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12 Nov-17:55:54 Re: unstable pyrite (Josele)
12 Nov-17:49:16 Re: unstable pyrite (Sante Celiberti)
12 Nov-16:42:57 Re: apatite related to the appetite of ungulates. (Cascaillou)
12 Nov-16:22:59 Re: unstable pyrite (Cascaillou)
12 Nov-16:15:17 Re: unstable pyrite (Lluis)
12 Nov-16:07:44 Re: unstable pyrite (Bob Morgan)
12 Nov-15:51:39 Re: unstable pyrite (Cascaillou)
12 Nov-15:50:19 Re: unstable pyrite (Carles Millan)
12 Nov-14:46:04 Unstable pyrite (John S. White)
12 Nov-14:20:08 Re: collection of michael shaw (Michael Shaw)
11 Nov-23:40:37 Re: munich show (mineralientage) 2019 (Roger Warin)
11 Nov-16:12:45 Re: new generation for picture - ploum (Ploum)
11 Nov-15:46:05 Re: inclusions of spiral or helical growth and screw dislocations - (0) (Sante Celiberti)
11 Nov-14:34:40 Re: collection of sante celiberti - a mineralogical trip through italy (Sante Celiberti)
11 Nov-14:16:06 Re: faden quartz crystals - (26) (Sante Celiberti)
11 Nov-13:02:27 Re: collection from dany mabillard (Dany Mabillard)
11 Nov-12:06:50 Re: quartz from brazil, where? (Roger Warin)
11 Nov-10:52:00 Re: new generation for picture - ploum (Ploum)
11 Nov-10:19:26 Re: quartz from brazil, where? (Jordi Fabre)
11 Nov-03:54:00 Re: munich show (mineralientage) 2019 (Tobi)
11 Nov-03:19:10 Re: munich show (mineralientage) 2019 (Enrique Llorens)
10 Nov-18:45:27 Re: new generation for picture - ploum (Ploum)
10 Nov-15:41:41 Re: collection of sante celiberti - a mineralogical trip through italy (Sante Celiberti)
10 Nov-14:51:37 The mizunaka collection - quartz (Am Mizunaka)
10 Nov-13:35:51 Re: marble or mica ? id please (Lluis)

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Duane




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PostPosted: Sep 06, 2019 08:29    Post subject: Newbie help please  

Hi. Thank you for any help. I am not a rock collector but have few . I picked this up at thrift store. I believe it is slag glass. But i want to make sure its not a rock.

Btw is slag man made or natural?



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James Catmur
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PostPosted: Sep 06, 2019 09:19    Post subject: Re: Newbie help please  

Man made slag
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Duane




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PostPosted: Sep 06, 2019 09:38    Post subject: Re: Newbie help please  

Thank you kindly for answering . If you dont mind. What are the white veins running through it?
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Duane




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PostPosted: Sep 06, 2019 09:57    Post subject: Re: Newbie help please  

I just managed to break my new toy😑. I did it quite easily with the slightest pressure


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