Fan
 Viewed:  354 Time(s)

Kyanite Black.jpg



chopsaw slag.jpg
 Mineral: Chopsaw slag
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chopsaw slag.jpg


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