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18 Aug-02:07:36 Re: presentation of new members - reference thread (Pierre Joubert)
17 Aug-22:38:15 Re: collection of joseph d'oliveira (Joseph D'oliveira)
17 Aug-19:37:58 Re: don lum collection (Don Lum)
17 Aug-18:27:45 Re: cleaning with water/ spot cleaning guns (agate?) (Steveb)
17 Aug-18:22:51 Re: cleaning with water/ spot cleaning guns (agate?) (Kushmeja)
17 Aug-18:08:04 Re: cleaning with water/ spot cleaning guns (agate?) (Bob Harman)
17 Aug-18:01:48 The mizunaka collection - quartz (Am Mizunaka)
17 Aug-17:05:48 Cleaning with water/ spot cleaning guns (agate?) (Ceanna)
17 Aug-16:54:08 Re: presentation of new members - reference thread (Don Lum)
17 Aug-16:38:31 Re: presentation of new members - reference thread (Ceanna)
17 Aug-12:46:45 Re: presentation of new members - alex, original from belgium, but recently moved to japan (Tobi)
17 Aug-12:43:23 Re: presentation of new members - alex, original from belgium, but recently moved to japan (Don Lum)
17 Aug-11:59:44 Re: joplin museum complex / the everett j. Ritchie tri-state mineral museum (Robert Seitz)
17 Aug-11:17:38 Re: presentation of new members - alex, original from belgium, but recently moved to japan (Philippe Durand)
17 Aug-08:03:55 Re: presentation of new members - alex, original from belgium, but recently moved to japan (Alex D.)
17 Aug-04:24:34 Re: presentation of new members - alex, original from belgium, but recently moved to japan (Jordi Fabre)
17 Aug-03:24:06 Presentation of new members - alex, original from belgium, but recently moved to japan (Alex D.)
16 Aug-22:25:26 Re: joplin museum complex / the everett j. Ritchie tri-state mineral museum (Robert Seitz)
16 Aug-20:24:50 Re: new zealand alpine minerals? (Greg Lilly)
16 Aug-19:11:05 Re: don lum collection (Don Lum)
16 Aug-17:45:48 The mizunaka collection - quartz (Am Mizunaka)
16 Aug-10:48:30 Re: oddities from brandberg, namibia (Pierre Joubert)
16 Aug-10:33:03 Re: oddities from brandberg, namibia (Jordi Fabre)
16 Aug-10:12:44 Re: oddities from brandberg, namibia (Pierre Joubert)
16 Aug-10:04:03 Re: where is it from? (Don Lum)

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No idea what this is
  
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caza01




Joined: 21 Mar 2017
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PostPosted: Mar 21, 2017 06:40    Post subject: No idea what this is  

I've come across this rock? Wondering what it is.


14900962048392100581140.jpg
 Description:
onyx?
no idea
90mm x60mm
 Viewed:  800 Time(s)

14900962048392100581140.jpg


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vughunter




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PostPosted: Mar 21, 2017 06:45    Post subject: Re: no idea what this is  

Looks like slag to me. A by product of smelting ore.
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John S. White
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PostPosted: Mar 21, 2017 07:46    Post subject: Re: no idea what this is  

Slag glass. Very typical of some types.
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caza01




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PostPosted: Mar 21, 2017 09:51    Post subject: Re: No idea what this is  

Thank you John, so not worth anything then. Much to my disappointment, thought I had found something to make me rich 😂
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