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19 Jul-15:40:28 Re: sainte marie-aux-mines show 2018 (Roger Warin)
18 Jul-16:00:11 The mizunaka collection - quartz (Am Mizunaka)
18 Jul-10:27:54 Re: sainte marie-aux-mines show 2018 (Roger Warin)
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17 Jul-13:38:16 Re: all the diamonds one could fill your house with - and more - so near...yet so far..... (Peter Lemkin)
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17 Jul-10:20:42 Re: sainte marie-aux-mines show 2018 (Roger Warin)
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17 Jul-07:39:08 Re: collection of heimo hellwig (Pierre Joubert)
17 Jul-06:08:55 Re: collection of fiebre verde - chivor (#370) (Fiebre Verde)
17 Jul-05:50:56 All the diamonds one could fill your house with - and more - so near...yet so far..... (Peter Lemkin)
17 Jul-05:48:22 Re: micro photos of inclusions in quartz (Zbhjzm)
17 Jul-02:42:21 Re: collection of heimo hellwig (Heimo Hellwig)
16 Jul-23:53:33 Re: sainte marie-aux-mines show 2018 (Roger Warin)
16 Jul-18:40:03 The mizunaka collection - quartz (Am Mizunaka)
16 Jul-15:23:03 Re: sainte marie-aux-mines show 2018 (Roger Warin)
16 Jul-15:06:41 Re: sainte marie-aux-mines show 2018 (Roger Warin)
16 Jul-14:12:06 Re: collection of bergur e. Sigurdarson (Bergur_e_sigurdarson)
16 Jul-10:53:00 Re: collection of bergur e. Sigurdarson (Fiebre Verde)
16 Jul-10:30:10 Collection of bergur e. Sigurdarson (Bergur_e_sigurdarson)
15 Jul-23:57:13 Re: sainte marie-aux-mines show 2018 (Roger Warin)
15 Jul-16:18:11 Re: sainte marie-aux-mines show 2018 (Roger Warin)
15 Jul-14:55:06 Sainte marie-aux-mines show 2018 / waiting for ste. Marie 2019! (Jordi Fabre)
15 Jul-09:03:39 Re: collection of michael shaw (Crosstimber)
14 Jul-17:32:24 The mizunaka collection - rhodochrosite (Am Mizunaka)

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Please help identify this rock - Thank you
  
  Index -> FOR BEGINNERS: What is it? Where is it from?
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jlggps




Joined: 31 May 2018
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Location: Oregon

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PostPosted: May 31, 2018 03:07    Post subject: Please help identify this rock - Thank you  

Hello,

I have been toting this rock around with me for 20+ years and I believe it is about time I try to get it identified. I traded a piece of native silver for a couple of these and honestly do not recall where they came from. The photos seemed to have captured the color very well (kind of an army jeep green with yellow highlights). They can be scratched with a sharp metal object but they are rather hard rocks. This one weighs ~2.9 oz and is about ~3-inches long. I wish I know more about these as I have forgotten all the geologist had told me (whom I had traded). My son is into rock collecting now and I would like to be able to tell him what it is and if it is safe to handle (I had been toting around a arsenic specimen as well which I know is not safe to handle).

Any assistance is greatly appreciated.

Thank you

John



20161214_174542.jpg
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jlggps




Joined: 31 May 2018
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PostPosted: Jun 01, 2018 20:10    Post subject: Re: Please help identify this rock - Thank you  

Leaverite?
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AntonioL




Joined: 30 May 2018
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Location: Saint Paul, MN

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PostPosted: Jun 04, 2018 09:54    Post subject: Re: Please help identify this rock - Thank you  

Hehe, Leaverite. Good one.

I am a beginner too but I thought I would share my thoughts on this specimen.

My first instinct would be to get a Geiger counter examine the specimen for radioactivity. It looks like a gummite (a rock that has uranium mixed in it).

If that is not the case the only other thing that comes to mind is limonite.
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Riccardo Modanesi




Joined: 07 Nov 2011
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Location: Milano

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PostPosted: Jun 04, 2018 12:46    Post subject: Re: Please help identify this rock - Thank you  

Hi to everybody!
An advice: try with a Geiger machine, in order to reveal the radioactivity of this specimen.
Greetings from Italy by Riccardo.

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Hi! I'm a collector of minerals since 1973 and a gemmologist. On Summer I always visit mines and quarries all over Europe looking for minerals! Ok, there is time to tell you much much more! Greetings from Italy by Riccardo.
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Pete Richards
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PostPosted: Jun 04, 2018 13:17    Post subject: Re: Please help identify this rock - Thank you  

Hello jiggps,

I'm afraid you have not gotten very much help here so far. You also have not given us much information to go on.

Please click on the link named "Asking: What is this? / Where is it from?" in the introductory paragraph for the Beginners section of the Index. The resulting document will tell you many tests you can and should do to provide the kind of data we need to make a guess at your unknown material.

Please have a look at this article and see what you can do!

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Collecting and studying crystals with interesting habits, twinning, and epitaxy
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