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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 28 matches |
| Author | Message |
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 Topic: Faden Quartz Crystals - (26) |
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| Harjo Replies: 63 Views: 137066 |
 Forum: Featured Columns of FMF Posted: Jun 23, 2018 18:52 Subject: Re: Faden Quartz Crystals - (26) |
| I have the impression that your theory, Roger, is not at all far off from the commonly accepted theory like described in Rykart, or in other literature for that matter.
Maybe the cracking and re-hea ... |
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| Topic: Black or very dark background? |
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| Harjo Replies: 6 Views: 12169 |
Forum: Minerals and Mineralogy Posted: Aug 15, 2017 15:00 Subject: Re: Black or very dark background? |
| Here a dark background was best ;-) | |
| Topic: Black or very dark background? |
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| Harjo Replies: 6 Views: 12169 |
Forum: Minerals and Mineralogy Posted: Aug 15, 2017 14:59 Subject: Re: Black or very dark background? |
| I think sometimes a white background is best and sometimes a light coloured background is to be preferred, it all depends on the specimen and which aspects of the specimen you wish to 'reveal'.
What ... |
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| Topic: Ex so and so’s collection |
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| Harjo Replies: 26 Views: 36383 |
Forum: Minerals and Mineralogy Posted: Aug 10, 2017 10:02 Subject: Re: Ex so and so’s collection |
| Apart from the reasons Alfredo gave, I have the impression that the 'ex-a, ex-b, ex-c, ex-whoever) is merely part of the hyperbole used to add extra value to a specimen.
This 'ex so and so' seems to ... |
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| Topic: Faden Quartz Crystals - (26) |
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| Harjo Replies: 63 Views: 137066 |
Forum: Featured Columns of FMF Posted: Jan 12, 2017 07:44 Subject: Re: Faden Quartz Crystals - (26) |
| Definitely not a Gwindel. This could be a faden crystal, but it looks more like a double terminated "rehealed" crystal. A crystal comes loose from the pocket wall and subsequently crystallis ... | |
| Topic: Faden Quartz Crystals - (26) |
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| Harjo Replies: 63 Views: 137066 |
Forum: Featured Columns of FMF Posted: Jan 08, 2017 15:38 Subject: Re: Faden Quartz Crystals - (26) |
| Now you should be able to watch the video ;-)
wnNuvfh_bV8 |
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| Topic: Faden Quartz Crystals - (26) |
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| Harjo Replies: 63 Views: 137066 |
Forum: Featured Columns of FMF Posted: Dec 30, 2016 18:09 Subject: Re: Faden Quartz Crystals - (26) |
| Exactly, and while expanding the fluids present cause quartz crystals to grow on the row of quartz grains, just up to the point of saturation. The orientation of the faden towards the c-axis as illust ... | |
| Topic: Faden Quartz Crystals - (26) |
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| Harjo Replies: 63 Views: 137066 |
Forum: Featured Columns of FMF Posted: Dec 30, 2016 17:54 Subject: Re: Faden Quartz Crystals - (26) |
| Another quite interesting fadenquartz from the same locality | |
| Topic: Faden Quartz Crystals - (26) |
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| Harjo Replies: 63 Views: 137066 |
Forum: Featured Columns of FMF Posted: Dec 30, 2016 17:53 Subject: Re: Faden Quartz Crystals - (26) |
| Just as an illustration...here is a nice curved fadenquartz from Bierghes, Belgium.
I found many curved fadenquartzes in one specific cleft, hardly any in many other nearby clefts. The curvature of t ... |
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| Topic: Rare quartz crystals |
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| Harjo Replies: 6 Views: 13877 |
Forum: Minerals and Mineralogy Posted: Sep 19, 2016 04:28 Subject: Re: Rare quartz crystals |
| Ivan is right. The first and last are trigonal habits. They lack rhombohedral z-faces.
The second photo is a group with Muzo habit and Tessin (or alsa called Penninic habit or Rauriser habit) habit q ... |
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| Topic: Is it really true? (the biggest emerald in the world) |
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| Harjo Replies: 14 Views: 35234 |
Forum: Minerals and Mineralogy Posted: Mar 27, 2012 14:48 Subject: Re: Is it really true?(the biggest emerald in the world) |
| Found something here Jesse:
https://www.dailymail.co.uk/news/article-2092514/Worlds-Largest-Emerald-worth-1-2-million-emerald-all.html (link normalized by FMF) Not quite your trustworthy gemmologi ... |
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| Topic: Is it really true? (the biggest emerald in the world) |
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| Harjo Replies: 14 Views: 35234 |
Forum: Minerals and Mineralogy Posted: Mar 27, 2012 11:29 Subject: Re: Is it really true?(the biggest emerald in the world) |
| I think it's an Emerald, but of very low quality (and very badly cut...)
It's supposed to be auctioned somewhere in Canada, if I remember correctly. The estimated selling price was ridiculously high. ... |
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| Topic: My trip in Savoie-France |
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| Harjo Replies: 12 Views: 20759 |
Forum: Micros & Macros - Images of Minerals Posted: Nov 09, 2010 12:50 Subject: Re: My trip in Savoie-France |
| Great specimens and beautiful photos (as usual!) Fred! | |
| Topic: Swiss Adularia Locality Help |
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| Harjo Replies: 6 Views: 22856 |
Forum: Minerals and Mineralogy Posted: Sep 04, 2010 16:25 Subject: Re: Swiss Adularia Locality Help |
| Peter, the label should read Göscheneralm (Göscheneralp) . I can't be more specific about the locality as Adularia is a common mineral in the Alpine clefts of the region.
Here's a photo that Joe pos ... |
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| Topic: Alpine type fissure contents |
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| Harjo Replies: 11 Views: 23017 |
Forum: Mines and Mineral Localities Posted: Sep 04, 2010 16:11 Subject: Re: Alpine type fissure contents |
| Very nice Scott! Congratulations. | |
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