FMF - Friends of Minerals Forum, discussion and message board

Hi Tasos (Good to see that you still have the time to worry about amethyst in to-day's Greece, all my moral support!)
I do not want to look as an old "maitre d'ecole", but the question that ...

Of course, Enschede is a bit far away from Leiden, but next time that you go to this beautiful city pay a visit to the Museum NNM Naturalis (to my taste one of the best of its kind in Europa). Then yo ...

I'm not familiar with that area in CA but just to give this material a general name, I'd say it a type of jasper. (Assuming that it is quite hard, indicating a silicified quartz-rich rock; which I as ...

For beryl (not only aquamarine!) etching, the fluorine track is most probaly good. For those who want to go a bit deeper, see the work of B. Moine et al. on Madagascar emerald deposits (C.R. Geoscienc ...

From my experience, very tedious to reconstruct 3D-photographic images (elaborate softwares do exist, but they are really professional). But remember that drawings are very easy, quite sufficient for ...

Cloudy quartz is a classic in fluid inclusion literature (in French, as atmospheric terms (nuageux, brouillardeux) do not sound very well, we prefer to call it "milky" (laiteux). If you want ...

Hi, I never heard about this name (foete) for a tourmaline, even if I might suspect some Afrikaans (or Dutch) connotation (foot, meaning the end of the crystal). Anyway, I believe that I see rather cl ...

We were not able to attend the Sainte Marie Show this year, therefore I have particularly appreciated Jordi's reports:
https://www.fabreminerals.com/expo/Sainte-Marie/2008/mineral-specimens-Sainte-Ma ...

Reply to John's comment:
There is no need to elaborate on partial arguments (as long as it is not possible to see within the crystal, eventually with the help of techniques which could improve the ob ...

Hi everybody!

After discussions in Tucson with Jordi, I might give the point of view of an inclusionist on this shape, always spectacular but not so infrequent in many alpine clefts (do not forget ...

Author	Message
Topic: Faden amethyst crystals?
jacquestouret Replies: 12 Views: 29764	Forum: Minerals and Mineralogy Posted: May 06, 2010 04:28 Subject: Re: Faden amethyst crystals?
jacquestouret Replies: 12 Views: 29764	Hi Tasos (Good to see that you still have the time to worry about amethyst in to-day's Greece, all my moral support!) I do not want to look as an old "maitre d'ecole", but the question that ...
Topic: Dutch minerals.
jacquestouret Replies: 5 Views: 10994	Forum: Minerals and Mineralogy Posted: Apr 12, 2010 08:32 Subject: Re: Dutch minerals.
jacquestouret Replies: 5 Views: 10994	Of course, Enschede is a bit far away from Leiden, but next time that you go to this beautiful city pay a visit to the Museum NNM Naturalis (to my taste one of the best of its kind in Europa). Then yo ...
Topic: Odd inclusions in an unidentified mineral
jacquestouret Replies: 5 Views: 12209	Forum: Minerals and Mineralogy Posted: Mar 30, 2010 10:45 Subject: Re: Odd inclusions in an unidentified mineral
jacquestouret Replies: 5 Views: 12209	I'm not familiar with that area in CA but just to give this material a general name, I'd say it a type of jasper. (Assuming that it is quite hard, indicating a silicified quartz-rich rock; which I as ...
Topic: Aquamarine and Etching
jacquestouret Replies: 11 Views: 25515	Forum: Minerals and Mineralogy Posted: Mar 19, 2010 09:08 Subject: Re: Aquamarine and Etching
jacquestouret Replies: 11 Views: 25515	For beryl (not only aquamarine!) etching, the fluorine track is most probaly good. For those who want to go a bit deeper, see the work of B. Moine et al. on Madagascar emerald deposits (C.R. Geoscienc ...
Topic: How keep two points at different depths in focus?
jacquestouret Replies: 15 Views: 21568	Forum: Micros & Macros - Images of Minerals Posted: Mar 01, 2010 12:00 Subject: Re: How keep two points at different depths in focus?
jacquestouret Replies: 15 Views: 21568	From my experience, very tedious to reconstruct 3D-photographic images (elaborate softwares do exist, but they are really professional). But remember that drawings are very easy, quite sufficient for ...
Topic: Cloudy Quartz
jacquestouret Replies: 6 Views: 11377	Forum: Minerals and Mineralogy Posted: Feb 23, 2010 06:14 Subject: Re: Cloudy Quartz
jacquestouret Replies: 6 Views: 11377	Cloudy quartz is a classic in fluid inclusion literature (in French, as atmospheric terms (nuageux, brouillardeux) do not sound very well, we prefer to call it "milky" (laiteux). If you want ...
Topic: Unfamiliar with this mineral term - can anyone help?
jacquestouret Replies: 14 Views: 70041	Forum: Minerals and Mineralogy Posted: Mar 31, 2009 08:05 Subject: Re: Unfamiliar with this mineral term - can anyone help?
jacquestouret Replies: 14 Views: 70041	Hi, I never heard about this name (foete) for a tourmaline, even if I might suspect some Afrikaans (or Dutch) connotation (foot, meaning the end of the crystal). Anyway, I believe that I see rather cl ...
Topic: The show should remains in Sainte Marie.
jacquestouret Replies: 0 Views: 6559	Forum: Mineral Shows Posted: Jul 05, 2008 08:24 Subject: The show should remains in Sainte Marie.
jacquestouret Replies: 0 Views: 6559	We were not able to attend the Sainte Marie Show this year, therefore I have particularly appreciated Jordi's reports: https://www.fabreminerals.com/expo/Sainte-Marie/2008/mineral-specimens-Sainte-Ma ...
Topic: Curved crystals
jacquestouret Replies: 22 Views: 82424	Forum: The Ten Thousand Club Posted: Apr 04, 2007 10:21 Subject: curved crystals (quartz) (Jacques Touret, Ecole des Mines)
jacquestouret Replies: 22 Views: 82424	Reply to John's comment: There is no need to elaborate on partial arguments (as long as it is not possible to see within the crystal, eventually with the help of techniques which could improve the ob ...
Topic: Curved crystals
jacquestouret Replies: 22 Views: 82424	Forum: The Ten Thousand Club Posted: Apr 03, 2007 05:33 Subject: Curved crystals (quartz) (Jacques Touret, Ecole des Mines)
jacquestouret Replies: 22 Views: 82424	Hi everybody! After discussions in Tucson with Jordi, I might give the point of view of an inclusionist on this shape, always spectacular but not so infrequent in many alpine clefts (do not forget ...