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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 20 matches |
| Author | Message |
|---|---|
 Topic: Waller solution With Citric acid sodium bicarbonate |
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| al mar Replies: 4 Views: 3177 |
 Forum: Conserving, Preparing and Cleaning Minerals Posted: Dec 15, 2024 07:04 Subject: Re: Waller solution With Citric acid sodium bicarbonate |
| Thanks, where I live SIO is not available, and sodium citrate is more expensive than Citric acid + bicarbonate | |
| Topic: Waller solution With Citric acid sodium bicarbonate |
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| al mar Replies: 4 Views: 3177 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Dec 15, 2024 05:07 Subject: Waller solution With Citric acid sodium bicarbonate |
| Hello,
I am trying to clean some specimens with the famous Waller solution, a mixture of sodium bicarbonate, sodium citrate and sodium dithionite. As sodium citrate is not available in some countri ... |
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| Topic: Vauxite from Huanuni? |
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| al mar Replies: 3 Views: 8958 |
Forum: Mines and Mineral Localities Posted: Nov 08, 2020 02:37 Subject: Re: Vauxite from Huanuni? |
| Here I have one photo of those vauxites if it helps. | |
| Topic: Vauxite from Huanuni? |
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| al mar Replies: 3 Views: 8958 |
Forum: Mines and Mineral Localities Posted: Nov 06, 2020 06:44 Subject: Vauxite from Huanuni? |
| Hello,
On my last trip to Bolivia, in 2016 I got one sample of vauxite that supposedly came from the Huanuni mine. I got that sample from a mining engineer that works in the mine, and taking minera ... |
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| Topic: Sodium Dithonite, Waller solution, Oxalic acid or HCl |
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| al mar Replies: 9 Views: 22163 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Jul 26, 2020 12:34 Subject: Re: Sodium Dithonite, Waller solution, Oxalic acid or HCl |
| Hello, to all,
Thanks for the guidelines! I started with the cleaning and preparation, we will see the results. A last question. What andvantages/disadvantages has the Waller solution (Sodium ... |
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| Topic: Sodium Dithonite, Waller solution, Oxalic acid or HCl |
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| al mar Replies: 9 Views: 22163 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Jul 21, 2020 16:43 Subject: Re: Sodium Dithonite, Waller solution, Oxalic acid or HCl |
| Hi,
Thanks to all. First yes, managing chemical products even these that are commonly used has to be done with the proper security measures that are available on the internet and on the safety form ... |
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| Topic: Sodium Dithonite, Waller solution, Oxalic acid or HCl |
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| al mar Replies: 9 Views: 22163 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Jul 21, 2020 04:35 Subject: Sodium Dithonite, Waller solution, Oxalic acid or HCl |
| Hello,
I have some samples of quartz and feldspar with a coating of iron oxides. Being quite resistant minerals, I am only used to clean them with HCl (muriatic acid), but I have read that it i ... |
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| Topic: Natural Blue Topaz w/ Multiple Tiny Unknown Mineral Inclusions |
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| al mar Replies: 4 Views: 5504 |
Forum: What is it? - Where is it from? Posted: May 16, 2020 10:34 Subject: Re: Natural Blue Topaz w/ Multiple Tiny Unknown Mineral Inclusions |
| I have seen elbaites directly associated with galena from brazil, and not glued for sure. Totally strange, but possible | |
| Topic: Colours of Rhodochrosite and Other Mn Bearing Carbonates |
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| al mar Replies: 9 Views: 15429 |
Forum: Minerals and Mineralogy Posted: Jul 25, 2019 08:44 Subject: Re: Colours of Rhodochrosite and Other Mn Bearing Carbonates |
| Thanks Alfredo. The one that I saw from Huanuni could be rhodocrosite but also could be an Mn bearing Carbonate. Regarding ones from Llallagua the aspect was the one that you describe so it would be p ... | |
| Topic: Colours of Rhodochrosite and Other Mn Bearing Carbonates |
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| al mar Replies: 9 Views: 15429 |
Forum: Minerals and Mineralogy Posted: Jul 23, 2019 14:07 Subject: Re: Colours of Rhodochrosite and Other Mn Bearing Carbonates |
| Regarding to Bolivian ones, in Mindat there is one photo from San José, and I have seen botryoidal ones from Llallagua and one from Huanuni. All of them were pale pink, different to siderites from the ... | |
| Topic: Colours of Rhodochrosite and Other Mn Bearing Carbonates |
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| al mar Replies: 9 Views: 15429 |
Forum: Minerals and Mineralogy Posted: Jul 22, 2019 17:39 Subject: Re: Colours of Rhodochrosite and Other Mn Bearing Carbonates |
| Hi, to all, and thanks for the answers.
I found interesting the article that Pete quotes, and seems logical looking for example the capillitite variety,( https://www.mindat.org/min-27208.html ) imp ... |
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| Topic: Colours of Rhodochrosite and Other Mn Bearing Carbonates |
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| al mar Replies: 9 Views: 15429 |
Forum: Minerals and Mineralogy Posted: Jul 22, 2019 08:00 Subject: Colours of Rhodochrosite and Other Mn Bearing Carbonates |
| Hello,
I have seen that rhodocrosites from some deposits, as the ones from Huelva province in Spain, or the El-Valle Boinás ones ( https://www.mindat.org/gallery.php?loc=106025&min=3406) had a ... |
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| Topic: How to "Defrost" crystals in quartz |
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| al mar Replies: 4 Views: 12431 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Aug 26, 2018 09:45 Subject: Re: How to "Defrost" crystals in quartz |
| I have seem other samples in mineralogical shows (but it is difficult to find photos available to post) I know that some world top laboratories are working on that, but I find difficult to know thei ... | |
| Topic: How to "Defrost" crystals in quartz |
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| al mar Replies: 4 Views: 12431 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Aug 26, 2018 08:25 Subject: How to "Defrost" crystals in quartz |
| Hello, I have seen some crystals "defrost" from the quartz matrix covering, and the appearance is in most cases very good. I would like to know about experiences and methods used successfull ... | |
| Topic: Help me with price |
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| al mar Replies: 3 Views: 8486 |
Forum: Off-Topic and Introductions Posted: Jun 30, 2012 08:47 Subject: Re: Help me with price |
| This forum don´t allow questions about mineral trade. You can find a lot of similar crocoites at sale on shows or other websites, you should compare prices. | |
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