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

FMF English Forum is moderated by John S. White and Peter Megaw
 

Spanish message board






Newest topics and users posts
27 Jun-11:44:00 Re: sainte marie-aux-mines show 2017 (Bob Harman)
27 Jun-11:21:55 Re: sainte marie-aux-mines show 2017 (Philippe Durand)
27 Jun-11:05:55 Re: collection of fiebre verde - la pita (#658) (Fiebre Verde)
27 Jun-10:28:32 Re: the mizunaka collection - quartz (Tobi)
27 Jun-09:54:27 Re: witherite xls from ky (Bob Carnein)
27 Jun-07:41:26 Fosminer 2017 - 40th edition (Jordi Fabre)
27 Jun-04:11:14 Re: sainte marie-aux-mines show 2017 (Roger Warin)
27 Jun-01:29:20 Re: genuine aventurine? (Volkmar Stingl)
27 Jun-01:25:53 Re: carlos pareja photo collection (Carlos Pareja)
26 Jun-18:21:05 Re: witherite xls from ky (Pete Richards)
26 Jun-16:32:29 The mizunaka collection - quartz (Am Mizunaka)
26 Jun-16:29:21 Re: witherite xls from ky (Dontgogreen)
26 Jun-16:27:53 Re: witherite xls from ky (Dontgogreen)
26 Jun-16:25:49 Witherite xls from ky (Dontgogreen)
26 Jun-11:36:49 Re: sainte marie-aux-mines show 2017 (Philippe Durand)
26 Jun-11:27:02 Re: sainte marie-aux-mines show 2017 (Philippe Durand)
26 Jun-11:25:01 Re: sainte marie-aux-mines show 2017 (Philippe Durand)
26 Jun-11:21:58 Re: sainte marie-aux-mines show 2017 (Philippe Durand)
26 Jun-09:03:55 Re: genuine aventurine? (Lluis)
26 Jun-06:22:10 Re: the bogota´s french connection (Fiebre Verde)
26 Jun-06:00:20 Re: sainte marie-aux-mines show 2017 (Jordi Fabre)
26 Jun-05:56:09 Re: carlos pareja photo collection (Carlos Pareja)
26 Jun-05:46:58 Re: the bogota´s french connection (Franjungle)
26 Jun-05:39:48 Re: struggling to identify the green mineral (Jordi Fabre)
26 Jun-03:49:50 Re: genuine aventurine? (Evin Likes Rocks)

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
29432


The time now is Jun 27, 2017 12:17

Search for a textSearch for a text   

A general guide for using the Forum with some rules and tips
What is it?
  
  Index -> FOR BEGINNERS: What is it? Where is it from?
Like
2


View previous topic :: View next topic  
Author Message

Ricardo Melendez




Joined: 21 Apr 2014
Posts: 63
Location: Estado de Mexico


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Feb 16, 2017 12:50    Post subject: What is it?  

Hi friends,

I have a mineral from most probably Naica, but it could also be from Santa Eulalia, Chihuahua, México. The luster is very like the tin welding used in electronic circuits.

It is associated with quartz, galena and calcite, much more harder than molybdenite, but since this is a unique crystal, I do not want to try scratching it.

Here there are many experts in minerals from Northern Mexico. Maybe one of you can help me.

Regards,

Ricardo



DSCN9330.JPG
 Mineral: Unidentified
 Description:
Naica or Santa Eulalia, Chihuahua, Mexico.
 Viewed:  715 Time(s)

DSCN9330.JPG



DSCN9327.JPG
 Description:
 Viewed:  711 Time(s)

DSCN9327.JPG



DSCN9331.JPG
 Description:
 Viewed:  711 Time(s)

DSCN9331.JPG



DSCN9331-s1.JPG
 Description:
 Viewed:  714 Time(s)

DSCN9331-s1.JPG


Back to top
Reply to topic Reply with quote
Like
   

Bob Carnein




Joined: 22 Aug 2013
Posts: 62
Location: Florissant, CO

View user's profile

Send private message

PostPosted: Feb 16, 2017 12:56    Post subject: Re: what is it?  

Looks to me like a spinel-law twin of galena.
Back to top
Reply to topic Reply with quote
Like
1
   

John Betts




Joined: 07 Jun 2012
Posts: 81
Location: New York City

View user's profile

Send private message

PostPosted: Feb 16, 2017 13:06    Post subject: Re: what is it?  

Bob Carnein wrote:
Looks to me like a spinel-law twin of galena.


I agree.

_________________
John Betts
Back to top
Reply to topic Reply with quote
Like
   

kushmeja




Joined: 28 Jul 2014
Posts: 174
Location: New Jersey

View user's profile

Send private message

PostPosted: Feb 16, 2017 13:27    Post subject: Re: what is it?  

John Betts wrote:
Bob Carnein wrote:
Looks to me like a spinel-law twin of galena.


I agree.


I'm also in agreement that it's a spinel twin galena. I have specimens from Naica that have near identical galena in combination with fluorite and chalcopyrite, so Naica is also a likely locality as well
Back to top
Reply to topic Reply with quote
Like
1
   

Ricardo Melendez




Joined: 21 Apr 2014
Posts: 63
Location: Estado de Mexico


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Feb 16, 2017 13:38    Post subject: Re: What is it?  

I just saw some photos of galena twins, so I agree.

Many thanks you Experts.
Back to top
Reply to topic Reply with quote
Like
   
Display posts from previous:   
   Index -> FOR BEGINNERS: What is it? Where is it from?   All times are GMT - 5 Hours
Page 1 of 1
    

 
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 2006-2017


Powered by FMF