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
22 Apr-07:43:53 Re: the mim museum in beirut, lebanon (Mim Museum)
22 Apr-07:37:41 Re: collection of tobi (Tobi)
22 Apr-06:59:29 Re: in memoriam - george robinson, a man of science, passed away (James Catmur)
22 Apr-04:49:40 Re: in memoriam - george robinson, a man of science, passed away (Carles Millan)
22 Apr-04:27:08 In memoriam - george robinson, a man of science, passed away (Jordi Fabre)
21 Apr-19:05:50 The mizunaka collection - fluorite (Am Mizunaka)
21 Apr-10:18:36 Re: collection of volkmar stingl (Volkmar Stingl)
21 Apr-10:02:41 Re: collection of tobi (Tobi)
21 Apr-07:41:53 Re: collection of tobi (Tobi)
21 Apr-01:06:08 Re: collection of volkmar stingl (Volkmar Stingl)
19 Apr-14:43:38 Re: tsumeb unknown (Cfrench58)
19 Apr-13:49:53 Re: tsumeb unknown (Jordi Fabre)
19 Apr-13:49:47 Re: tsumeb unknown (Roger Warin)
19 Apr-11:39:35 Tsumeb unknown (Cfrench58)
18 Apr-22:18:36 Re: collection of volkmar stingl (Volkmar Stingl)
18 Apr-22:09:29 Re: the mim museum in beirut, lebanon (Volkmar Stingl)
18 Apr-14:47:23 Re: collection from dany mabillard (Dany Mabillard)
18 Apr-14:25:29 Re: collection from dany mabillard (Dany Mabillard)
18 Apr-10:23:19 Re: collection of michael shaw (Michael Shaw)
18 Apr-09:23:31 Re: collection of joseph d'oliveira (Joseph Doliveira)
18 Apr-01:38:56 The mizunaka collection - quartz (Am Mizunaka)
17 Apr-16:31:32 Re: mystery stone, who knows what it is? (Jordi Fabre)
17 Apr-13:20:51 Mystery stone, who knows what it is? (Flubbelyte)
17 Apr-01:49:17 Re: the mim museum in beirut, lebanon (Mim Museum)
16 Apr-09:46:56 Re: locality? (Bob Kerr)

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
112322


The time now is Apr 22, 2024 20:22

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.
Green seam. Looks like it in a state of decay.
  
  Index -> What is it? - Where is it from?
Like
4


View previous topic :: View next topic  
Author Message

Ning




Joined: 11 Jan 2023
Posts: 23

View user's profile

Send private message

PostPosted: Mar 18, 2024 08:12    Post subject: Green seam. Looks like it in a state of decay.  

Found in Koh Phangan, Thailand up in the hills in an old road dig site. There’s a lot of decaying granite. Pegmatites around with quartz, schorl, beryl (light green and aquamarine), feldspar (white, blue and pink).

I’ve found a couple of seams of this stuff. It’s quite decayed so can’t see any crystal habit or tell its luster. It’s bright lime green in colour when wet, becomes a bit more desaturated to semi pastel lime when dry.

Apparently, the island used to be mined for tin back in the day. But I can’t confirm this with geology reports. A few older Thai friends told me they used to get paid to find black stones in the rivers. Thinking this could have been massive cassiterite?



3BEAF214-1619-4816-8802-43CF680F01F3.jpeg
 Description:
 Viewed:  956 Time(s)

3BEAF214-1619-4816-8802-43CF680F01F3.jpeg



D72CDDEF-42DE-4E20-9339-1659F7933194.jpeg
 Description:
 Viewed:  952 Time(s)

D72CDDEF-42DE-4E20-9339-1659F7933194.jpeg



2702BB6E-56A8-4622-AC69-F7B615BF9F6A.jpeg
 Description:
 Viewed:  953 Time(s)

2702BB6E-56A8-4622-AC69-F7B615BF9F6A.jpeg



F1001A5C-96FA-46BC-85E8-BBBC0920AF14.jpeg
 Description:
 Viewed:  953 Time(s)

F1001A5C-96FA-46BC-85E8-BBBC0920AF14.jpeg



721E2583-5784-4E5C-93BA-4F3FD9E01A44.jpeg
 Description:
 Viewed:  954 Time(s)

721E2583-5784-4E5C-93BA-4F3FD9E01A44.jpeg


Back to top
Reply to topic Reply with quote
Like
   

James Catmur
Site Admin



Joined: 14 Sep 2006
Posts: 1344
Location: Cambridge


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 19, 2024 08:54    Post subject: Re: Green seam. Looks like it in a state of decay.  

You would need to test the rocks from the vein for minerals
Back to top
Reply to topic Reply with quote
Like
   

Forrestblyth




Joined: 21 Jun 2022
Posts: 56
Location: Ne244ly


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 19, 2024 08:59    Post subject: Re: Green seam. Looks like it in a state of decay.  

To me if it is in an area that has copper ore present it has the feel of Pyromorphite or mimetite. But you would need close up shots of crystals of some for to even hazard a meaningful guess
Back to top
Reply to topic Reply with quote
Like
   

alfredo
Site Admin



Joined: 30 Jan 2008
Posts: 979


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Mar 19, 2024 10:06    Post subject: Re: Green seam. Looks like it in a state of decay.  

More likely epidote, which is not uncommon as veins and fracture coatings in altered granites.
Back to top
Reply to topic Reply with quote
Like
3
   

Ning




Joined: 11 Jan 2023
Posts: 23

View user's profile

Send private message

PostPosted: Mar 21, 2024 22:45    Post subject: Re: Green seam. Looks like it in a state of decay.  

James Catmur wrote:
You would need to test the rocks from the vein for minerals


Thank for the reply. Will take them to singapore to get them tested when i take the pink quartz / indicolite combo. Should be next week.
Back to top
Reply to topic Reply with quote
Like
1
   

Ning




Joined: 11 Jan 2023
Posts: 23

View user's profile

Send private message

PostPosted: Mar 21, 2024 22:47    Post subject: Re: Green seam. Looks like it in a state of decay.  

alfredo wrote:
More likely epidote, which is not uncommon as veins and fracture coatings in altered granites.


Oh, would love to find some epidote crystals!
Back to top
Reply to topic Reply with quote
Like
   

Ning




Joined: 11 Jan 2023
Posts: 23

View user's profile

Send private message

PostPosted: Mar 21, 2024 22:49    Post subject: Re: Green seam. Looks like it in a state of decay.  

Forrestblyth wrote:
To me if it is in an area that has copper ore present it has the feel of Pyromorphite or mimetite. But you would need close up shots of crystals of some for to even hazard a meaningful guess


I haven’t seen any evidence of copper or at least my untrained eye hasn’t. It’s been suggested pyromorphite by a few folks.
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