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18 Feb-17:30:10 #mvm (minerals - virtual museum) collection - sphalerite from malaespera mine, bilbao (Jordi Fabre)
18 Feb-16:51:03 Re: #mvm (minerals - virtual museum) collection (Jordi Fabre)
18 Feb-14:55:56 Re: #mvm (minerals - virtual museum) collection (Jordi Fabre)
18 Feb-11:11:15 Re: collection of michael shaw (Michael Shaw)
18 Feb-10:54:18 Re: radiating quartz with ring of amethyst (Howard Heitner)
18 Feb-08:56:07 Re: radiating quartz with ring of amethyst (Herwig)
18 Feb-05:28:29 Re: radiating quartz with ring of amethyst (James Catmur)
18 Feb-04:43:48 #mvm (minerals - virtual museum) collection - sphalerite after enargite from tsumeb (Jordi Fabre)
17 Feb-18:12:07 #mvm (minerals - virtual museum) collection (Jordi Fabre)
17 Feb-15:18:51 Re: radiating quartz with ring of amethyst (Howard Heitner)
17 Feb-11:52:05 Re: radiating quartz with ring of amethyst (James Catmur)
17 Feb-09:34:34 Re: radiating quartz with ring of amethyst (Howard Heitner)
17 Feb-08:26:43 Re: the mim museum in beirut, lebanon (Mim Museum)
17 Feb-06:02:58 Re: radiating quartz with ring of amethyst (James Catmur)
16 Feb-20:04:26 Radiating quartz with ring of amethyst (Howard Heitner)
16 Feb-13:30:12 New book: minerals of britain and ireland 2009-2024 (Jordi Fabre)
16 Feb-05:39:41 Re: collection of volkmar stingl (Volkmar Stingl)
15 Feb-15:17:13 Re: collection of michael shaw (Michael Shaw)
14 Feb-07:19:19 Re: it's tucson time again - 2025 (Herwig)
14 Feb-03:49:09 Re: it's tucson time again - 2025 (Jordi Fabre)
13 Feb-23:27:23 Re: it's tucson time again - 2025 (Bob Kerr)
13 Feb-23:24:09 Re: it's tucson time again - 2025 (Bob Kerr)
13 Feb-23:08:20 Re: it's tucson time again - 2025 (Bob Kerr)
13 Feb-22:58:38 Re: it's tucson time again - 2025 (Bob Kerr)
13 Feb-22:48:52 Re: it's tucson time again - 2025 (Bob Kerr)

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The information provided within this Forum about localities is only given to allow reference to them. Any visit to any of the localities requires you to obtain full permission and relevant information prior to your visit. FMF is strictly against any illicit activities related to collecting minerals.
Greetings from Czech Republic
  
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stoner




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PostPosted: Dec 13, 2024 16:10    Post subject: Greetings from Czech Republic  

The popular name "sluňák" is used for a specific type of quartzite, which is evidence of intense weathering processes during the Tertiary period. These processes took place under a warm and humid climate typical of tropical regions. During this time, not only was there mechanical disruption of rocks, but also their chemical breakdown. This process released large amounts of silicon dioxide, which silicified surface sediments, particularly sands and sandstones. As a result, a solid surface crust formed, from which today, in various locations across our country, we find polished fragments known as "sluňáky."
Here is Geovlog from our czech locality :-) https://www.youtube.com/watch?v=AE9GMV1xOoI



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stoner




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PostPosted: Dec 13, 2024 16:14    Post subject: Re: Greetings from Czech Republic  

next one


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Bob Carnein




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PostPosted: Dec 13, 2024 17:34    Post subject: Re: Greetings from Czech Republic  

It looks good enough to eat!
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stoner




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PostPosted: Dec 14, 2024 17:31    Post subject: Re: Greetings from Czech Republic  

Thank you :-)
Bob Carnein wrote:
It looks good enough to eat!
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