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Newest topics and users posts
02 Jul-16:04:59 The mizunaka collection - spessartine (Am Mizunaka)
02 Jul-14:07:28 Re: collection of michael shaw (Michael Shaw)
02 Jul-13:38:52 Cuprite on calcite from congo d. R. / #mvm (minerals - virtual museum) collection (Jordi Fabre)
02 Jul-10:23:30 Re: libyan desert glass structure (Craig Hagstrom)
02 Jul-10:06:48 Re: libyan desert glass structure (Marco Campos-venuti)
02 Jul-09:29:48 Re: libyan desert glass structure (Craig Hagstrom)
02 Jul-09:12:17 Re: libyan desert glass structure (Marco Campos-venuti)
02 Jul-09:02:38 Re: libyan desert glass structure (Craig Hagstrom)
02 Jul-08:49:56 Re: libyan desert glass structure (Marco Campos-venuti)
02 Jul-06:09:25 Re: libyan desert glass structure (James Catmur)
01 Jul-14:47:07 Re: libyan desert glass structure (Alfredo)
01 Jul-09:55:00 Re: libyan desert glass structure (Craig Hagstrom)
01 Jul-05:05:41 Re: libyan desert glass structure (Roger Warin)
01 Jul-01:07:57 The mizunaka collection - elbaite (Am Mizunaka)
30 Jun-21:33:59 Re: some rare phosphates from the democratic republic of congo and zimbabwe (Roger Warin)
30 Jun-14:52:04 Re: libyan desert glass structure (Craig Hagstrom)
30 Jun-14:39:38 Re: libyan desert glass structure (Marco Campos-venuti)
30 Jun-13:55:05 Re: tourmaline namibia? (Izak)
30 Jun-13:07:14 Re: libyan desert glass structure (Craig Hagstrom)
30 Jun-12:24:05 Re: libyan desert glass structure (Marco Campos-venuti)
30 Jun-12:07:00 Re: gwindel skutterudite? (Marco Campos-venuti)
30 Jun-11:52:28 Re: libyan desert glass structure (Craig Hagstrom)
30 Jun-08:17:07 Re: collection of michael shaw (Michael Shaw)
30 Jun-07:28:28 Re: the mim museum in beirut, lebanon (Mim Museum)
30 Jun-03:02:46 Re: some rare phosphates from the democratic republic of congo and zimbabwe (Knut Eldjarn)

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  Topic: Colors of minerals
Bergur_E_Sigurdarson

Replies: 7
Views: 6414

PostForum: Minerals and Mineralogy   Posted: Sep 17, 2024 09:40   Subject: Re: Colors of minerals
I've not noticed much disparity in how people express green vs blue, nor red vs orange
....the one I very regularly notice is people calling fairly obviously pink things either blue or purple.
I won ...
  Topic: Tucson 2024 - It's started!
Bergur_E_Sigurdarson

Replies: 84
Views: 64374

PostForum: News about Shows   Posted: Feb 17, 2024 17:36   Subject: Re: Tucson 2024 - It's started!
Number 8 in the series of "Barite World Tour" cases entered annually by Bill and Diana Dameron covers Latin America - mainly Mexico and Peru as most other nations in Latin America are devoid ...
  Topic: Iron cross twinned Pyrites from Gachalá or from Ubalá?
Bergur_E_Sigurdarson

Replies: 10
Views: 10335

PostForum: What is it? - Where is it from?   Posted: Dec 31, 2023 10:38   Subject: Re: Iron cross twinned Pyrites from Gachalá or from Ubalá?
I agree with Gerard,
all my better sources say that the iron cross twins come from the El Santuario mine or minor diggings near it and thus not Gachala municipality but Ubala.
One close by is La Mer ...
  Topic: Caring Collection
Bergur_E_Sigurdarson

Replies: 3
Views: 19601

PostForum: Conserving, Preparing and Cleaning Minerals   Posted: Aug 14, 2023 10:17   Subject: Re: Caring Collection
Two brand new members, one posting a suspicious link on an OP with generic info
...anyone else find this weird?
  Topic: A poll on mindat group in FB
Bergur_E_Sigurdarson

Replies: 6
Views: 15484

PostForum: Off-Topic and Introductions   Posted: Jul 27, 2023 16:35   Subject: Re: A poll on mindat group in FB
My poll on Mindat FB page got a decent amount of participation.

I must admit I'm a little bit surprised that not more people are members of that group from here and amongst collectors in general.
...
  Topic: A poll on mindat group in FB
Bergur_E_Sigurdarson

Replies: 6
Views: 15484

PostForum: Off-Topic and Introductions   Posted: Jul 17, 2023 19:50   Subject: A poll on mindat group in FB
Earlier I created a poll on the FB group for Mindat.
(Seemed the best place to put it)

While its intention isn't very serious, anymore than any other FB-poll....
I thought it would be ok to share ...
  Topic: Sainte-Marie-aux-Mines 2023
Bergur_E_Sigurdarson

Replies: 41
Views: 58827

PostForum: News about Shows   Posted: Jun 20, 2023 22:13   Subject: Re: Sainte-Marie-aux-Mines 2023
My only (so far) visit to Ste. Marie mineral show was in 2019.
I flew in from Iceland, to Frankfurt, though I was staying with friends near Freiburg in Germany and drove in on a rental car each day. ...
  Topic: Collection of Bergur E. Sigurdarson
Bergur_E_Sigurdarson

Replies: 58
Views: 88665

PostForum: Collection photos and Collector's page   Posted: Jun 07, 2023 17:53   Subject: Collection of Bergur E. Sigurdarson
A partially "cleaned" group of fluorites from Peñas Blancas.

In some parts of the veins they're extracting from, it's evident that a lot has moved geologically. Breaking Fluorites off of ...
  Topic: Collection of Bergur E. Sigurdarson
Bergur_E_Sigurdarson

Replies: 58
Views: 88665

PostForum: Collection photos and Collector's page   Posted: Jun 07, 2023 17:51   Subject: Collection of Bergur E. Sigurdarson
Most of the fluorite known from Colombia comes from an area above the area where they are mining for emeralds in Peñas Blancas and seems to be in veins that have since then coated most of it in aragon ...
  Topic: Does Citrine Occur Naturally as a Geode?
Bergur_E_Sigurdarson

Replies: 11
Views: 19797

PostForum: Incorrect classification and fakes   Posted: May 25, 2023 12:29   Subject: Re: Does Citrine Occur Naturally as a Geode?
On the variations of language... as has been mentioned with Spanish... here in Colombia (and surely Firmo can verify) ...the most common reference isn't to a "geoda"... but rather "veta ...
  Topic: Collection of Philippe Durand
Bergur_E_Sigurdarson

Replies: 360
Views: 449206

PostForum: Collection photos and Collector's page   Posted: Apr 09, 2023 19:24   Subject: Re: Collection of Philippe Durand
As some additional support for Bergur's thoughts - one of the main dealers who handeles these mango quartzes lost a ton of money by leaving them in oxalic for too long - the acid slowly cleaned out th ...
  Topic: Collection of Philippe Durand
Bergur_E_Sigurdarson

Replies: 360
Views: 449206

PostForum: Collection photos and Collector's page   Posted: Apr 09, 2023 17:10   Subject: Re: Collection of Philippe Durand
I have several pieces of Colombian quartz that would fall under the inclusion mentioned.

Most have "micro-tubes" along the quartz.
And usually, if they are not just "white" ... ...
  Topic: Tucson Shows 2023 - let the fun begin
Bergur_E_Sigurdarson

Replies: 77
Views: 86290

PostForum: News about Shows   Posted: Feb 16, 2023 16:16   Subject: Re: Tucson Shows 2023 - let the fun begin
P.S. as I forgot my point on inflation... in this case not in general (as possibly being a good reason to ask for higher entry fee) but rather the mineral specimens.

Yes, the best specimens are oft ...
  Topic: Tucson Shows 2023 - let the fun begin
Bergur_E_Sigurdarson

Replies: 77
Views: 86290

PostForum: News about Shows   Posted: Feb 16, 2023 15:47   Subject: Re: Tucson Shows 2023 - let the fun begin
As usual, enjoyed the reports of what was to be seen as I couldn't attend myself.. .thanks!

On the end subject, as has come up in the past years, about missing dealers and lower sales....
...many ...
  Topic: Collection of Fiebre Verde
Bergur_E_Sigurdarson

Replies: 746
Views: 3376723

PostForum: Collection photos and Collector's page   Posted: Jan 07, 2023 17:42   Subject: Re: Collection of Fiebre Verde
I agree that with the form of the crystals that they are highly likely to be from Chivor (given my limited knowledge) I do also wonder if the micro crystals present aren't only calcite, but also micro ...
 
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