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Newest topics and users posts
23 Sep-16:40:43 Re: help me please, sounds like metal (Lou B.)
23 Sep-15:44:45 Re: help me please, sounds like metal (Matt_zukowski)
23 Sep-15:39:10 Re: a mineralogical trip through italy by sante celiberti (Sante Celiberti)
23 Sep-14:07:51 Re: help me please, sounds like metal (Lou B.)
23 Sep-12:14:03 Re: collection of michael shaw (Michael Shaw)
23 Sep-11:59:49 Re: is there proof of kobyashevite fakes? (Dan Kniffin)
23 Sep-11:58:33 Re: is there proof of kobyashevite fakes? (Dan Kniffin)
23 Sep-11:13:22 Re: help me please, sounds like metal (Lou B.)
23 Sep-10:57:52 Re: help me please, sounds like metal (Lou B.)
23 Sep-10:56:34 Re: help me please, sounds like metal (Vinoterapia)
23 Sep-10:54:18 Re: help me please, sounds like metal (Roger Warin)
23 Sep-10:21:42 Re: possible fake: blue hemimorphite from ojuela (Daniel Peters)
23 Sep-10:16:53 Re: help me please, sounds like metal (Bob Harman)
23 Sep-09:03:38 Re: possible fake: blue hemimorphite from ojuela (James Bennet)
23 Sep-08:45:28 Re: help me please, sounds like metal (Vinoterapia)
23 Sep-07:53:27 Re: help me please, sounds like metal (Peter Lemkin)
23 Sep-07:44:36 Re: help me please, sounds like metal (Bob Morgan)
23 Sep-07:37:03 Re: help me please, sounds like metal (Lou B.)
23 Sep-00:02:26 Re: help me please, sounds like metal (Roger Warin)
22 Sep-23:36:59 The mizunaka collection - rhodochrosite (Am Mizunaka)
22 Sep-19:06:59 Re: help me please, sounds like metal (Lou B.)
22 Sep-18:59:00 Re: help me please, sounds like metal (Pete Richards)
22 Sep-18:53:18 Re: help me please, sounds like metal (Lou B.)
22 Sep-18:34:16 Re: help me please sounds like metal (Lou B.)
22 Sep-18:21:17 Re: help me please sounds like metal (Bob Harman)

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  Topic: New technology for crystal models
Josele

Replies: 3
Views: 1135

PostForum: Off-Topic and Introductions   Posted: Jul 07, 2020 17:55   Subject: Re: New technology for crystal models
In Spanish FMF there is a thread about these crystal models: Modelos cristalográficos
(If you are not comfortable with Spanish can use Google translator at top left of the page)
  Topic: Tourmaline
Josele

Replies: 16
Views: 2191

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Jul 05, 2020 19:44   Subject: Re: Tourmaline
And the two poles are different.
Not necessarily. Although tourmaline belongs to 3m class of the trigonal system and does not have a symmetry center nor symmetry plane perpendicular to the c-axis, it ...
  Topic: Tourmaline
Josele

Replies: 16
Views: 2191

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Jul 05, 2020 09:04   Subject: Re: Tourmaline
... I don't have a goniometer, and if I had one, it would be difficult to use since the specimen is glued on an acrylic display base. ... The specimen seems to be glued with thermal silicone. If this ...
  Topic: Tourmaline
Josele

Replies: 16
Views: 2191

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Jul 02, 2020 16:14   Subject: Re: Tourmaline
Another vote for tourmaline from Malkhan pegmatite field. This dark purple color is typical from this location.
  Topic: Complex calcite
Josele

Replies: 7
Views: 1536

PostForum: Minerals and Mineralogy   Posted: Jun 25, 2020 05:09   Subject: Re: Complex calcite
Pete, thank you very much for your help. That's more than an elaborate response, it is a master class lesson! It's amazing your ability to draw conclusions from a few simple and imprecise data. A plea ...
  Topic: Complex calcite
Josele

Replies: 7
Views: 1536

PostForum: Minerals and Mineralogy   Posted: Jun 24, 2020 07:14   Subject: Re: Complex calcite
Thank you Bob, you are always ready to help.

At the moment I have not a program to deal with crystals. It's long time ago that I miss this kind of application.
  Topic: Complex calcite
Josele

Replies: 7
Views: 1536

PostForum: Minerals and Mineralogy   Posted: Jun 23, 2020 19:18   Subject: Complex calcite
A few weeks ago I received a calcite crystal on dolomite from La Florida mining area (Spain). The crystal shows faces of a polyhedron combination: flat rhombohedron, scalenohedron, prism, “normal” rho ...
  Topic: Habit restriction of garnets
Josele

Replies: 13
Views: 4042

PostForum: Minerals and Mineralogy   Posted: Jun 13, 2020 17:18   Subject: Re: Habit restriction of garnets
Thank you Pete and Steve. Asking is always easier than answering. But often for the asker (me in this case!) the problem is understanding the smart responses.
This garnet issue has always puzzled me ...
  Topic: Habit restriction of garnets
Josele

Replies: 13
Views: 4042

PostForum: Minerals and Mineralogy   Posted: Jun 13, 2020 09:25   Subject: Habit restriction of garnets
Although they belong to the isometric system holohedral class (hexaoctahedral) and although they occur in a variety of rocks with diverse pressure and temperature conditions of formation, garnets habi ...
  Topic: Rose Quartz, Morganite or other?
Josele

Replies: 9
Views: 1722

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: May 20, 2020 16:22   Subject: Re: Rose Quartz, Morganite or other?
Hola Andreu, welcome to FMF.
Some pics seem show cleavage planes and others show conchoidal fracture...
Without reconocible faces is hard to say what it could be.
Do you know the locality of origin ...
  Topic: Natural Blue Topaz w/ Multiple Tiny Unknown Mineral Inclusions
Josele

Replies: 4
Views: 1115

PostForum: What is it? - Where is it from?   Posted: May 16, 2020 08:57   Subject: Re: Natural Blue Topaz w/ Multiple Tiny Unknown Mineral Inclusions
To my understanding, epidote, diopside and galena are not species that one expect to find in a pegmatite.
The green one, could not be elbaite?
  Topic: Ice, H2O in Alaska
Josele

Replies: 1
Views: 1339

PostForum: Micros & Macros - Images of Minerals   Posted: May 11, 2020 07:16   Subject: Re: Ice, H2O in Alaska
Under certain conditions of humidity and temperature, fog crystallizes forming aggregates on the previous snowed surface, like in these pics:
  Topic: Red fluorescence in Fluorite
Josele

Replies: 6
Views: 2004

PostForum: Minerals and Mineralogy   Posted: May 05, 2020 16:21   Subject: Re: Red fluorescence in Fluorite
Berbes sample with a moderated blue fluorescence concentrated at the edges and a slight red fluorescence in some interior layers:
  Topic: Mines active for mineral specimens only
Josele

Replies: 9
Views: 6613

PostForum: Mines and Mineral Localities   Posted: Apr 04, 2020 11:07   Subject: Re: Mines active for mineral specimens only
David, with very few exceptions you can add all the hundreds of single locations in Afghanistan and Pakistan listed in Mindat, most of them working on pegmatite minerals but also for metamorphic and a ...
  Topic: Variscite? Turquoise?
Josele

Replies: 15
Views: 6853

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Feb 04, 2020 14:19   Subject: Re: Tortoise Variscite? Spiderweb Turqoise?
... I’m not sure if I understand fully - are you saying you think these are not all the same material? ...Hello, Joe, no, I meant the black one, your samples are rocks (mix of minerals), metamorphic r ...
  Topic: Variscite? Turquoise?
Josele

Replies: 15
Views: 6853

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Feb 04, 2020 13:45   Subject: Re: Tortoise Variscite? Spiderweb Turqoise?
Hello X (sorry I don't know your name), welcome to FMF.

When asking for identification should provide the maximum of additional data, as is stated in the introduction thread of this section: Asking ...
  Topic: Help to identify this rock, please
Josele

Replies: 4
Views: 4196

PostForum: What is it? - Where is it from?   Posted: Feb 02, 2020 16:13   Subject: Re: Help to identify this rock, please
Could be a mafic igneous rock, gabbro type for example.

As said, without proper analysis is not possible to classify a rock with precision.

Bob gives a good clue with the geological map when it ...
  Topic: A giant Vanadinite
Josele

Replies: 4
Views: 9642

PostForum: Micros & Macros - Images of Minerals   Posted: Jan 20, 2020 18:38   Subject: Re: A giant Vanadinite
Wow!
Hexagons are more than one inch big! It must feel very heavy in hand!
A world class piece, best I've ever seen.
Thanks for sharing it.
  Topic: New to the site ! Beginner trying to identify.
Josele

Replies: 2
Views: 3710

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Jan 18, 2020 12:50   Subject: Re: New to the site ! Beginner trying to identify.
Hello Elana, welcome to FMF.
Identification requests should be accompanied with some additional data. Please read Asking: "What is this? / Where is it from?" and give us the maximum of info ...
  Topic: Charcas - Pink Mineral
Josele

Replies: 10
Views: 5020

PostForum: What is it? - Where is it from?   Posted: Jan 18, 2020 06:16   Subject: Re: Charcas - Pink Mineral
How misleading can be a mineral photo, last one could be confused with globular chalcedony from Mamuju, Indonesia!
 
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