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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 3 matches |
| Author | Message |
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 Topic: is that certificate false ......., |
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| Gold Rock Doc Replies: 11 Views: 17976 |
 Forum: Off-Topic and Introductions Posted: Jun 08, 2014 23:42 Subject: Re: is that certificate false ......., |
| Natural emeralds are easy to distinguish from man-made. The real ones are full of fluid inclusion which often are large enough to see without a lens, but certainly are visible with a 10 X. | |
| Topic: The silver minerals from San Jose district, Oaxaca (Mexico) |
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| Gold Rock Doc Replies: 5 Views: 19642 |
Forum: Mines and Mineral Localities Posted: Apr 21, 2014 22:46 Subject: Re: The silver minerals from San Jose district, Oaxaca (Mexico) |
| Truly beautiful and spectacular!
These wonderfully show the oscillations of hydrothermal solutions responsible for the the crystals. You talk about chemical analysis of specimens for mineral ID, d ... |
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| Topic: Scorodite from Ojuela Mine, Mapimí, Durango... Sulfur Isotope results |
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| Gold Rock Doc Replies: 5 Views: 21509 |
Forum: Incorrect classification and fakes Posted: Feb 08, 2014 02:49 Subject: Re: Scorodite from Ojuela Mine, Mapimí, Durango... Sulfur Isotope results |
| Yes, it would appear that these results do support a separate origin for the two specimens. But your assertion that sulfur isotopes do not vary over pocket-size distances is quite incorrect. Work at ... | |
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