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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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| Search found 84 matches |
| Author | Message |
|---|---|
 Topic: Is this dolomite-pyrite-siderite? |
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| Kevin Schofield Replies: 6 Views: 492 |
 Forum: FOR BEGINNERS: What is it? Where is it from? Posted: May 28, 2024 10:15 Subject: Re: Is this dolomite-pyrite-siderite? |
| Hi forum,
I am here seeking some help. Just to confirm Is this dolomite-pyrite-siderite? or something else? dim.: approx. 15 cm X 10 cm X 13 cm net weight: 1633 gr. origin: Unknown ... |
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| Topic: Need help identifying |
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| Kevin Schofield Replies: 4 Views: 2016 |
Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Jan 19, 2024 08:42 Subject: Re: Need help identifying |
| I have recently acquired multiple minerals and stones and need help identifying them. I'm new to this forum and hope that the experience of the members can point me in the right direction and teach me ... | |
| Topic: Need to identify black stone |
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| Kevin Schofield Replies: 21 Views: 4239 |
Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Jan 17, 2024 09:12 Subject: Re: Need to identify black stone |
| Could it be charcoal or even coal?
I agree with you James...the very straight sides and right-angled edges on the larger piece look like cleat breakage, which would be typical of coal. Take that w ... |
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| Topic: Can anyone help me identify the original mineral this pseudomorph? |
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| Kevin Schofield Replies: 4 Views: 3339 |
Forum: What is it? - Where is it from? Posted: Dec 16, 2023 11:08 Subject: Re: Can anyone help me identify the original mineral this pseudomorph? |
| Looks like an epimorph or perimorph of something. Find a broken crystal and see if you can work out the form of the mineral the epimorph covered
I agree with James that these look like epimorphs. ... |
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| Topic: What is this sand stone rock? |
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| Kevin Schofield Replies: 5 Views: 3766 |
Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Nov 30, 2023 14:57 Subject: Re: What is this sand stone rock? |
| Here is a closeup, I hope, of better quality.
Not really. It may help to know where it was found, but I think I can say with certainty that it isn't a sand rose of any sort, ancient or otherwis ... |
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| Topic: Dissolution enables dolomite crystal growth near ambient conditions |
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| Kevin Schofield Replies: 9 Views: 5566 |
Forum: Mineralogical Literature Posted: Nov 27, 2023 11:28 Subject: Re: Dissolution enables dolomite crystal growth near ambient conditions |
| Following on from my post above, by an odd coincidence an article came up on my LinkedIn feed, pointing out the cover article from the magazine SCIENCE VOLUME 382| ISSUE 6673|24 NOV 2023 entitled &quo ... | |
| Topic: Dissolution enables dolomite crystal growth near ambient conditions |
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| Kevin Schofield Replies: 9 Views: 5566 |
Forum: Mineralogical Literature Posted: Nov 24, 2023 11:56 Subject: Re: Dissolution enables dolomite crystal growth near ambient conditions |
| Pete I have to contradict you. Your explanation of the replacement of calcite by dolomite during diagenesis was the ancient solution to the origin of dolomite formations such as the Dolomite Mountains ... | |
| Topic: I’m pretty sure I know what it is, I’m just curious how to smooth the scruffs |
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| Kevin Schofield Replies: 6 Views: 3620 |
Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Nov 22, 2023 12:50 Subject: Re: I’m pretty sure I know what it is, I’m just curious how to smooth the scruffs |
| I found it in a rock pile at work. It’s pretty heavy I’d say nearly 90% is all geode. However as you can see it’s been roughed up scraping against rocks. My question is how do I polish it or get rid ... | |
| Topic: Minimum size for a mineral museum |
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| Kevin Schofield Replies: 11 Views: 11255 |
Forum: Off-Topic and Introductions Posted: Sep 08, 2023 11:56 Subject: Re: Minimum size for a mineral museum |
| Hi David,
you will likely get as many opinions and as many numbers as there will be replies to this question, so let me throw in a bigger number than Roger and an "it depends" statement. ... |
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| Topic: Any chance of finding uranium ore in Southeastern USA? |
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| Kevin Schofield Replies: 5 Views: 16142 |
Forum: Rockhounding trips Posted: Mar 22, 2023 12:43 Subject: Re: Any chance of finding uranium ore in Southeastern USA? |
| USGS (the United States Geological Survey) and State Geological Surveys are the keepers of resource maps for the continental US.
I would suggest that you start with their websites. On the other ... |
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| Topic: Silurian greywackes on the Berwickshire coast Scotland |
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| Kevin Schofield Replies: 13 Views: 16549 |
Forum: Mines and Mineral Localities Posted: Nov 16, 2022 10:32 Subject: Re: Silurian greywackes on the Berwickshire coast Scotland |
| In macro the Silurian greywackes are about as interesting as cement! But in pano they are magnificent. From Eyemouth to Siccar point the geology is stunning.
It is no wonder Hutton looked at these ... |
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| Topic: Visit to the Greenlaws Mine by Jolyon Ralph |
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| Kevin Schofield Replies: 2 Views: 7273 |
Forum: Mines and Mineral Localities Posted: Aug 02, 2022 08:51 Subject: Re: Visit to the Greenlaws Mine by Jolyon Ralph |
| Fabulous!
Thanks to Jolyon and Katya (and Roman!) for posting, thanks to Peter and his friends for their efforts to bring the mine back, and thanks to you Tobi for bringing it to our attention.... ... |
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| Topic: Datolite locality question |
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| Kevin Schofield Replies: 9 Views: 6166 |
Forum: What is it? - Where is it from? Posted: Jul 31, 2022 13:13 Subject: Re: Datolite locality question |
| Dear Kevin thanks for your reply.
Could it perhaps be that the biger crystals, on the first photo, aren't datolite at all, but Calcite? I have some greenish USA (upper new street quarry)- and also ... |
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| Topic: Datolite locality question |
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| Kevin Schofield Replies: 9 Views: 6166 |
Forum: What is it? - Where is it from? Posted: Jul 31, 2022 11:53 Subject: Re: Datolite locality question |
| Dear FMF specialists,
I've just acquired a small batch of mineral specimens, 10 pcs, half of them are from Peru, containing Tetrahedrite, Galena sphalerite, Rhodochrosite in various combinations. ... |
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| Topic: Caldbeck cumbria mineral |
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| Kevin Schofield Replies: 2 Views: 2922 |
Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Jun 30, 2022 07:50 Subject: Re: Caldbeck cumbria mineral |
| loads in this one My rooky ID
Mimetite Pyromorphite Chrysocolla Feel free to ID or correct my assumptions Hi Forrest, Welcome to the Forum, and congrats on this and your previous posts f ... |
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| Topic: Gold? |
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| Kevin Schofield Replies: 2 Views: 3221 |
Forum: What is it? - Where is it from? Posted: Jun 24, 2022 08:35 Subject: Re: Gold? |
| I'm a beginner needing second opinions on identification.
Duane, Welcome to FMF. Please check out the link at the top of the page "A General Guide for Using the Forum...", especially the ... |
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| Topic: Milky Quartz? |
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| Kevin Schofield Replies: 2 Views: 2191 |
Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Apr 16, 2022 07:18 Subject: Re: Milky Quartz? |
| Hi zzinVermont,
these are quartz crystals, and geologically-speaking they have epitaxial quartz growing over the prism faces, which is to say that they have tiny quartz crystals growing on the main ... |
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| Topic: A very dear memory. |
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| Kevin Schofield Replies: 6 Views: 13798 |
Forum: The histories behind mineral specimens Posted: Apr 07, 2022 08:00 Subject: Re: A very dear memory. |
| Hi Santi,
I suspect that for many of us our mineral collections carry a freight of happy memories from when they were collected/found/purchased...but this piece (which isn't half bad btw!) is a tru ... |
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| Topic: What kind of mineral is it? |
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| Kevin Schofield Replies: 3 Views: 2943 |
Forum: What is it? - Where is it from? Posted: Mar 31, 2022 08:24 Subject: Re: What kind of mineral is it? |
| Hello Everybody!
I'd like to ask a little help to identify this mineral? Unfortunately it's not in my hand so I'm not able to test it. Thanks. This is not a mineral. It is either a piece of fin ... |
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| Topic: What could this be? |
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| Kevin Schofield Replies: 3 Views: 2839 |
Forum: What is it? - Where is it from? Posted: Mar 23, 2022 09:00 Subject: Re: What could this be? |
| Found it on a random spot along a Patagonian lake shore, where black obsidians and common quartz are everywhere, and caught my attention. A friend of mine wants to break it, but I am not sure of that ... | |
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