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Newest topics and users posts
29 Jun-22:23:47 Re: the mizunaka collection - calcite (Am Mizunaka)
29 Jun-13:51:52 Schorl - silvia's collection (Silvia)
29 Jun-13:46:28 Re: the mizunaka collection - calcite (Silvia)
29 Jun-08:43:48 Re: red fluorescence in fluorite (Bob Carnein)
29 Jun-00:30:37 Re: the mizunaka collection - calcite (Am Mizunaka)
28 Jun-22:32:49 Re: the mizunaka collection (Roger Warin)
28 Jun-21:23:29 The mizunaka collection - calcite (Am Mizunaka)
28 Jun-17:51:25 Re: red fluorescence in fluorite (Josele)
28 Jun-15:41:11 Re: backlighting specimens (Firmo Espinar)
28 Jun-15:11:34 Re: backlighting specimens (Firmo Espinar)
28 Jun-08:55:58 Re: backlighting specimens (James Catmur)
28 Jun-08:48:12 Re: backlighting specimens (Firmo Espinar)
28 Jun-06:09:28 Sainte-marie-aux-mines 2022 - an exceptional edition (Jordi Fabre)
28 Jun-03:13:43 Re: quartz confusion (Duncan Miller)
27 Jun-15:03:22 Re: quartz confusion (Peter Megaw)
27 Jun-13:54:09 Quartz confusion (Nirvash Heera)
27 Jun-13:01:43 Re: collection of michael shaw (Michael Shaw)
27 Jun-10:38:37 Re: red fluorescence in fluorite (Bob Carnein)
27 Jun-07:43:48 Re: unknown garnet (Roger Warin)
27 Jun-03:54:07 Re: red fluorescence in fluorite (James Catmur)
26 Jun-20:00:13 Re: unknown garnet (Matt_zukowski)
26 Jun-17:58:07 Re: red fluorescence in fluorite (Bob Carnein)
26 Jun-17:50:27 Re: unknown garnet (Bob Carnein)
26 Jun-14:53:06 Re: unknown garnet (Riccardo Modanesi)
26 Jun-14:06:50 Re: red fluorescence in fluorite (James Catmur)

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  Topic: Please help ID, maybe pyrite?
vic rzonca

Replies: 4
Views: 402

PostForum: What is it? - Where is it from?   Posted: Jun 22, 2022 13:12   Subject: Re: Please help ID, maybe pyrite?
Goethite after pyrite.
  Topic: what stones are these?
vic rzonca

Replies: 15
Views: 4561

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Mar 23, 2021 09:39   Subject: Re: what stones are these?
I should have said a carbonate.
  Topic: what stones are these?
vic rzonca

Replies: 15
Views: 4561

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Mar 23, 2021 08:31   Subject: Re: what stones are these?
Limestone.
  Topic: Quartz-like but not quite, help needed.
vic rzonca

Replies: 3
Views: 2245

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Feb 12, 2021 09:03   Subject: Re: Quartz-like but not quite, help needed.
Fluorite.
  Topic: Tucson 2021
vic rzonca

Replies: 2
Views: 5952

PostForum: Mineral Shows   Posted: Oct 22, 2020 19:34   Subject: Tucson 2021
http://www.pima.gov/health
(link normalized by FMF)

If you're interested in what's up with the Tucson Show, go to this site and search "Application for special events over 50 attendees". ...
  Topic: Collecting quartz on the Little Falls dolostone
vic rzonca

Replies: 128
Views: 161668

PostForum: Mines and Mineral Localities   Posted: Oct 04, 2020 15:53   Subject: Re: Collecting quartz on the Little Falls dolostone
Sanest place to be is on the Ridge, beating the devil out of the dolostone. Here's what he left behind.
  Topic: Mineral Collections of Brazil
vic rzonca

Replies: 14
Views: 7874

PostForum: Mineralogical Literature   Posted: Oct 04, 2020 15:08   Subject: Re: Mineral Collections of Brazil
The new publication on Brazilian collectors and collections. I'm waiting for my copy, signed and hand delivered to me in Tucson, by one of the collectors covered. So, La Dee Da! And to reiterate, ther ...
  Topic: Mineral Collections of Brazil
vic rzonca

Replies: 14
Views: 7874

PostForum: Mineralogical Literature   Posted: Oct 04, 2020 13:36   Subject: Re: Mineral Collections of Brazil
There is an English version. Your inquiry allows me to recommend another book by the same authors. Riveting for any collector.
  Topic: Need help on cleaning a specimen
vic rzonca

Replies: 7
Views: 7813

PostForum: Conserving, Preparing and Cleaning Minerals   Posted: Oct 03, 2020 13:23   Subject: Re: Need help on cleaning a specimen
Most of the Brazilian "citrine" starts out as inferior amethyst that is heated to bring out the orange color. The coating is another generation of quartz. Short of advanced acid etching tech ...
  Topic: Calcite ?
vic rzonca

Replies: 7
Views: 3204

PostForum: What is it? - Where is it from?   Posted: Aug 16, 2020 10:34   Subject: Re: Calcite ?
Thank you all for your answer. I tried with the lemon in the back where it's like the front without success but maybe I haven't done correctly. In the back, the whiter part seems to be Chalk (1 in th ...
  Topic: Calcite ?
vic rzonca

Replies: 7
Views: 3204

PostForum: What is it? - Where is it from?   Posted: Aug 09, 2020 11:27   Subject: Re: Calcite ?
Dany, you might try an acid test on a bit of the unknown, possibly scraped from an in-obvious place. Put a few drops of lemon juice on it. If it fizzes, combined with the location, would indicate lime ...
  Topic: Stay at home - Coronavirus / Covid-19
vic rzonca

Replies: 364
Views: 172669

PostForum: National Library of Spain / Biblioteca Nacional de España (BNE) and FMF   Posted: Aug 02, 2020 20:02   Subject: Re: Stay at home - Coronavirus / Covid-19
Not a good idea to be out in the field with pointy bars sticking out of a sack full of steel. So, the Faraday cage of the control shack seemed like a good idea.
  Topic: Is this Calcite or Dolomite
vic rzonca

Replies: 8
Views: 3628

PostForum: What is it? - Where is it from?   Posted: Jul 31, 2020 07:10   Subject: Re: Is this Calcite or Dolomite
Both are carbonates. Calcite is calcium carbonate, dolomite is calcium magnesium carbonate. I'm not sure I've answered the question you've asked.
  Topic: Sodium Dithonite, Waller solution, Oxalic acid or HCl
vic rzonca

Replies: 9
Views: 7930

PostForum: Conserving, Preparing and Cleaning Minerals   Posted: Jul 21, 2020 09:54   Subject: Re: Sodium Dithonite, Waller solution, Oxalic acid or HCl
It speeds the process if you warm the Super Iron Out. Contains Sodium Hydrosulfite and Sodium Metabisulfite. Always use any chemical with care. The two quartz samples are from the same pocket, one unc ...
  Topic: Newest Specimen
vic rzonca

Replies: 12
Views: 5588

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Jun 30, 2020 05:37   Subject: Re: Newest Specimen
Location is always relevant.
  Topic: Newest Specimen
vic rzonca

Replies: 12
Views: 5588

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Jun 29, 2020 06:57   Subject: Re: Newest Specimen
It looks like slag to me, but only a guess.
  Topic: Stay at home - Coronavirus / Covid-19
vic rzonca

Replies: 364
Views: 172669

PostForum: National Library of Spain / Biblioteca Nacional de España (BNE) and FMF   Posted: Jun 11, 2020 07:04   Subject: Re: Stay at home - Coronavirus / Covid-19
Took a float on Raquette Lake, North Country, NY.
  Topic: Stay at home - Coronavirus / Covid-19
vic rzonca

Replies: 364
Views: 172669

PostForum: National Library of Spain / Biblioteca Nacional de España (BNE) and FMF   Posted: May 31, 2020 10:50   Subject: Re: Stay at home - Coronavirus / Covid-19
One of the things that keeps us busy while having to remain at home is our music. Some of you might remember Joan and I playing on the lawn in front of our sales room at the Inn Suites during the Tucs ...
  Topic: Stay at home - Coronavirus / Covid-19
vic rzonca

Replies: 364
Views: 172669

PostForum: National Library of Spain / Biblioteca Nacional de España (BNE) and FMF   Posted: May 31, 2020 10:29   Subject: Re: Stay at home - Coronavirus / Covid-19
The Holyoke Traps.
  Topic: Late 20th Century Wulfenite Collecting in the San Francisco Mine, Sonora, Mexico - (30)
vic rzonca

Replies: 15
Views: 11811

PostForum: Featured Columns of FMF   Posted: May 03, 2020 09:26   Subject: Re: Late 20th Century Wulfenite Collecting in the San Francisco Mine, Sonora, Mexico - (30
Great work Tony. Brings the legends down to earth, and making the adventures more legendary.
 
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