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
18 Mar-08:12:52 Green seam. Looks like it in a state of decay. (Ning)
18 Mar-06:47:13 Mineralogy & museums 10 - cardiff - 12th-13th august 2024 (Roy Starkey)
18 Mar-02:50:32 Re: collection from dany mabillard (Dany Mabillard)
17 Mar-01:57:58 Re: collection of volkmar stingl (Volkmar Stingl)
15 Mar-14:27:47 Re: collection of philippe durand (Philippe Durand)
15 Mar-13:49:04 Re: collection of firmo espinar (Firmo Espinar)
15 Mar-09:18:42 Re: collection of michael shaw (Michael Shaw)
15 Mar-03:45:43 The mizunaka collection - rhodochrosite (Am Mizunaka)
14 Mar-21:29:31 Re: monthly mineral chronicles, mineral guides and more... (Crocoite)
14 Mar-14:47:27 Re: collection of philippe durand (Jordi Fabre)
14 Mar-13:56:01 Re: collection of philippe durand (Philippe Durand)
14 Mar-11:24:43 Re: collection of philippe durand (Jordi Fabre)
14 Mar-08:55:22 Re: collection of michael shaw (Michael Shaw)
14 Mar-08:44:47 Re: the mim museum in beirut, lebanon (Mim Museum)
14 Mar-07:24:12 Re: collection of volkmar stingl (Volkmar Stingl)
14 Mar-02:30:15 The mizunaka collection - quartz (Am Mizunaka)
14 Mar-02:20:37 Re: collection of volkmar stingl (Tobi)
13 Mar-23:40:08 Re: collection of volkmar stingl (Volkmar Stingl)
13 Mar-14:22:58 Re: don lum collection (Don Lum)
13 Mar-14:02:43 Re: collection of philippe durand (Philippe Durand)
13 Mar-00:57:48 The mizunaka collection - quartz (Am Mizunaka)
12 Mar-07:36:06 Re: can you recommend a lab to analyse specimens (Luiz Oliveira)
11 Mar-16:19:18 Re: collection of philippe durand (Riccardo Modanesi)
11 Mar-15:18:26 Re: collection of philippe durand (Philippe Durand)
11 Mar-15:13:07 Re: collection of philippe durand (Philippe Durand)

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
111630


The time now is Mar 19, 2024 01:25

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.
Unknown garnet
  
  Index -> What is it? - Where is it from?
Like


View previous topic :: View next topic  
Author Message

Roger Warin




Joined: 23 Jan 2013
Posts: 1171


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jun 25, 2022 04:52    Post subject: Unknown garnet  

Hello,
I was asked a question. The answer is not obvious since the photos are poor.
I retain 2 facts : the color and the equant aspect.
Origin: Pakistan.
I thought of uvarovite or even tsavorite.
The gangue may provide a clue.
Thanks.
Roger.



IMG_3840-rw.jpg
 Mineral: Green garnet
 Description:
 Viewed:  5299 Time(s)

IMG_3840-rw.jpg



IMG_3841.jpg
 Description:
 Viewed:  5298 Time(s)

IMG_3841.jpg



IMG_3841-rw.jpg
 Description:
 Viewed:  5293 Time(s)

IMG_3841-rw.jpg



IMG_3842-rw.jpg
 Description:
 Viewed:  5309 Time(s)

IMG_3842-rw.jpg


Back to top
Reply to topic Reply with quote
Like
   

Bob Morgan




Joined: 18 Jan 2018
Posts: 226
Location: Savannah, Georgia


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jun 25, 2022 08:06    Post subject: Re: Unknown garnet  

They might be Grossulars from the Vilyui River in Russia.
Back to top
Reply to topic Reply with quote
Like
   

Bob Carnein




Joined: 22 Aug 2013
Posts: 325
Location: Florissant, CO


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jun 25, 2022 09:27    Post subject: Re: Unknown garnet  

Could be demantoid (andradite). Mindat lists several localities in Pakistan.
Back to top
Reply to topic Reply with quote
Like
   

Roger Warin




Joined: 23 Jan 2013
Posts: 1171


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jun 25, 2022 15:18    Post subject: Re: Unknown garnet  

Demantoid garnet,
Yes, the most probable variety remains the best answer.
Thank you a lot.
Back to top
Reply to topic Reply with quote
Like
   

Riccardo Modanesi




Joined: 07 Nov 2011
Posts: 618
Location: Milano

View user's profile

Send private message

PostPosted: Jun 26, 2022 14:53    Post subject: Re: Unknown garnet  

Hi to everybody!
There are many possibilities:
i) andradite (var. demantoid);
ii) grossular (var. tsavorite);
iii) the likeliest in my opinion: uvarovite!
Greetings from Italy by Riccardo.

_________________
Hi! I'm a collector of minerals since 1973 and a gemmologist. On Summer I always visit mines and quarries all over Europe looking for minerals! Ok, there is time to tell you much much more! Greetings from Italy by Riccardo.
Back to top
Reply to topic Reply with quote
Like
   

Bob Carnein




Joined: 22 Aug 2013
Posts: 325
Location: Florissant, CO


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jun 26, 2022 17:50    Post subject: Re: Unknown garnet  

I don't know whether uvarovite, a garnet with a very restricted geologic provenance, occurs in Pakistan, but there are no photos of it on Mindat.
Back to top
Reply to topic Reply with quote
Like
   

Matt_Zukowski
Site Admin



Joined: 10 Apr 2009
Posts: 707
Location: Alaska


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jun 26, 2022 20:00    Post subject: Re: Unknown garnet  

Can you tell us what the two minerals are that make up the matrix? Are you sure it comes from PAK?
Back to top
Reply to topic Reply with quote
Like
   

Roger Warin




Joined: 23 Jan 2013
Posts: 1171


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jun 27, 2022 07:43    Post subject: Re: Unknown garnet  

Hello Matt,
Alas, I have only ever seen these photos of the unknown mineral. The question was posed to me.
My photos are still better!
Thank you for your interest in this problem of a friend.
I underline a point: the rock (?°) is almost colorless (feldspar?).
Wouldn't it be an orthoclase with another secondary mineral?
From Pakistan, yes.
Back to top
Reply to topic Reply with quote
Like
   

Roger Warin




Joined: 23 Jan 2013
Posts: 1171


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Aug 01, 2022 23:43    Post subject: Re: Unknown garnet  

Hello,
The analysis showed that this mineral of green tourmaline group was indeed a dravite.
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 2006-2024


Powered by FMF