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
07 Dec-00:42:49 Re: collection of volkmar stingl (Volkmar Stingl)
06 Dec-23:38:58 The mizunaka collection - rhodochrosite (Am Mizunaka)
06 Dec-15:27:58 Re: tanzanite pleochroism (Cascaillou)
06 Dec-15:25:26 Re: tanzanite pleochroism (Roger Warin)
06 Dec-14:16:46 Re: lego rhodochrosite, amethyst geode, black tourmaline with aquamarine, orange quartz, e (Cascaillou)
06 Dec-13:52:59 Re: tanzanite pleochroism (Cascaillou)
06 Dec-13:15:23 Contribution dr. Menor-salván - european association of geochemistry photo contest - (53) (Fmf Forum)
06 Dec-13:14:31 Contribution dr. Menor-salván - european association of geochemistry photo contest - (53) (Fmf Forum)
06 Dec-11:07:50 Re: collection of firmo espinar (Firmo Espinar)
06 Dec-08:17:24 Re: uk locality help (James Catmur)
06 Dec-08:04:47 Re: uk locality help (James Catmur)
04 Dec-22:55:59 Re: collection of volkmar stingl (Volkmar Stingl)
04 Dec-17:44:14 Re: uk locality help (James Catmur)
04 Dec-15:59:16 Re: collection of michael shaw (Michael Shaw)
04 Dec-03:11:50 Re: the mim museum in beirut, lebanon (Mim Museum)
03 Dec-21:43:59 The mizunaka collection - fluorite (Am Mizunaka)
03 Dec-11:11:35 Re: hardin or elmwood fluorite? (Juan Roberto Rivera)
03 Dec-10:41:40 Uk locality help (Michael Shaw)
03 Dec-04:45:26 Re: collection of michael shaw (James Catmur)
03 Dec-03:02:41 Re: hardin or elmwood fluorite? (Tobi)
02 Dec-17:39:50 Re: hardin or elmwood fluorite? (Jordi Fabre)
02 Dec-15:00:51 Re: collection of michael shaw (Michael Shaw)
02 Dec-12:21:29 Re: hardin or elmwood fluorite? (Juan Roberto Rivera)
02 Dec-11:32:38 Re: collection of michael shaw (James Catmur)
02 Dec-10:08:36 Re: collection of michael shaw (Michael Shaw)

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
116519


The time now is Dec 07, 2024 04:14

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.
History of the Chivor Emerald Mine, Colombia (Part 1)
  
  Index -> The histories behind mineral specimens
Like
18


View previous topic :: View next topic  
Author Message

Fiebre Verde




Joined: 11 Sep 2013
Posts: 943
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jul 24, 2020 11:48    Post subject: History of the Chivor Emerald Mine, Colombia (Part 1)  

For those interested in mining history, the GIA has just released the Spring issue of Gems & Gemology which features an article on the history of the Chivor Emerald mine (Colombia).

You can access and read the online version by following this link
https://www.gia.edu/gems-gemology/spring-2020-history-of-the-chivor-emerald-mine-part-1
(link normalized by FMF)

From that link, you can also download the PDF version which contains more images.

Hope some of you will find the reading interesting.

Gérard
Back to top
Reply to topic Reply with quote
Like
7
   

James Catmur
Site Admin



Joined: 14 Sep 2006
Posts: 1411
Location: Cambridge


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jul 24, 2020 13:36    Post subject: Re: History of the Chivor Emerald Mine, Colombia (Part 1)  

Merci

Great photos and a great read
Back to top
Reply to topic Reply with quote
Like
1
   

Bergur_E_Sigurdarson




Joined: 21 Dec 2017
Posts: 148
Location: Paipa, Colombia


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jul 24, 2020 14:12    Post subject: Re: History of the Chivor Emerald Mine, Colombia (Part 1)  

Awesome!

Haven't taken the time to read it all, but as I quickly glanced through I was wondering about El Toro.... which isn't marked on fig.3
....is that Gachala and not Chivor area?
Back to top
Reply to topic Reply with quote
Like
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 943
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jul 24, 2020 14:59    Post subject: Re: History of the Chivor Emerald Mine, Colombia (Part 1)  

Bergur_E_Sigurdarson wrote:
Awesome!

Haven't taken the time to read it all, but as I quickly glanced through I was wondering about El Toro.... which isn't marked on fig.3
....is that Gachala and not Chivor area?

Thanks Bergur!
To avoid clogging the map, only the historical/main mines are indicated.
I am aware of at least two El Toro emerald mines in the Eastern Belt.
The Gachalá El Toro mine is located between Matecaña (known for the 'emerald gastropods') and Las Cruces (where a monster crystal of 7,015 carats was found in 1969 and called later 'La Emilia').
Actually there are 5 mines lined up over 1,200m along the San Fernando fault.
From NE to SW: Matecaña, El Toro, El Perro, El Diamante, and Las Cruces.
The Chivor El Toro mine is located NE of Buenavista, on the northern side of Rio Rucio.
~15 years ago, Chivor El Toro produced whitish opaque emerald aggregates embedded in crumbly brown limonite - am sure you have seen some samples of this find.
Back to top
Reply to topic Reply with quote
Like
5
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 943
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 26, 2020 08:40    Post subject: Re: History of the Chivor Emerald Mine, Colombia (Part 2)  

For those eagerly awaiting the rest of the story, I am happy to announce that Part II of the article on the history of the Chivor Emerald mine has just been released in the latest GIA (Gemological Institute of America) Gems & Gemology, Summer 2020, Vol. 56, No. 2.

The article concludes a sweeping two-part series chronicling the history of this iconic Colombian emerald mine. It examines events from 1924 to 1970, when the mine was owned by American interests. While the early era was marked by stock market speculation and scandal, there were also highly productive periods at the fabled mine.

Online version of the article can be accessed by the following link
https://www.gia.edu/gems-gemology/summer-2020-history-of-the-chivor-emerald-mine-part-2
(link normalised by FMF)

From that link, you can also download the PDF version of the article.

Happy reading!

Gérard
Back to top
Reply to topic Reply with quote
Like
5
   
Display posts from previous:   
   Index -> The histories behind mineral specimens   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