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
21 Aug-16:53:36 Re: royal cornwall museum mineral gallery - your support is needed (Roy Starkey)
21 Aug-16:33:47 Re: royal cornwall museum mineral gallery - your support is needed (Robert Seitz)
21 Aug-11:48:08 Re: mineral identification (Ricknsarah)
21 Aug-11:44:14 Re: mineral identification (Matt_zukowski)
21 Aug-11:28:39 Re: mineral identification (Jordi Fabre)
21 Aug-11:20:38 Re: mineral identification (Kevin Schofield)
21 Aug-10:50:45 Re: mineral identification (Ricknsarah)
21 Aug-10:49:53 Mineral identification (Ricknsarah)
21 Aug-10:39:43 Re: sainte-marie-aux-mines - but not during showtime (Jordi Fabre)
21 Aug-10:27:08 Re: sainte-marie-aux-mines - but not during showtime (Philippe Durand)
21 Aug-09:45:27 Re: tucson show 2017 (Bob Harman)
21 Aug-09:32:17 Re: tucson show 2017 (Jordi Fabre)
21 Aug-09:09:25 Re: tucson show 2017 (Bob Harman)
21 Aug-05:41:28 Sainte-marie-aux-mines - but not during showtime (Andyh)
21 Aug-05:33:03 Re: tucson show 2017 (Daniel Peters)
21 Aug-00:27:05 Re: "deep sea manganese nodule".... (Mathias)
21 Aug-00:21:28 Re: ferberite, pyrite, siderite, and..... ? (Mathias)
20 Aug-15:02:19 Re: franjungle collection (Franjungle)
20 Aug-04:40:01 Re: micro photos of inclusions in quartz (Zbhjzm)
20 Aug-04:17:26 Re: crystal cavity + green vein poss. Chlorite? (Kara)
20 Aug-03:22:15 Re: ferberite, pyrite, siderite, and..... ? (Jorge Santos Garcia)
20 Aug-03:18:56 Re: collection of heimo hellwig (Heimo Hellwig)
20 Aug-03:06:27 Re: crystal cavity + green vein poss. Chlorite? (Peter Lemkin)
19 Aug-23:04:59 Re: question about fluorite on quartz (Robert Seitz)
19 Aug-20:11:06 Re: ferberite, pyrite, siderite, and..... ? (Justin Hickok)

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
44993


The time now is Aug 21, 2018 20:51

Search for a textSearch for a text   

A general guide for using the Forum with some rules and tips
Assistance in getting locality info for this Mexican? orthoclase & amphibole specimen
  
  Index -> What is it? - Where is it from?
Like
3


View previous topic :: View next topic  
Author Message

waltlombardo




Joined: 31 Mar 2011
Posts: 1
Location: Orange, CA

View user's profile

Send private message

PostPosted: Nov 17, 2017 13:33    Post subject: Assistance in getting locality info for this Mexican? orthoclase & amphibole specimen  

I acquired this mineral specimen from a university. It was part of a collection donated by Sy Sussman in the late 1970's. The specimen locality was given as Mexico. Any suggestions as to where, or if it even is a Mexican specimen?


Unknown Mexican 2.JPG
 Description:
 Viewed:  1586 Time(s)

Unknown Mexican 2.JPG



Unknown Mexican1.JPG
 Description:
 Viewed:  1589 Time(s)

Unknown Mexican1.JPG


Back to top
Reply to topic Reply with quote
Like
2
   

Tobi




Joined: 07 Apr 2009
Posts: 2668
Location: Good Old Germany


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Nov 18, 2017 01:21    Post subject: Re: Assistance in getting locality info for this Mexican? orthoclase & amphibole speci  

waltlombardo wrote:
I acquired this mineral specimen from a university. It was part of a collection donated by Sy Sussman in the late 1970's. The specimen locality was given as Mexico. Any suggestions as to where, or if it even is a Mexican specimen?
To be honest, I've never seen something like that from Mexico. It rather looks like a typical specimen of arfvedsonite (which IS an amphibole group mineral) on orthoclase from Mount Malosa in Malawi ...
Back to top
Reply to topic Reply with quote
Like
   

Peter Lemkin




Joined: 18 Nov 2016
Posts: 138
Location: Prague

View user's profile

Send private message

PostPosted: Nov 18, 2017 01:58    Post subject: Re: Assistance in getting locality info for this Mexican? orthoclase & amphibole speci  

It looks a little like the orthoclase/tourmaline I used to collect in San Diego Co. CA, just a few miles from the Mexico border. However, from the photo I can't tell if that is tourmaline or not. In that locality, the tourmaline came in both the classic form and something that looked like that....just a possibility. Test a piece of the black for s.g. and hardness. The pegmatites continue far into Baja CA, Mexico from where I was collecting - and it could be from other pegmatites in Mexico, as well.
Back to top
Reply to topic Reply with quote
Like
   

John S. White
Site Admin



Joined: 04 Sep 2006
Posts: 1227
Location: Stewartstown, Pennsylvania, USA


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Nov 18, 2017 05:25    Post subject: Re: Assistance in getting locality info for this Mexican? orthoclase & amphibole speci  

Where is Peter Megaw when you need him? If it is Mexican he will be familiar with it for sure. Peter is probably travelling or he would have posted a comment by now.
_________________
John S. White
aka Rondinaire
Back to top
Reply to topic Reply with quote
Like
1
   

marco campos-venuti




Joined: 09 Apr 2014
Posts: 183
Location: Sevilla


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Nov 18, 2017 06:31    Post subject: Re: Assistance in getting locality info for this Mexican? orthoclase & amphibole speci  

I found a specimen in mindat from Durango with very similar appearance, labeled orthoclase with horneblende. Photo is by Rock Currier and specimen is from the collection of Miguel Romero.
mindat.org/photo-278555.html
Back to top
Reply to topic Reply with quote
Like
   
Display posts from previous:   
   Index -> 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 2006-2018


Powered by FMF