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Newest topics and users posts
28 Mar-18:25:15 Re: collection of firmo espinar (Firmo Espinar)
28 Mar-09:37:50 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Cfrench58)
27 Mar-19:47:08 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Pete Richards)
27 Mar-16:15:44 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Cfrench58)
27 Mar-15:18:59 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Alfredo)
27 Mar-14:39:29 2 unknowns co-occurring with caledonite, grand reef mine, az (Cfrench58)
27 Mar-05:21:48 Re: the mim museum in beirut, lebanon (Mim Museum)
27 Mar-05:03:26 Re: trying to find information on rose/pink quartz and tourmaline associations. (Ning)
27 Mar-02:39:50 Re: the mim museum in beirut, lebanon (Tobi)
27 Mar-00:23:28 Re: collection of volkmar stingl (Volkmar Stingl)
26 Mar-00:53:41 Re: collection of volkmar stingl (Volkmar Stingl)
25 Mar-13:32:10 Re: collection of michael shaw (Michael Shaw)
25 Mar-00:25:58 The mizunaka collection - quartz (Am Mizunaka)
23 Mar-13:35:22 Re: collection of firmo espinar (Firmo Espinar)
22 Mar-08:32:28 Re: collection of michael shaw (Michael Shaw)
22 Mar-04:20:41 Re: the mim museum in beirut, lebanon (Mim Museum)
21 Mar-22:49:19 Re: green seam. Looks like it in a state of decay. (Ning)
21 Mar-22:47:40 Re: green seam. Looks like it in a state of decay. (Ning)
21 Mar-22:45:25 Re: green seam. Looks like it in a state of decay. (Ning)
21 Mar-15:34:23 Re: the mizunaka collection - quartz (Am Mizunaka)
21 Mar-14:35:08 Re: jim’s mineral collection (Jim Wilkinson)
21 Mar-14:15:36 The 4th phoenix heritage mineral show (phms) hosted by mineralogical society of arizona (m (Chris Whitney-smith)
21 Mar-04:36:10 Re: the mizunaka collection (Tobi)
21 Mar-04:11:47 Re: jim’s mineral collection (James Catmur)
20 Mar-23:34:15 The mizunaka collection - quartz (Am Mizunaka)

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  Topic: Iron cross twinned Pyrites from Gachalá or from Ubalá?
John S. White

Replies: 10
Views: 3989

PostForum: What is it? - Where is it from?   Posted: Jan 01, 2024 11:56   Subject: Re: Iron cross twinned Pyrites from Gachalá or from Ubalá?
These twins are remarkable, in part for their consistent perfection and also for their great abundance. I am not aware of any other occurrence that even begins to match this one. I was fortunate to ...
  Topic: Best wishes / 2023-2024!
John S. White

Replies: 16
Views: 7088

PostForum: Comments & Suggestions   Posted: Dec 24, 2023 11:51   Subject: Re: Best wishes / 2023-2024!
Ditto to all of the above!

John White
  Topic: Barcelona Museum - Folch collection
John S. White

Replies: 10
Views: 19979

PostForum: The Folch Collection   Posted: Nov 29, 2023 14:05   Subject: Re: Barcelona Museum - Folch collection
I believe that the Folch mineral collection has not been sold. And I might add that Folch's daughter had a collection of antique musical instruments. A family of collectors!
  Topic: Curating your collection
John S. White

Replies: 11
Views: 6235

PostForum: Conserving, Preparing and Cleaning Minerals   Posted: Nov 18, 2023 11:01   Subject: Re: Curating your collection
Well stated Roger. The only consideration with donating a mineral collection to a museum is attempting to gain assurance that the museum is worthy of receiving the collection. Is the museum currently ...
  Topic: Who is coming to Mineralientage?
John S. White

Replies: 20
Views: 18221

PostForum: Mineral Shows   Posted: Sep 24, 2023 11:04   Subject: Re: Who is coming to Mineralientage?
Sorry I can't offer any advice except that the Italian restaurants near the Bonhof are not your best bet. Try Googling Italian restaurants with truffle dishes.
  Topic: Who is coming to Mineralientage?
John S. White

Replies: 20
Views: 18221

PostForum: Mineral Shows   Posted: Sep 16, 2023 10:27   Subject: Re: Who is coming to Mineralientage?
Well, I must say thank you very much Roger for the photos. I recall meeting you and posing with you. And I love the wonderful photo of Alfredo and Jordi. We will miss Jordi terribly, And, of course, ...
  Topic: Who is coming to Mineralientage?
John S. White

Replies: 20
Views: 18221

PostForum: Mineral Shows   Posted: Sep 15, 2023 09:44   Subject: Re: Who is coming to Mineralientage?
Hi James:

Sorry I came down on you hard. I completely misread the tone of your message.

John
  Topic: Who is coming to Mineralientage?
John S. White

Replies: 20
Views: 18221

PostForum: Mineral Shows   Posted: Sep 15, 2023 05:51   Subject: Re: Who is coming to Mineralientage?
I am very surprised at James's comment. He makes it sound as though he feels it isn't worth going to. How sad. The Munich Show is by far the most extraordinary mineral exposition one can imagine. ...
  Topic: Inclusions of spiral or helical growth and screw dislocations - (0)
John S. White

Replies: 49
Views: 143222

PostForum: Featured Columns of FMF   Posted: Jul 04, 2023 09:00   Subject: Re: Inclusions of spiral or helical growth and screw dislocations - (0)
I should say that the inclusions in beryl photo I posted seem to be atypical. Those in a topaz from Mason County, Texas, are far more typical. See attached photo.
  Topic: Inclusions of spiral or helical growth and screw dislocations - (0)
John S. White

Replies: 49
Views: 143222

PostForum: Featured Columns of FMF   Posted: Jul 04, 2023 08:52   Subject: Re: Inclusions of spiral or helical growth and screw dislocations - (0)
I no longer have my collection of crystals with spiral inclusions but it consisted of three beryls, six spodumenes and seven topazes. Under high magnification one can see that at least one of them, a ...
  Topic: Inclusions of spiral or helical growth and screw dislocations - (0)
John S. White

Replies: 49
Views: 143222

PostForum: Featured Columns of FMF   Posted: Jul 03, 2023 05:44   Subject: Re: Inclusions of spiral or helical growth and screw dislocations - (0)
I must take issue with two comments by Mr. Carnein in his post with the photos of a topaz crystal with helical inclusions. I do not believe the inclusions are "fractures." Instead I believ ...
  Topic: About the tourmaline twin
John S. White

Replies: 6
Views: 5965

PostForum: Minerals and Mineralogy   Posted: Jan 07, 2023 07:18   Subject: Re: About the tourmaline twin
I see no reason to suggest that the pair of crystals in the photo are twinned. In fact I do not believe that tourmaline is known to twin.
  Topic: Is this red quartz - purple fluorite specimen from Spain?
John S. White

Replies: 5
Views: 4285

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 26, 2022 10:32   Subject: Re: Is this red quartz - purple fluorite specimen from Spain?
The new issue of Rocks & Minerals has an article on iron-bearing (ferruginous) quartz by Dr. Carl Francis. One of the photos is ferruginous quartz on purple fluorite from Wolsendorf, Bavaria, Ger ...
  Topic: Find of Wulfenite in the El Centenillo mine, Granada
John S. White

Replies: 1
Views: 6709

PostForum: Mines and Mineral Localities   Posted: Oct 13, 2022 07:42   Subject: Re: Find of Wulfenite in the El Centenillo mine, Granada
Indeed the photos are great. Very nice.
  Topic: Could it be a fulgurite?
John S. White

Replies: 3
Views: 3349

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Sep 29, 2022 11:04   Subject: Re: Could it be a fulgurite?
I believe it could be a fulgurite. With this type of fulgurite the glass would be in the center, surrounded by grains of sand. However, if the center is solid glass the object should be relatively ...
  Topic: Question about Rutile, Brookite and Anatase
John S. White

Replies: 4
Views: 4780

PostForum: Minerals and Mineralogy   Posted: Jul 21, 2022 20:54   Subject: Re: question about rutile, brookite and anatase
I am not sure that the reference to "why they crystallized differently" is really going to help Paul better understand polymorphs. At least two of the three (or more) titanium dioxide miner ...
  Topic: Twinned Topaz?
John S. White

Replies: 8
Views: 8085

PostForum: What is it? - Where is it from?   Posted: Jul 01, 2022 13:56   Subject: Re: Twinned Topaz?
I had a topaz in my collection that I wanted so much to be a twin but I could find no reference to topaz twinning in that direction or, in fact, in any direction so I had to conclude that topaz does n ...
  Topic: More Label Translation
John S. White

Replies: 9
Views: 5461

PostForum: What is it? - Where is it from?   Posted: May 22, 2022 13:15   Subject: Re: More Label Translation
Make that Melanson.


Correction made.
MGS
  Topic: Need help identifying this rock
John S. White

Replies: 10
Views: 5150

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: May 19, 2022 14:30   Subject: Re: Need help identifying this rock
Sorry Bob but I feel that leaving behind a rock or mineral sample that has no relationship to the geological environment where you left it is a very poor idea.
  Topic: Need help identifying this rock
John S. White

Replies: 10
Views: 5150

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: May 18, 2022 14:26   Subject: Re: Need help identifying this rock
I tend to agree with Alfredo but at the very least you can tell us where this canyon is located. Such information might often be critical.
 
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