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FMF - Friends of Minerals Forum, discussion and message board
The place to share your mineralogical experiences


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Newest topics and users posts
29 Mar-00:03:53 Identification question (Jim Wilkinson)
28 Mar-23:16:36 Re: collection of volkmar stingl (Volkmar Stingl)
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)

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The information provided within this Forum about localities is only given to allow reference to them. Any visit to any of the localities requires you to obtain full permission and relevant information prior to your visit. FMF is strictly against any illicit activities related to collecting minerals.
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  Topic: Unique Schorl Double Terminations
Herman van Dennebroek

Replies: 19
Views: 9618

PostForum: Minerals and Mineralogy   Posted: Jan 20, 2023 04:16   Subject: Re: Unique Schorl Double Terminations
There's a few double terminated schorls from Erongo that have been around for a while that have two unique terminations. One side is smooth and typical - and the other side can best be described as & ...
  Topic: Pyrite From Gavorrano?
Herman van Dennebroek

Replies: 14
Views: 7690

PostForum: What is it? - Where is it from?   Posted: Aug 23, 2021 02:36   Subject: Re: Pyrite From Gavorrano?
Hello Sante,
Just for the record I mention here: the Gavorrano photos I posted (and more pyrite and other minerals) were all purchased from you in the summer of 1975. It brings back good memories.
G ...
  Topic: Pyrite From Gavorrano?
Herman van Dennebroek

Replies: 14
Views: 7690

PostForum: What is it? - Where is it from?   Posted: Aug 20, 2021 04:54   Subject: Re: Pyrite From Gavorrano?
From 1972 to the end of 1980 I visited Tuscany several times. I collected minerals myself and bought minerals, especially pyrite, from miners and dealers. At that time there were 3 large mines that su ...
  Topic: Tsumeb pseudomorphoses
Herman van Dennebroek

Replies: 0
Views: 9598

PostForum: What is it? - Where is it from?   Posted: Apr 11, 2021 06:02   Subject: Tsumeb pseudomorphoses
Dear Tsumeb enthusiasts,
In preparing a lecture on pseudomorphoses I also include some Tsumeb specimens.
The photos I send now shows a piece that I have in my collection for over 30 years. It can be ...
  Topic: The Joy of Tucson, 2020 Gail Spann Experience
Herman van Dennebroek

Replies: 107
Views: 152536

PostForum: Mineral Shows by Gail Spann   Posted: Feb 08, 2020 11:49   Subject: Re: The Joy of Tucson, 2020 Gail Spann Experience
Wow!
  Topic: The Joy of Tucson, 2020 Gail Spann Experience
Herman van Dennebroek

Replies: 107
Views: 152536

PostForum: Mineral Shows by Gail Spann   Posted: Feb 07, 2020 15:43   Subject: Re: The Joy of Tucson, 2020 Gail Spann Experience
Where can I listen to the podcast? As a Tsumeb collector I'm always interested in things about Tsumeb
  Topic: Selecting minerals for an exhibition is a lot of work
Herman van Dennebroek

Replies: 3
Views: 15199

PostForum: Mineral Shows   Posted: Feb 06, 2020 05:40   Subject: Re: Selecting minerals for an exhibition is a lot of work
You are right James, not just Cornish. The layout of the exhibition uses the book Minerals of Cornwall and Devon. We have specifically followed the 5 mining areas that are discussed in the book.
  Topic: Selecting minerals for an exhibition is a lot of work
Herman van Dennebroek

Replies: 3
Views: 15199

PostForum: Mineral Shows   Posted: Feb 06, 2020 03:19   Subject: Selecting minerals for an exhibition is a lot of work
Selecting minerals for an exhibition is a lot of work (see The Joy of Tucson, 2020 Gail Spann Experience) The nice thing about it is that you once again hold pieces in your hands and can view and enjo ...
  Topic: The Joy of Tucson, 2020 Gail Spann Experience
Herman van Dennebroek

Replies: 107
Views: 152536

PostForum: Mineral Shows by Gail Spann   Posted: Feb 03, 2020 04:53   Subject: Re: The Joy of Tucson, 2020 Gail Spann Experience
Hi Jim and Gail, it's always a pleasure looking at your minerals. Thanks for showing.
  Topic: Help to identify this rock, please
Herman van Dennebroek

Replies: 4
Views: 7830

PostForum: What is it? - Where is it from?   Posted: Feb 02, 2020 15:35   Subject: Re: Help to identify this rock, please
At first sight your specimen looks like sodalite. But as Bob mentioned it's very difficult to determine from a photo
  Topic: Best Labeling Material for Collection Numbers on Specimens
Herman van Dennebroek

Replies: 15
Views: 21219

PostForum: Conserving, Preparing and Cleaning Minerals   Posted: Dec 12, 2018 15:27   Subject: Re: Best Labeling Material for Collection Numbers on Specimens
Using QR code is a very good idea. When your collection is small or you have just started collecting minerals, it's little work and low cost. But if your collection is large, 2000, 3000, or more speci ...
  Topic: Best Labeling Material for Collection Numbers on Specimens
Herman van Dennebroek

Replies: 15
Views: 21219

PostForum: Conserving, Preparing and Cleaning Minerals   Posted: Dec 12, 2018 06:41   Subject: Re: Best Labeling Material for Collection Numbers on Specimens
I am following the same glue procedure as Wendell Wilson does. The size of the labels is ± 14 x 0.5 mm. I cut them myself out of print paper. I write the number on the label with East-Indian ink. Spec ...
  Topic: How do you get your specimens?
Herman van Dennebroek

Replies: 13
Views: 13458

PostForum: Off-Topic and Introductions   Posted: Apr 12, 2016 12:12   Subject: Re: How do you get your specimens?
In my collection are present about 3500 specimens, most of them small cabinet size and also thumbnail size or something in between.

About 20% of my collection is self collected in Europe, USA and C ...
  Topic: St Peters Dome
Herman van Dennebroek

Replies: 6
Views: 25923

PostForum: Rockhounding trips   Posted: Apr 10, 2015 11:50   Subject: Re: St Peters Dome
Hi trickpats,

The location is mentioned in the book "The Rockhound's Guide to Colorado", page 152/155.

I visit the site in the summer of 1997. It was a disappointing experience. I foun ...
  Topic: Sainte Marie-aux-Mines Show 2014
Herman van Dennebroek

Replies: 40
Views: 98975

PostForum: News about Shows   Posted: Jul 02, 2014 04:08   Subject: Re: Sainte Marie-aux-Mines Show 2014
Thank you Ploum, for the magnificent pictures and thank you Jordi for sharing your thoughts about St.M.a.M. and your pictures.

I wasn't able to visit St.Marie this year but your reports make the me ...
  Topic: Perot Museum visit
Herman van Dennebroek

Replies: 7
Views: 20309

PostForum: Perot Museum of Nature and Science, Dallas, Texas   Posted: Apr 17, 2014 16:56   Subject: Re: Perot Museum visit
Great specimens and very nice pictures.

Thank you for sharing.
  Topic: New book:"Crystal Forms of Fluorite - Kristallformen von Fluorit"
Herman van Dennebroek

Replies: 11
Views: 30366

PostForum: Mineralogical Literature   Posted: Apr 15, 2014 08:58   Subject: Re: New book:"Crystal Forms of Fluorite - Kristallformen von Fluorit"
It's indeed a magnificent book, not only for fluorite lovers. For more than a month I have fun with looking at the pictures and crystal forms.
  Topic: Mineral & Fossil show in Amsterdam
Herman van Dennebroek

Replies: 1
Views: 6055

PostForum: Mineral Shows   Posted: Mar 22, 2014 15:41   Subject: Mineral & Fossil show in Amsterdam
3D printer creates crystal models.

For the first time in The Netherlands, on the show on April 6:
Crystal models of apophyllite will be created with a 3D printer, in the context of the year of the ...
  Topic: Tucson Show 2014
Herman van Dennebroek

Replies: 111
Views: 233200

PostForum: News about Shows   Posted: Mar 17, 2014 11:19   Subject: Re: Tucson Show 2014
Jordi, thank you for the complete show report and your comments about mineral collecting and the Tucson show.

greetings,
Herman
  Topic: Image upload system improvements in FMF
Herman van Dennebroek

Replies: 18
Views: 60436

PostForum: Comments & Suggestions   Posted: Jan 15, 2014 05:02   Subject: Re: Image upload system improvements in FMF
Congratulations Jordi and Staff,

The migration to the new server was successful. As far as I can see there are no problems. A lot of large companies has problems with migrations. Some systems are o ...
 
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