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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 28 matches |
| Author | Message |
|---|---|
 Topic: Radioactive minerals |
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| Ivan Blanco (PDM) Replies: 29 Views: 183894 |
 Forum: The Ten Thousand Club Posted: Sep 30, 2016 10:37 Subject: Re: Radioactive minerals |
| Hallo, I continue the topic with this piece from D.R. Congo. | |
| Topic: A mineralogical trip through Germany / Baden-Wuerttemberg |
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| Ivan Blanco (PDM) Replies: 42 Views: 87110 |
Forum: A mineralogical trip through Germany Posted: Sep 21, 2016 14:19 Subject: Re: A mineralogical trip through Germany / Baden-Wuerttemberg |
| Another transparent fluorite from Clara. | |
| Topic: Cleaning Pyrite |
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| Ivan Blanco (PDM) Replies: 23 Views: 62782 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Jul 21, 2016 03:08 Subject: Re: Cleaning Pyrite |
| Does anyone know how these originally formed and how did they end up in the clay?
Hi Pierre, these pyrites grew in a marly matrix, it is not clay. These pyrites are not sedimentary as believed befo ... |
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| Topic: Cleaning Pyrite |
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| Ivan Blanco (PDM) Replies: 23 Views: 62782 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Jul 20, 2016 13:55 Subject: Re: Cleaning Pyrite |
| Sorry Pierre, I just have seen your message. The coating around the pyrite cubes of Navajún (and some others from La Rioja) is cookeite. They have been studied and the results published.
Most of t ... |
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| Topic: How to remove biological materials from minerals |
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| Ivan Blanco (PDM) Replies: 7 Views: 16139 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Jun 13, 2016 18:13 Subject: Re: How to remove biological materials from minerals |
| For really tough jobs, when ammonia doesn't work, I use a solution of NaOH or KOH, aka "caustic soda" etc. That will nuke any organic material.... grease, lichens, algae, hair...
PS: Ther ... |
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| Topic: Rare quartz crystals |
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| Ivan Blanco (PDM) Replies: 6 Views: 13874 |
Forum: Minerals and Mineralogy Posted: May 29, 2016 03:29 Subject: Re: Rare quartz crystals |
| Hi, the second picture looks like a Muzo-habit quartz to me.
I would say that the first and last pictures (T_Quarz_1.jpg and T_quarz_3.jpg) are trigonal-habit quartzs. |
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| Topic: A mineralogical trip through Germany / North Rhine-Westphalia |
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| Ivan Blanco (PDM) Replies: 50 Views: 88817 |
Forum: A mineralogical trip through Germany Posted: Oct 12, 2015 13:25 Subject: Re: A mineralogical trip through Germany / North Rhine-Westphalia |
| Hi,
here is another one. |
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| Topic: The Behavior of Navajun Pyrite Cubes |
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| Ivan Blanco (PDM) Replies: 8 Views: 19211 |
Forum: Mines and Mineral Localities Posted: Aug 12, 2015 14:37 Subject: Re: The Behavior of Navajun Pyrite Cubes |
| ...well, I would say that according to the published papers available in the bibliography pyrites from Soria - La Rioja, where the well known deposits of Valdeperillo, Ambas Aguas or Navajún are locat ... | |
| Topic: Differentiating between Aegerine and Arfvedsonite from Mt. Malosa, Malawi |
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| Ivan Blanco (PDM) Replies: 12 Views: 23612 |
Forum: Minerals and Mineralogy Posted: Jul 01, 2015 10:42 Subject: Re: Differentiating between Aegerine and Arfvedsonite from Mt. Malosa, Malawi |
| Hi Joseph
try to look at the basal planes. The section of a pyroxene (like aegirine) is usually a square with modified corners (like an octagone) and the cross-section of an anphibol (like arfvedso ... |
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| Topic: New book:"Crystal Forms of Fluorite - Kristallformen von Fluorit" |
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| Ivan Blanco (PDM) Replies: 11 Views: 35722 |
Forum: Mineralogical Literature Posted: Apr 16, 2014 02:57 Subject: Re: New book:"Crystal Forms of Fluorite - Kristallformen von Fluorit" |
| Here I upload some more pics that the author sent me to publish.
The book is really a great work! |
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| Topic: Mineralogische Kring Antwerpen (MKA) celebrates its 50th anniversary |
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| Ivan Blanco (PDM) Replies: 17 Views: 42759 |
Forum: Mineral Shows Posted: Feb 11, 2014 17:20 Subject: Re: Mineralogische Kring Antwerpen (MKA) celebrates its 50th anniversary |
| Now the rest of the showcase N° 10... | |
| Topic: Mineralogische Kring Antwerpen (MKA) celebrates its 50th anniversary |
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| Ivan Blanco (PDM) Replies: 17 Views: 42759 |
Forum: Mineral Shows Posted: Feb 11, 2014 17:13 Subject: Re: Mineralogische Kring Antwerpen (MKA) celebrates its 50th anniversary |
| Let’s go today with the showcase N°10, the first one dedicated to the Democratic Republic of Congo (Ex. Belgian Congo; Ex. Zaire). | |
| Topic: Mineralogische Kring Antwerpen (MKA) celebrates its 50th anniversary |
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| Ivan Blanco (PDM) Replies: 17 Views: 42759 |
Forum: Mineral Shows Posted: Feb 05, 2014 15:41 Subject: Re: Mineralogische Kring Antwerpen (MKA) celebrates its 50th anniversary |
| Today we conclude this "fast tour" through Belgium with the showcase 9. Then we will continue with the former Belgian colonies: D.R.Congo, Rwanda and Burundi.
The display case N ° 9 is ba ... |
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| Topic: Mineralogische Kring Antwerpen (MKA) celebrates its 50th anniversary |
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| Ivan Blanco (PDM) Replies: 17 Views: 42759 |
Forum: Mineral Shows Posted: Jan 29, 2014 15:50 Subject: Re: Mineralogische Kring Antwerpen (MKA) celebrates its 50th anniversary |
| .....sulphides from Seilles and a quartz from Bierghes. | |
| Topic: Mineralogische Kring Antwerpen (MKA) celebrates its 50th anniversary |
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| Ivan Blanco (PDM) Replies: 17 Views: 42759 |
Forum: Mineral Shows Posted: Jan 29, 2014 15:46 Subject: Re: Mineralogische Kring Antwerpen (MKA) celebrates its 50th anniversary |
| Hi,
The N°8 displays groups of gypsum crystals from Betekom and Niel, sulphides from Seilles and a quartz from Bierghes. |
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