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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 665 matches |
| Author | Message |
|---|---|
 Topic: Dark green mineral, what is this? |
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| vic rzonca Replies: 9 Views: 7904 |
 Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Jul 09, 2022 09:56 Subject: Re: Dark green mineral, what is this? |
| Looks like tourmaline. Watermelon tourmaline. Do some tests on it as James said. | |
| Topic: Please help ID, maybe pyrite? |
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| vic rzonca Replies: 4 Views: 5806 |
Forum: What is it? - Where is it from? Posted: Jun 22, 2022 13:12 Subject: Re: Please help ID, maybe pyrite? |
| Goethite after pyrite. | |
| Topic: what stones are these? |
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| vic rzonca Replies: 15 Views: 11466 |
Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Mar 23, 2021 09:39 Subject: Re: what stones are these? |
| I should have said a carbonate. | |
| Topic: what stones are these? |
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| vic rzonca Replies: 15 Views: 11466 |
Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Mar 23, 2021 08:31 Subject: Re: what stones are these? |
| Limestone. | |
| Topic: Quartz-like but not quite, help needed. |
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| vic rzonca Replies: 3 Views: 4575 |
Forum: FOR BEGINNERS: What is it? Where is it from? Posted: Feb 12, 2021 09:03 Subject: Re: Quartz-like but not quite, help needed. |
| Fluorite. | |
| Topic: Tucson 2021 |
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| vic rzonca Replies: 2 Views: 9985 |
Forum: Mineral Shows Posted: Oct 22, 2020 19:34 Subject: Tucson 2021 |
| http://www.pima.gov/health
(link normalized by FMF) If you're interested in what's up with the Tucson Show, go to this site and search "Application for special events over 50 attendees". ... |
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| Topic: Collecting quartz on the Little Falls dolostone |
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| vic rzonca Replies: 128 Views: 230003 |
Forum: Mines and Mineral Localities Posted: Oct 04, 2020 15:53 Subject: Re: Collecting quartz on the Little Falls dolostone |
| Sanest place to be is on the Ridge, beating the devil out of the dolostone. Here's what he left behind. | |
| Topic: Mineral Collections of Brazil |
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| vic rzonca Replies: 14 Views: 44138 |
Forum: Mineralogical Literature Posted: Oct 04, 2020 15:08 Subject: Re: Mineral Collections of Brazil |
| The new publication on Brazilian collectors and collections. I'm waiting for my copy, signed and hand delivered to me in Tucson, by one of the collectors covered. So, La Dee Da! And to reiterate, ther ... | |
| Topic: Mineral Collections of Brazil |
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| vic rzonca Replies: 14 Views: 44138 |
Forum: Mineralogical Literature Posted: Oct 04, 2020 13:36 Subject: Re: Mineral Collections of Brazil |
| There is an English version. Your inquiry allows me to recommend another book by the same authors. Riveting for any collector. | |
| Topic: Need help on cleaning a specimen |
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| vic rzonca Replies: 7 Views: 22153 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Oct 03, 2020 13:23 Subject: Re: Need help on cleaning a specimen |
| Most of the Brazilian "citrine" starts out as inferior amethyst that is heated to bring out the orange color. The coating is another generation of quartz. Short of advanced acid etching tech ... | |
| Topic: Calcite ? |
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| vic rzonca Replies: 7 Views: 6401 |
Forum: What is it? - Where is it from? Posted: Aug 16, 2020 10:34 Subject: Re: Calcite ? |
| Thank you all for your answer. I tried with the lemon in the back where it's like the front without success but maybe I haven't done correctly. In the back, the whiter part seems to be Chalk (1 in th ... | |
| Topic: Calcite ? |
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| vic rzonca Replies: 7 Views: 6401 |
Forum: What is it? - Where is it from? Posted: Aug 09, 2020 11:27 Subject: Re: Calcite ? |
| Dany, you might try an acid test on a bit of the unknown, possibly scraped from an in-obvious place. Put a few drops of lemon juice on it. If it fizzes, combined with the location, would indicate lime ... | |
| Topic: Stay at home - Coronavirus / Covid-19 |
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| vic rzonca Replies: 364 Views: 455276 |
Forum: National Library of Spain / Biblioteca Nacional de España (BNE) and FMF Posted: Aug 02, 2020 20:02 Subject: Re: Stay at home - Coronavirus / Covid-19 |
| Not a good idea to be out in the field with pointy bars sticking out of a sack full of steel. So, the Faraday cage of the control shack seemed like a good idea. | |
| Topic: Is this Calcite or Dolomite |
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| vic rzonca Replies: 8 Views: 7583 |
Forum: What is it? - Where is it from? Posted: Jul 31, 2020 07:10 Subject: Re: Is this Calcite or Dolomite |
| Both are carbonates. Calcite is calcium carbonate, dolomite is calcium magnesium carbonate. I'm not sure I've answered the question you've asked. | |
| Topic: Sodium Dithonite, Waller solution, Oxalic acid or HCl |
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| vic rzonca Replies: 9 Views: 21540 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Jul 21, 2020 09:54 Subject: Re: Sodium Dithonite, Waller solution, Oxalic acid or HCl |
| It speeds the process if you warm the Super Iron Out. Contains Sodium Hydrosulfite and Sodium Metabisulfite. Always use any chemical with care. The two quartz samples are from the same pocket, one unc ... | |
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