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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 39 matches |
| Author | Message |
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 Topic: Denver Show 2010 |
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| David Von Bargen Replies: 6 Views: 10105 |
 Forum: Mineral Shows Posted: Oct 03, 2010 06:05 Subject: Re: Denver Show 2010 |
| Thanks, Jordi.
Just one minor correction, since my time machine is in the shop (it has problems with 2032), it is a report on the 2010 show (2011 will have a show theme of Russian minerals). |
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| Topic: Is This Piece Irradiated? |
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| David Von Bargen Replies: 9 Views: 12637 |
Forum: Minerals and Mineralogy Posted: Sep 11, 2010 05:59 Subject: Re: Is This Piece Irradiated? |
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My next burning question is if a piece is artificially irradiated, will it change the properties of a certain mineral or gem? Well, it depends on the properties and the amount of radiation. Color ... |
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| Topic: Funny and/or remarkable mineral names from old times |
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| David Von Bargen Replies: 8 Views: 13693 |
Forum: Minerals and Mineralogy Posted: Sep 10, 2010 06:49 Subject: Re: Funny and/or remarkable mineral names from old times |
| Stink-fluss From the German for "stink" and "flow" - fluorite | |
| Topic: Who was Waller? |
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| David Von Bargen Replies: 8 Views: 11569 |
Forum: Minerals and Mineralogy Posted: Sep 05, 2010 06:23 Subject: Re: Who was Waller? |
| Johan Gottschalk Wallerius 1747
Systema Mineralogicum: Quo Corpora Mineralia In Classes, Ordines, Genera Et Species Suis Cum Varietatibus Divisa Describuntur, Atque Observationibus, Experimentis Et F ... |
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| Topic: Who was Waller? |
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| David Von Bargen Replies: 8 Views: 11569 |
Forum: Minerals and Mineralogy Posted: Sep 04, 2010 06:54 Subject: Re: Who was Waller? |
| I wonder if they were referring to the Swedish mineralogist Johan Gottschalk Wallerius. | |
| Topic: Minerals and ethics |
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| David Von Bargen Replies: 16 Views: 18222 |
Forum: Minerals and Mineralogy Posted: Jul 14, 2010 05:42 Subject: Re: Minerals and ethics |
| There are also cases where people have contracted with mining companies for specimen removal (something that can be economically beneficial to both sides - or at least that can give the mining company ... | |
| Topic: Is the natural green quartz actually a leek green color |
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| David Von Bargen Replies: 14 Views: 20770 |
Forum: Minerals and Mineralogy Posted: Jun 26, 2010 06:39 Subject: Re: Is the natural green quartz actually a leek green color |
| A good source for info on colored quartz varieties is George Rossman's chapter "Colored varieties of silica minerals" in Silica, a Mineralogical Society of America "Reviews in Mineralog ... | |
| Topic: Chemical identification |
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| David Von Bargen Replies: 16 Views: 23803 |
Forum: Minerals and Mineralogy Posted: Jun 03, 2010 07:27 Subject: Re: Chemical identification |
| The Mineralogical Record published a book "Mineral Identification: A Practical Guide for the Amateur Mineralogist" — by Donald B. Peck that is an excellent guide to tests that can be done at ... | |
| Topic: Banded Iron Formations |
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| David Von Bargen Replies: 2 Views: 7207 |
Forum: Minerals and Mineralogy Posted: Jun 01, 2010 08:22 Subject: Re: Banded Iron Formations |
| Look for binghamite from Minnesota.
BIFs usually are subjected to metamorphism during which the asbestos grows. Parallel alignment of crystals in metamorphic environments is due to the stress fields ... |
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| Topic: The Arizona Issue |
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| David Von Bargen Replies: 14 Views: 21350 |
Forum: Off-Topic and Introductions Posted: May 03, 2010 09:58 Subject: Re: The Arizona Issue |
| Peter,
If history is any guide, I would not expect a boycott to have any effect on attendance at the show. There was a boycott of Arizona for the ML King holiday from about 1987-1992. I don't recall ... |
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| Topic: Minerals and inflation |
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| David Von Bargen Replies: 19 Views: 23043 |
Forum: Off-Topic and Introductions Posted: Apr 25, 2010 08:00 Subject: Re: Minerals and inflation |
| An interesting calculator for various indices
https://www.measuringworth.com/uscompare/ (link normalized by FMF) |
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| Topic: Minerals and inflation |
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| David Von Bargen Replies: 19 Views: 23043 |
Forum: Off-Topic and Introductions Posted: Apr 24, 2010 13:02 Subject: Re: Minerals and inflation |
| Using diamond prices as a base collectible for inflation probably isn't a good idea since prices are controlled by a cartel. The easiest collectible pricing to find probably are stamps and coins. They ... | |
| Topic: Long term storage of specimens in plastic |
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| David Von Bargen Replies: 14 Views: 19842 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Apr 14, 2010 05:25 Subject: Re: Long term storage of specimens in plastic |
| Yes, the cotton fibers can get on the specimens and if the matrix is a bit crumbly, the cotton can get pretty dingy looking. Mineral & Fossil Supply, Inc. in Denver has the cardboard boxes as well ... | |
| Topic: When a mineral can be called a mineral. |
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| David Von Bargen Replies: 18 Views: 24370 |
Forum: Minerals and Mineralogy Posted: Mar 24, 2010 05:39 Subject: Re: When a mineral can be called a mineral. |
| The "naturalness" of a mineral has been a bit of a moving target over the years with things generally getting a bit tighter in definition over the years. Minerals from coal fires aren't allo ... | |
| Topic: Chalcanthite growth |
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| David Von Bargen Replies: 14 Views: 31563 |
Forum: Minerals and Mineralogy Posted: Mar 23, 2010 12:28 Subject: Re: Chalcanthite growth |
| Also happens in native silver. | |
| Topic: I've been wanting to test some of my stones |
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| David Von Bargen Replies: 3 Views: 9106 |
Forum: Conserving, Preparing and Cleaning Minerals Posted: Mar 15, 2010 07:14 Subject: Re: I've been wanting to test some of my stones |
| Usually it is used at about 10%. One part of acid solution is added to three parts of water (for the commercially available 35% concentration). When doing this, be sure to wear eye protection (and glo ... | |
| Topic: Polished Stones? |
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| David Von Bargen Replies: 2 Views: 5970 |
Forum: Off-Topic and Introductions Posted: Feb 26, 2010 12:28 Subject: Re: Polished Stones? |
| When you polish something, you are making the surface flat (or gently rounded). Once you grind a stone to the desired shape, you go in and try to get rid of scratches and make the surface smooth. You ... | |
| Topic: Mineral shows vs. other types |
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| David Von Bargen Replies: 23 Views: 31465 |
Forum: Mineral Shows Posted: Feb 19, 2010 09:03 Subject: Re: Mineral shows vs. other types |
| I believe that some of the activities at Quartzite run between 2 and 4 months. There are a number of antique shows that last up to 6 days (and run three times a year). Renaissance fairs can run up to ... | |
| Topic: Quartz and family |
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| David Von Bargen Replies: 15 Views: 35207 |
Forum: Minerals and Mineralogy Posted: Feb 01, 2010 07:37 Subject: Re: Quartz and family |
| Which group to put quartz in can provoke a bit of disagreement. The people who like oxides would say it is SiO2. The silicate people would say Si(SiO4). One mineral + two slots= controversy. | |
| Topic: Pro_duo's collections |
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| David Von Bargen Replies: 45 Views: 71571 |
Forum: Collection photos and Collector's page Posted: Dec 15, 2009 06:42 Subject: Re: pro_duo's collections |
| Florida perhaps?
did Florida have any mine that was closed a long time around Brooksville, Florida? I found out the supplier left a piece of sheet and it wrote "BrooksvilleFla". . Yes ... |
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