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18 Sep-05:25:58 Re: malachite stalactites, katanga province (Jordi Fabre)
18 Sep-05:18:45 Re: malachite stalactites, katanga province (Peter Lemkin)
18 Sep-04:56:09 Malachite stalactites, katanga province (Roger Warin)
17 Sep-09:46:55 Re: tracing the dealer "minerals engineering" or brian petrovic (Tomcotterell)
17 Sep-09:30:37 Re: tracing the dealer "minerals engineering" or brian petrovic (Peter Megaw)
17 Sep-07:57:26 Minfind dot com is back! (Bob Kerr)
17 Sep-07:46:04 Re: sold as “green stilbite” (Alfredo)
17 Sep-07:18:23 Tracing the dealer "minerals engineering" or brian petrovic (Tomcotterell)
17 Sep-06:28:12 Re: sold as “green stilbite” (Charly H)
16 Sep-15:44:40 Re: sold as “green stilbite” (Pete Richards)
16 Sep-10:54:45 Re: sold as “green stilbite” (Charly H)
16 Sep-10:36:43 Re: sold as “green stilbite” (Bergur_e_sigurdarson)
16 Sep-10:12:03 Re: sold as “green stilbite” (Charly H)
16 Sep-05:57:03 Re: sold as “green stilbite” (Charly H)
16 Sep-05:55:13 Re: sold as “green stilbite” (Charly H)
16 Sep-01:26:21 Re: fulgurite (Peter Lemkin)
16 Sep-00:42:43 Re: sold as “green stilbite” (Jordi Fabre)
15 Sep-22:29:50 Re: sold as “green stilbite” (Matt_zukowski)
15 Sep-20:31:13 Re: sold as “green stilbite” (Bergur_e_sigurdarson)
15 Sep-20:14:50 Sold as “green stilbite” (Charly H)
15 Sep-17:02:00 Re: online catalog of the minerals of the igme collections - madrid community (Firmo Espinar)
15 Sep-16:16:11 Re: collection of sante celiberti (Sante Celiberti)
15 Sep-16:03:04 Re: fulgurite (B Glassburn)
15 Sep-09:59:38 Re: fulgurite (Matt_zukowski)
15 Sep-09:56:05 Re: fulgurite (Josele)

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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.
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  Topic: Reminiscences of a Mineralogist by Arthur Montgomery
David K. Joyce

Replies: 2
Views: 1104

PostForum: Mineralogical Literature   Posted: Apr 08, 2021 18:22   Subject: Re: Reminiscences of a Mineralogist by Arthur Montgomery
I concur with John S. White. At the suggestion of John, I started reading Arthur Montgomery's "Reminiscences of a Mineralogist" and quickly read it cover to cover. I'll probably read it agai ...
  Topic: The native gold from Guelmim-Oued Noun, Morocco - (35)
David K. Joyce

Replies: 8
Views: 5087

PostForum: Featured Columns of FMF   Posted: Dec 29, 2020 09:04   Subject: Re: The native gold from Guelmim-Oued Noun, Morocco - (35)
I bow to your knowledge of Moroccan minerals and localities. Still those were very similar specimens (no copper secondaries that I noticed) and people should be aware of it and the possibility that su ...
  Topic: The native gold from Guelmim-Oued Noun, Morocco - (35)
David K. Joyce

Replies: 8
Views: 5087

PostForum: Featured Columns of FMF   Posted: Dec 29, 2020 08:42   Subject: Re: The native gold from Guelmim-Oued Noun, Morocco - (35)
Hi Tomek et al, I guess I’ll never know if it is the exact find but it looks the same. I examined all the specimens closely. All were specimens for sale from Moroccans, during Tucson, 2020. As I said, ...
  Topic: The native gold from Guelmim-Oued Noun, Morocco - (35)
David K. Joyce

Replies: 8
Views: 5087

PostForum: Featured Columns of FMF   Posted: Dec 29, 2020 08:18   Subject: Re: The native gold from Guelmim-Oued Noun, Morocco - (35)
Hello All, I have never had any doubts about the natural nature of the gold crystals from this locality. They are natural and I am glad to see the above detailed analytical work. However, I have seen ...
  Topic: Unusual bar pyrite from Nanisivik
David K. Joyce

Replies: 21
Views: 4623

PostForum: Minerals and Mineralogy   Posted: Oct 29, 2020 17:01   Subject: Re: Unusual bar pyrite from Nanisivik
I'd look forward to seeing them! Thanks, DKJ
  Topic: Unusual bar pyrite from Nanisivik
David K. Joyce

Replies: 21
Views: 4623

PostForum: Minerals and Mineralogy   Posted: Oct 29, 2020 16:43   Subject: Re: Unusual bar pyrite from Nanisivik
I'm sure you have noted that the pyrite crystals at Nanisivik are mostly combinations of various isometric forms which vary in dominance. in figure 29, the cube dominated but you will also see dodecah ...
  Topic: Unusual bar pyrite from Nanisivik
David K. Joyce

Replies: 21
Views: 4623

PostForum: Minerals and Mineralogy   Posted: Oct 29, 2020 15:48   Subject: Re: Unusual bar pyrite from Nanisivik
I was referring to the furthest right pyrite on the right of the specimen. Figure 29, is, in fact, very thick overgrowths on a former pseudomorph. DKJ
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  Topic: Unusual bar pyrite from Nanisivik
David K. Joyce

Replies: 21
Views: 4623

PostForum: Minerals and Mineralogy   Posted: Oct 29, 2020 14:26   Subject: Re: Unusual bar pyrite from Nanisivik
Hello Russ,
The pyrites are usually very bizarre and there are good reasons for it. It is not a simple concept. Thousands of unusual pyrites have come from the Nanisivik Mine.

The initial iron sul ...
  Topic: Minerals toxicity: Where can I find information?
David K. Joyce

Replies: 12
Views: 4676

PostForum: Minerals and Mineralogy   Posted: Oct 13, 2020 09:17   Subject: Re: Minerals toxicity: Where can I find information?
Hi Olivier, The article Jordi linked you to is a very good summary. I don't know how worried you are about this but, practically speaking, there is not much to worry about. I have been collecting min ...
  Topic: Help me identify this I keep finding during metal detecting please.
David K. Joyce

Replies: 10
Views: 3644

PostForum: What is it? - Where is it from?   Posted: Sep 19, 2020 13:08   Subject: Re: Help me identify this I keep finding during metal detecting please.
If that piece of quartz is setting the metal detector off, there must be something conductive inside it. I suggest hitting it with a hammer to break it and see if there is gold, pyrrhotite or some oth ...
  Topic: The MIM Museum in Beirut, Lebanon
David K. Joyce

Replies: 212
Views: 336068

PostForum: MIM Museum (Beirut, Lebanon)   Posted: Aug 05, 2020 16:08   Subject: Re: The MIM Museum in Beirut, Lebanon
Such a terrible event in Lebanon. To compare it with an earthquake is really misleading, though. I have no doubt that there was an earthquake equivalent of 3.3-4.0 or so. This would only account for s ...
  Topic: When can a fossil be also considered a mineral?
David K. Joyce

Replies: 50
Views: 66806

PostForum: The Ten Thousand Club   Posted: Apr 20, 2020 08:02   Subject: Re: When can a fossil be also considered a mineral?
Here is a mineral specimen disguised as a fossil. A gastropod, I think. It is as thin as an eggshell and totally composed of tiny calcite or dolomite crystals.
  Topic: A potpourri of musings....barely related to minerals.
David K. Joyce

Replies: 8
Views: 6632

PostForum: Off-Topic and Introductions   Posted: Jun 13, 2019 09:01   Subject: Re: A potpourri of musings....barely related to minerals.
The upside of collecting at a roadcut on the moon, amongst falling rocks, is that falling rocks of a size that would kill or seriously injure you here on Earth, would just glance off of your shoulder ...
  Topic: Are there any Sicilian Sulphur fakes still around?
David K. Joyce

Replies: 12
Views: 15196

PostForum: Incorrect classification and fakes   Posted: May 20, 2019 12:34   Subject: Re: Are there any Sicilian Sulphur fakes still around?
Personally, I will always be vigilant when examining Sicilian sulphur specimens. There were many created. I'm sure many still exist in private collections and will eventually re-enter the market . DKJ
  Topic: Collection of Firmo Espinar
David K. Joyce

Replies: 493
Views: 253633

PostForum: Collection photos and Collector's page   Posted: Dec 16, 2018 12:33   Subject: Re: Franjungle Collection
Are these opals fluorescent?
David KJ
 
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