We use cookies to show content based on your preferences. If you continue to browse you accept their use and installation. More information. >

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


Spanish message board






Newest topics and users posts
29 Mar-08:09:52 Re: collection of tobi (Tobi)
29 Mar-07:25:48 Re: collection of volkmar stingl (Tobi)
29 Mar-06:20:21 Re: identification question (James Catmur)
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)

For lists of newest topics and postings click here


RSS RSS

View unanswered posts

Why and how to register

Index Index
 FAQFAQ RegisterRegister  Log inLog in
 {Forgotten your password?}Forgotten your password?  

Like
111815


The time now is Mar 29, 2024 08:28

Search for a textSearch for a text   

A general guide for using the Forum with some rules and tips
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.
N'Chwaning 1, 2, 3, Hotazel, Wessels - do you really care?
  Goto page Previous  1, 2
  Index -> Minerals and Mineralogy
Like
42


View previous topic :: View next topic  
Author Message

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Feb 27, 2017 16:00    Post subject: Re: N'Chwaning 1, 2, 3, Hotazel, Wessels - do you really care?  

bob kerr wrote:

- Concerning current or future scientific value of our specimens, I have a more pragmatic view. In most cases, our specimens are probably one of the many, many thousands – or even tens of thousands – or millions, removed from a locality. This along with the label uncertainty mentioned above makes it hard for me to see how my specimens would ever be of scientific importance – good science needs good accuracy.

I think you hit the nail on the head Bob.
An accurate geographical origin is something we all value to some degree but it is vital for any serious scientific work done with samples or specimens.
If a specimen is not purposely sampled for scientific reasons to start with, even the most detailed label will never replace the accuracy needed to carry a chemical and isotope analyses.
Back to top
Reply to topic Reply with quote
Like
1
   

alfredo
Site Admin



Joined: 30 Jan 2008
Posts: 979


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 01, 2017 13:40    Post subject: Re: N'Chwaning 1, 2, 3, Hotazel, Wessels - do you really care?  

As a geologist, I'm interested in the characteristics of the deposit a mineral came from, it's geological environment. Names of mines are often a political or administrative convention and don't necessarily provide more accuracy. If you get specimens labelled "Chuquicamata mine" and "Chocaya-Animas mining district", which label provides more precise locality info? In this case, the mining district label does! Chuquicamata is a gigantic pit, a few kilometers long. Chocaya-Animas is a string of 6 mines, all working the same set of veins, and covering a much smaller total area than Chuquicamata.

But collectors seem to have an intense drive to know a mine name, whether or not that actually gives them any more detailed information. Hence the majority of dealers label all phosphophyllite specimens from Potosi city as being from the "Unificada mine", because it keeps the customers happy, even though that name is merely an administrative convenience and does not indicate which part of the mountain a phosphophyllite specimen came from!
Back to top
Reply to topic Reply with quote
Like
4
   

Pierre Joubert




Joined: 09 Mar 2012
Posts: 1605
Location: Western Cape


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 02, 2017 01:24    Post subject: Re: N'Chwaning 1, 2, 3, Hotazel, Wessels - do you really care?  

I like Alfredo's reasoning. Our collecting field in the Western Cape is relatively poor in crystallized species, but beautiful quartz is in abundance. I collect from numerous places across a few hundred km and will never specify exactly where the specimens come from, and for obvious reasons. The region is good enough for me; any more detail is welcome. I usually give the closest town as the area of origin. I also agree with Bob Kerr and Gerard.
_________________
Pierre Joubert


'The tree of silence bears the fruit of peace. '
Back to top
Reply to topic Reply with quote
Like
   
Display posts from previous:   
   Index -> Minerals and Mineralogy   All times are GMT - 5 Hours
Page 2 of 2
  Goto page Previous  1, 2  

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


All pictures, text, design © Forum FMF 2006-2024


Powered by FMF