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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 585 matches |
| Author | Message |
|---|---|
 Topic: Kimberlite and Diamond? |
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| Jesse Fisher Replies: 7 Views: 754 |
 Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Apr 06, 2024 11:19 Subject: Re: Kimberlite and Diamond? |
| I recall seeing a dealer at the Munich show around that time who was selling diamond in kimberlite matrix specimen that had been assembled, though without the statuary. They were, however, labeled &qu ... | |
| Topic: Fluorite crystallography? |
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| Jesse Fisher Replies: 27 Views: 9662 |
Forum: Minerals and Mineralogy Posted: Nov 28, 2023 11:08 Subject: Re: Fluorite crystallography? |
| Another Naica fluorite, which according to Pete's analysis would be cube-dodechahedral habit. From the find circa 2005. | |
| Topic: A mineralogical trip through Germany / Bayern - Bavaria |
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| Jesse Fisher Replies: 32 Views: 58072 |
Forum: A mineralogical trip through Germany Posted: Oct 06, 2023 14:48 Subject: Re: A mineralogical trip through Germany / Bayern - Bavaria |
| Fluorite with dolomite and minor galena, from an unknown mine in the Wolsendorf area. | |
| Topic: Pele's Hair and Tears |
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| Jesse Fisher Replies: 5 Views: 6040 |
Forum: Minerals and Mineralogy Posted: Sep 26, 2023 10:44 Subject: Re: Pele's Hair and Tears |
| Pele's hair is a common byproduct of active lava fountaining during an eruption of basaltic lava at a volcano such as Hawaii's Kilauea. It is produced during fountaining when escaping volatile gases ( ... | |
| Topic: A phase coming to an end (but nothing about FMF ,-) |
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| Jesse Fisher Replies: 11 Views: 11760 |
Forum: Off-Topic and Introductions Posted: Sep 17, 2023 11:23 Subject: Re: A phase coming to an end (but nothing about FMF ,-) |
| It has been said that the only constant in life is change. After being involved with mineral collecting for around 40 years now, this is becoming all too evident. In recent years many of the dealers a ... | |
| Topic: Is there anything that could make you give up mineral collecting? |
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| Jesse Fisher Replies: 13 Views: 11615 |
Forum: Off-Topic and Introductions Posted: Sep 11, 2023 19:49 Subject: Re: Is there anything that could make you give up mineral collecting? |
| Can't collect because prices are too high? You all must be going to the wrong venues. I have no trouble finding great specimens for 3-figure prices. The problem I think is that people are much like mo ... | |
| Topic: Is there anything that could make you give up mineral collecting? |
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| Jesse Fisher Replies: 13 Views: 11615 |
Forum: Off-Topic and Introductions Posted: Sep 10, 2023 23:21 Subject: Re: Is there anything that could make you give up mineral collecting? |
| The ever-increasing prices ask for decent specimens is certainly making it difficult to pursue building a serious collection any more. The shift in the overall hobby toward aesthetics over scientific ... | |
| Topic: Equipment for part time hobbyist. |
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| Jesse Fisher Replies: 2 Views: 3918 |
Forum: Off-Topic and Introductions Posted: May 30, 2023 12:30 Subject: Re: Equipment for part time hobbyist. |
| Hello Adrian, The FMF is primarily about specimen mineralogy and not lapidary items or procedures, so you are not likely to find much useful information here. I would suggest looking on Facebook for a ... | |
| Topic: A very strange specimen of Hardin Co., Illinois |
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| Jesse Fisher Replies: 6 Views: 5941 |
Forum: Minerals and Mineralogy Posted: Mar 13, 2023 15:39 Subject: Re: A very strange specimen of Hardin Co., Illinois |
| Fossil assemblages associated with fluorite mineralization were not uncommon at the Rogerley Mine. Most common were carboniferous-era colony corals, which were often present in the host limestone. Min ... | |
| Topic: adularia locale? |
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| Jesse Fisher Replies: 11 Views: 10481 |
Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Mar 11, 2023 17:16 Subject: Re: adularia locale? |
| Could possibly be from the Sudtirol in the Trentino-Alto Adige region. | |
| Topic: adularia locale? |
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| Jesse Fisher Replies: 11 Views: 10481 |
Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Mar 11, 2023 01:19 Subject: Re: adularia locale? |
| The specimen is typical for adularia with chlorite coating from an alpine-cleft-type metamorphic environment. The best known of these are in the Swiss/French/Austrian alps, but also from the Alchuri a ... | |
| Topic: Diamond pseudomorphs after graphite |
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| Jesse Fisher Replies: 8 Views: 5059 |
Forum: Minerals and Mineralogy Posted: Feb 21, 2023 15:46 Subject: Re: Diamond pseudomorphs after graphite |
| Is this what is referred to as "bort"? I think this is a diamond heavily included with graphite. Usually ground up for industrial purposes. I've never heard of it called a pseudomorph, howev ... | |
| Topic: The Alfie Norville Gem & Mineral Museum, Tucson/AZ (from Mindat / by R. Starkey) |
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| Jesse Fisher Replies: 1 Views: 4819 |
Forum: University Arizona Tucson Mineral Museum Posted: Feb 21, 2023 11:11 Subject: Re: The Alfie Norville Gem & Mineral Museum, Tucson/AZ (from Mindat / by R. Starkey) |
| The Norville museum strikes an excellent balance between education and visual entertainment. Yet another reason to visit Tucson! | |
| Topic: Elbaite from Pala ? |
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| Jesse Fisher Replies: 1 Views: 2922 |
Forum: Minerals and Mineralogy Posted: Feb 05, 2023 23:43 Subject: Re: Elbaite from Pala ? |
| It would be good to see a photo or two of the complete specimen, but it could be Mesa Grande (Himalaya Mine) rather than Pala. | |
| Topic: Cleaning Cookeite over pink Tourmaline |
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| Jesse Fisher Replies: 9 Views: 5331 |
Forum: Off-Topic and Introductions Posted: Jan 14, 2023 01:04 Subject: Re: Cleaning Cookeite over pink Tourmaline |
| I am not sure that I would recommend using hot sulfuric acid any more than HF to anyone who does not have access to a "professional" grade laboratory setup and training in proper lab safety ... | |
| Topic: Cleaning Cookeite over pink Tourmaline |
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| Jesse Fisher Replies: 9 Views: 5331 |
Forum: Off-Topic and Introductions Posted: Jan 13, 2023 22:33 Subject: Re: Cleaning Cookeite over pink Tourmaline |
| Unfortunately, cookeite is essentially a micro muscovite, and muscovite is largely impervious to most chemical treatments, even HF. The only way I have ever found to remove the stuff is by repeated so ... | |
| Topic: Locality for a Väyrynenite? |
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| Jesse Fisher Replies: 13 Views: 20944 |
Forum: Improving the FMF Data Base of localities Posted: Oct 25, 2022 14:09 Subject: Re: Locality for a Väyrynenite? |
| In response to this thread on vayrynenite, Dudley sent me the following:
Throughout my years in Pakistan, I have seen dozens of finds of väyrynenite. Many come from the Rondu (I prefer this spell ... |
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| Topic: Locality for a Väyrynenite? |
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| Jesse Fisher Replies: 13 Views: 20944 |
Forum: Improving the FMF Data Base of localities Posted: Oct 21, 2022 10:59 Subject: Re: Locality for a Väyrynenite? |
| About 12 years ago I purchased a microcline specimen from Dudley Blauwet, which has a small red-orange crystal in a crevice. Dudley told me that it is vayrynenite, and gave the location as "Kharg ... | |
| Topic: Cavansite |
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| Jesse Fisher Replies: 4 Views: 12150 |
Forum: Micros & Macros - Images of Minerals Posted: Sep 26, 2022 11:37 Subject: Re: Cavansite |
| I believe it was 1989 when they first showed up in Tucson. I recall spending a good bit of money for one from Dr. Hans Jurgen Wilke. Given that they just kept coming, I'm sure it was not one of my bes ... | |
| Topic: A mineralogical trip through the regions of the UK - England / Cumbria |
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| Jesse Fisher Replies: 141 Views: 210401 |
Forum: A mineralogical trip through the regions of the UK Posted: Sep 18, 2022 12:23 Subject: Re: A mineralogical trip through the regions of the UK - England / Cumbria |
| A nice old calcite from the West Cumbrian (Cumberland) iron ore deposits, with a label from Ward's Natural Science, located in Rochester, New York. It is difficult to date old Ward's specimens by the ... | |
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