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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 6 matches |
| Author | Message |
|---|---|
 Topic: Aura Coating |
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| eric8he Replies: 15 Views: 25013 |
 Forum: Incorrect classification and fakes Posted: May 28, 2021 09:21 Subject: Re: Aura Coating |
| Wouldn't bead blasting remove the "aura" coating from quartz? I think most metals commonly used as a coating have a hardness of 6 or less and can probably be removed with glass beads. | |
| Topic: A mineralogical trip through the states of USA - Washington |
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| eric8he Replies: 18 Views: 41694 |
Forum: A mineralogical trip through the states of USA Posted: May 28, 2020 23:49 Subject: Re: A mineralogical trip through the states of USA - Washington |
| Here are a few pieces from my King County, Washington collection. | |
| Topic: V-Twin Found in Washington |
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| eric8he Replies: 7 Views: 10513 |
Forum: What is it? - Where is it from? Posted: Feb 03, 2020 22:49 Subject: Re: V-Twin Found in Washington |
| One approach is to set a contact goniometer to the complementary angle of 119 degrees and lay it parallel to the striations of one crystal - both sets on either side of the outer edge. Then see if the ... | |
| Topic: V-Twin Found in Washington |
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| eric8he Replies: 7 Views: 10513 |
Forum: What is it? - Where is it from? Posted: Feb 03, 2020 22:31 Subject: Re: V-Twin Found in Washington |
| Here is the thread with the supposed Frondel-law twin.
https://www.mineral-forum.com/message-board/viewtopic.php?p=68713&highlight=#68713 |
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| Topic: V-Twin Found in Washington |
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| eric8he Replies: 7 Views: 10513 |
Forum: What is it? - Where is it from? Posted: Feb 02, 2020 22:33 Subject: Re: V-Twin Found in Washington |
| Unfortunately I am not in Tucson and cannot attend. What are some of the next steps to verify if it truly is a twin? | |
| Topic: V-Twin Found in Washington |
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| eric8he Replies: 7 Views: 10513 |
Forum: What is it? - Where is it from? Posted: Feb 01, 2020 23:27 Subject: V-Twin Found in Washington |
| I have found another twin while excavating the rest of the pocket that yielded the Frondel twin I posted a while back. This one resembles a Reichenstein-Grieserntal twin, but the angle is too narrow f ... | |
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