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A general guide for using the Forum with some rules and tips
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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| Search found 1202 matches |
| Author | Message |
|---|---|
 Topic: Kimberlite and Diamond? |
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| James Catmur Replies: 7 Views: 732 |
 Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Apr 06, 2024 08:23 Subject: Re: Kimberlite and Diamond? |
| Test the hardness of the crystal, test 8
https://www.mineral-forum.com/message-board/viewtopic.php?p=19487#19487 |
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| Topic: The new issue of Mineral Up is now available! |
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| James Catmur Replies: 4 Views: 40808 |
Forum: Mineral Up Editions Posted: Mar 31, 2024 06:27 Subject: Re: The new issue of Mineral Up is now available! |
| How does one obtain copies of the magazine? | |
| Topic: Identification question |
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| James Catmur Replies: 4 Views: 462 |
Forum: What is it? - Where is it from? Posted: Mar 29, 2024 06:20 Subject: Re: Identification question |
| Jim
Is there any way you could do a few basic tests? Streak and hardness James |
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| Topic: Jim’s Mineral Collection |
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| James Catmur Replies: 18 Views: 10619 |
Forum: Micros & Macros - Images of Minerals Posted: Mar 21, 2024 04:11 Subject: Re: Jim’s Mineral Collection |
| I learnt about the 'plain white background' on MinDat.
The ideal, I think, is that the background must have no pattern so the camera does not focus on the background. I have used black myself, b ... |
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| Topic: Jim’s Mineral Collection |
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| James Catmur Replies: 18 Views: 10619 |
Forum: Micros & Macros - Images of Minerals Posted: Mar 20, 2024 04:52 Subject: Re: Jim’s Mineral Collection |
| You are best taking photos of specimens on plain white backgrounds - that way the camera focuses on the specimen not the background. The first photo is a nice one of the background, but the specimen ... | |
| Topic: Jim’s Mineral Collection |
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| James Catmur Replies: 18 Views: 10619 |
Forum: Micros & Macros - Images of Minerals Posted: Mar 20, 2024 04:26 Subject: Re: Jim’s Mineral Collection |
| Jim
You can add multiple photos to a single post, have a read of this to find out how https://www.mineral-forum.com/message-board/viewtopic.php?p=19493#19493 James |
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| Topic: Green seam. Looks like it in a state of decay. |
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| James Catmur Replies: 6 Views: 757 |
Forum: What is it? - Where is it from? Posted: Mar 19, 2024 08:54 Subject: Re: Green seam. Looks like it in a state of decay. |
| You would need to test the rocks from the vein for minerals | |
| Topic: Trying to find information on rose/pink quartz and tourmaline associations. |
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| James Catmur Replies: 17 Views: 2142 |
Forum: Minerals and Mineralogy Posted: Mar 05, 2024 02:41 Subject: Re: Trying to find information on rose/pink quartz and tourmaline associations. |
| What is the locality? We can add it to the photos
Ok, tracked down the provenance of this a bit through about 4 hands to me from source. |
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| Topic: Cinnabar Locality in Transylvania (Romania) |
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| James Catmur Replies: 7 Views: 1324 |
Forum: What is it? - Where is it from? Posted: Mar 03, 2024 07:07 Subject: Re: Cinnabar Locality in Transylvania (Romania) |
| I think you have to label it as 'locality unclear'. You cannot move it to some known locality without confirmation that such a move is almost certainly correct
what protocols are recommended for p ... |
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| Topic: How do calcium carbonate Vaterite and Calcite crystals form? |
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| James Catmur Replies: 0 Views: 341 |
Forum: Minerals and Mineralogy Posted: Mar 02, 2024 13:25 Subject: How do calcium carbonate Vaterite and Calcite crystals form? |
| "Calcite and vaterite crystallisation is strongly influenced by the presence of additives during the reaction process, as demonstrated by organic molecules in biogenic calcium carbonate formation ... | |
| Topic: Trying to find information on rose/pink quartz and tourmaline associations. |
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| James Catmur Replies: 17 Views: 2142 |
Forum: Minerals and Mineralogy Posted: Feb 29, 2024 08:34 Subject: Re: Trying to find information on rose/pink quartz and tourmaline associations. |
| Try looking at this page as it gives numerous 'rose quartz' localities
https://www.gemdat.org/gem-3456.html (link normalized by FMF) |
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| Topic: Trying to find information on rose/pink quartz and tourmaline associations. |
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| James Catmur Replies: 17 Views: 2142 |
Forum: Minerals and Mineralogy Posted: Feb 29, 2024 03:21 Subject: Re: Trying to find information on rose/pink quartz and tourmaline associations. |
| Let's see if anyone else can help you (I do not collect Tourmaline so not a subject I can help you with) | |
| Topic: National Museum Cardiff will no longer maintain expertise in mineralogy and petrology |
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| James Catmur Replies: 0 Views: 1141 |
Forum: Worlwide Museums & Visits to Museums and private collections Posted: Feb 26, 2024 06:51 Subject: National Museum Cardiff will no longer maintain expertise in mineralogy and petrology |
| Published at the request of Phil Taylor
We are writing to enlist your support in trying to overturn the decision that the National Museum Cardiff will no longer maintain expertise in mineralogy and ... |
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| Topic: Fluorite locality |
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| James Catmur Replies: 6 Views: 1261 |
Forum: What is it? - Where is it from? Posted: Feb 17, 2024 12:09 Subject: Re: Fluorite locality |
| Just Elmwood | |
| Topic: Gail Spann's Tucson experience, 2024 |
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| James Catmur Replies: 22 Views: 3919 |
Forum: Mineral Shows by Gail Spann Posted: Feb 14, 2024 16:30 Subject: Re: Gail Spann's Tucson experience, 2024 |
| You need to join us in Madrid in March (8-10 M). Jordi should be there, briefly | |
| Topic: Does this high end amethyst/calcite piece seem artificially altered? I can’t work it out. |
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| James Catmur Replies: 7 Views: 1383 |
Forum: Incorrect classification and fakes Posted: Feb 14, 2024 05:02 Subject: Re: Does this high end amethyst/calcite piece seem artificially altered? I can’t work it o |
| It would be easier to move the star and hide the change than the column?
Such fabrications are not new, and the long thin pointy crystal does seem to 'point' that way, but which one has been implan ... |
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| Topic: Does this high end amethyst/calcite piece seem artificially altered? I can’t work it out. |
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| James Catmur Replies: 7 Views: 1383 |
Forum: Incorrect classification and fakes Posted: Feb 14, 2024 04:51 Subject: Re: Does this high end amethyst/calcite piece seem artificially altered? I can’t work it o |
| Such fabrications are not new, and the long thin pointy crystal does seem to 'point' that way, but which one has been implanted? | |
| Topic: Does this high end amethyst/calcite piece seem artificially altered? I can’t work it out. |
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| James Catmur Replies: 7 Views: 1383 |
Forum: Incorrect classification and fakes Posted: Feb 14, 2024 04:32 Subject: Re: Does this high end amethyst/calcite piece seem artificially altered? I can’t work it o |
| The specimen is featured in this post
https://www.mineral-forum.com/message-board/viewtopic.php?p=82680#82680 This is that star, enlarged. Based on that long thin crystal and its neighbours it ... |
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| Topic: Tucson 2024 - It's started! |
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| James Catmur Replies: 84 Views: 22392 |
Forum: News about Shows Posted: Feb 14, 2024 04:28 Subject: Re: Tucson 2024 - It's started! |
| Thanks Bob.
I attended a great talk last week all about the use of fossils, gems and minerals in medical matters. For example, what were belemnites good for? They cured the thing they looked like. ... |
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| Topic: Tucson 2024 - It's started! |
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| James Catmur Replies: 84 Views: 22392 |
Forum: News about Shows Posted: Feb 14, 2024 03:29 Subject: Re: Tucson 2024 - It's started! |
| Thanks Bob.
I attended a great talk last week all about the use of fossils, gems and minerals in medical matters. The Sherman Dugan Museum of Geology at San Juan College entered an interesting c ... |
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