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
27 Mar-19:47:08 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Pete Richards)
27 Mar-16:15:44 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Cfrench58)
27 Mar-15:18:59 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Alfredo)
27 Mar-14:39:29 2 unknowns co-occurring with caledonite, grand reef mine, az (Cfrench58)
27 Mar-05:21:48 Re: the mim museum in beirut, lebanon (Mim Museum)
27 Mar-05:03:26 Re: trying to find information on rose/pink quartz and tourmaline associations. (Ning)
27 Mar-02:39:50 Re: the mim museum in beirut, lebanon (Tobi)
27 Mar-00:23:28 Re: collection of volkmar stingl (Volkmar Stingl)
26 Mar-00:53:41 Re: collection of volkmar stingl (Volkmar Stingl)
25 Mar-13:32:10 Re: collection of michael shaw (Michael Shaw)
25 Mar-00:25:58 The mizunaka collection - quartz (Am Mizunaka)
23 Mar-13:35:22 Re: collection of firmo espinar (Firmo Espinar)
22 Mar-08:32:28 Re: collection of michael shaw (Michael Shaw)
22 Mar-04:20:41 Re: the mim museum in beirut, lebanon (Mim Museum)
21 Mar-22:49:19 Re: green seam. Looks like it in a state of decay. (Ning)
21 Mar-22:47:40 Re: green seam. Looks like it in a state of decay. (Ning)
21 Mar-22:45:25 Re: green seam. Looks like it in a state of decay. (Ning)
21 Mar-15:34:23 Re: the mizunaka collection - quartz (Am Mizunaka)
21 Mar-14:35:08 Re: jim’s mineral collection (Jim Wilkinson)
21 Mar-14:15:36 The 4th phoenix heritage mineral show (phms) hosted by mineralogical society of arizona (m (Chris Whitney-smith)
21 Mar-04:36:10 Re: the mizunaka collection (Tobi)
21 Mar-04:11:47 Re: jim’s mineral collection (James Catmur)
20 Mar-23:34:15 The mizunaka collection - quartz (Am Mizunaka)
20 Mar-18:13:16 Re: jim’s mineral collection (Jim Wilkinson)
20 Mar-14:06:43 Re: dry gill mine, caldbeck fells, cumbria, uk (Forrestblyth)

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
111802


The time now is Mar 28, 2024 09:13

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.
Collection of Fiebre Verde
  Goto page Previous  1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38  Next
  Index -> Collection photos and Collector's page
Like
2164


View previous topic :: View next topic  
Author Message

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Sep 06, 2018 15:28    Post subject: Re: Collection of Fiebre Verde - La Pita (#343)  

Group of 10+ grass green crystals.
Host rock is a bedded limestone.



IMG_9610nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 59x40x41mm, largest xl=20mm
 Description:
 Viewed:  21610 Time(s)

IMG_9610nb.JPG


Back to top
Reply to topic Reply with quote
Like
8
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Sep 15, 2018 15:23    Post subject: Re: Collection of Fiebre Verde - Muzo (#703)  

Beryl crystal partly encapsulated in a calcite shell.
Host rock is black shale.



IMG_8715nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 45x47x32mm, xl=15mm
 Description:
 Viewed:  21474 Time(s)

IMG_8715nb.JPG



IMG_8739nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 45x47x32mm, xl=15mm
 Description:
 Viewed:  21525 Time(s)

IMG_8739nb.JPG



IMG_8785nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 45x47x32mm, xl=15mm
 Description:
 Viewed:  21486 Time(s)

IMG_8785nb.JPG



IMG_8776nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 45x47x32mm, xl=15mm
 Description:
 Viewed:  21462 Time(s)

IMG_8776nb.JPG


Back to top
Reply to topic Reply with quote
Like
8
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Sep 22, 2018 15:56    Post subject: Re: Collection of Fiebre Verde - Muzo (#707)  

Small beryl crystal has grown on top of the large one.


IMG_9627nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: xl=5.5x7x4.5mm
 Description:
 Viewed:  21334 Time(s)

IMG_9627nb.JPG



IMG_9658nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: xl=5.5x7x4.5mm
 Description:
 Viewed:  21295 Time(s)

IMG_9658nb.JPG


Back to top
Reply to topic Reply with quote
Like
8
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 03, 2018 15:11    Post subject: Re: Collection of Fiebre Verde - Chivor (#710]  

Beryl crystal has a complex pyramidal termination.


IMG_9715nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 4x10mm
 Description:
 Viewed:  21056 Time(s)

IMG_9715nb.JPG



IMG_9740nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 4x10mm
 Description:
 Viewed:  21052 Time(s)

IMG_9740nb.JPG


Back to top
Reply to topic Reply with quote
Like
9
   

Tobi
Site Admin



Joined: 07 Apr 2009
Posts: 4092
Location: Germany


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 07, 2018 04:09    Post subject: Re: Collection of Fiebre Verde  

Just too good to be true! Especially the one with the "baby" crystal attached to its top - what a beauty!
Back to top
Reply to topic Reply with quote
Like
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 07, 2018 09:34    Post subject: Re: Collection of Fiebre Verde  

Tobi wrote:
Just too good to be true! Especially the one with the "baby" crystal attached to its top - what a beauty!

Thanks Tobi!
These small crystals are sometime overlooked by dealers trying to go for the big sale.
The "big sale" wasn't that big at the end and I walked out with a lot of 4 small crystals as a bonus.
Gérard
Back to top
Reply to topic Reply with quote
Like
1
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 16, 2018 15:52    Post subject: Re: Collection of Fiebre Verde - Chivor (#688]  

Two intergrown crystals from Chivor.
Very likely from the historic mine of Palo Arañado.



IMG_9271nb.JPG
 Mineral: Beryl (variety emerald), Albite (variety cleavelandite), Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: both crystals are 15mm long
 Description:
 Viewed:  20902 Time(s)

IMG_9271nb.JPG


Back to top
Reply to topic Reply with quote
Like
10
   

Michael Shaw
Site Admin



Joined: 30 Apr 2008
Posts: 2060
Location: Oklahoma


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 17, 2018 09:39    Post subject: Re: Collection of Fiebre Verde - Chivor (#688]  

Fiebre Verde wrote:
Two intergrown crystals from Chivor.
Very likely from the historic mine of Palo Arañado.


Very nice Gérard.
Back to top
Reply to topic Reply with quote
Like
1
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 17, 2018 10:53    Post subject: Re: Collection of Fiebre Verde - Chivor (#688]  

crosstimber wrote:
Fiebre Verde wrote:
Two intergrown crystals from Chivor.
Very likely from the historic mine of Palo Arañado.


Very nice Gérard.

Thanks Michael!
These small specimens are sometimes overlooked in the Bogota market.
With a bit of patience and time, you can find some real treasures at a very reasonable price.
Gérard
Back to top
Reply to topic Reply with quote
Like
3
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 18, 2018 16:33    Post subject: Re: Collection of Fiebre Verde - Quartz with unknown fibrous inclusions (#8820]  

Colorless quartz cluster.
Terminations are heavily included with a vivid yellowish-orange material.
Crystals are double-terminated.
This material is from the early 2000s, from an unknown Colombian locality, either in the state of Santander or in Boyacá.
The dealer I got this specimen from believes that the yellowish-orange fibrous inclusions is Humboldtine.

In a recent post, John Rakovan mentioned that these inclusions were being analyzed by his team of the Miami University.
Eagerly waiting for an update on the nature of these inclusions :-)



IMG_9783nb.JPG
 Mineral: Quartz
 Locality:
Colombia
 Dimensions: 13x46x8mm
 Description:
 Viewed:  20707 Time(s)

IMG_9783nb.JPG



IMG_9794nb.JPG
 Mineral: Quartz
 Locality:
Colombia
 Dimensions: 13x46x8mm
 Description:
 Viewed:  20705 Time(s)

IMG_9794nb.JPG


Back to top
Reply to topic Reply with quote
Like
6
   

Bergur_E_Sigurdarson




Joined: 21 Dec 2017
Posts: 147
Location: Paipa, Colombia


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 18, 2018 17:59    Post subject: Re: Collection of Fiebre Verde  

I have seen similar quartz in Colombia... usually told it's from Santander... whether correct or not.
But the ones I have seen aren't usually vivid yellow... the texture of the "fibers" or tubes is the same... but colour ranges from almost white to oxidized brown (similar to the dirt in btw many examples I have seen and bought a few) .... I had always assumed they were just "micro-tubes" getting filled with rust/dirt.
Back to top
Reply to topic Reply with quote
Like
1
   

Philippe Durand




Joined: 10 May 2016
Posts: 628
Location: Normandie


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 19, 2018 10:16    Post subject: Re: Collection of Fiebre Verde - Chivor (#688]  

Fiebre Verde wrote:
Two intergrown crystals from Chivor.
Very likely from the historic mine of Palo Arañado.


wouah ! Fabulous thumbnail
Back to top
Reply to topic Reply with quote
Like
2
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 19, 2018 12:14    Post subject: Re: Collection of Fiebre Verde - Chivor (#688]  

Philippe Durand wrote:
Fiebre Verde wrote:
Two intergrown crystals from Chivor.
Very likely from the historic mine of Palo Arañado.


wouah ! Fabulous thumbnail

Thanks for your appreciation Philippe!
Mother nature has certainly done a good job here.
Back to top
Reply to topic Reply with quote
Like
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 21, 2018 13:50    Post subject: Re: Collection of Fiebre Verde - Gachalá (#713]  

The Matecaña mine made the headlines 20 years ago after a pocket full of gastropods was discovered.
These were not ordinary fossils - their shells had been “pseudomorphosed” to emerald following the classic process of “mineralization by dissolution/substitution”
Never had a chance to have an emerald gastropod in my collection but I was lucky to get my first Matecaña specimen only a few days ago.
This druse of deep green crystals arranged in an “en echelon” form looks like a vein crossing the black shale.
But the unique feature of this vein is that outside the emerald, no other mineralization is seen. Contrast of the deep green color with the black shale is spectacular, much better in person.
I was told by a miner who works in the Gachalá area that the black shale found in Matecaña is extremely hard – probably due to the high concentration of silica.



IMG_9891nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Gachalá mining district, Matecaña Mine, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia
 Dimensions: 90x57x49mm
 Description:
 Viewed:  20537 Time(s)

IMG_9891nb.JPG



IMG_9900nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Gachalá mining district, Matecaña Mine, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia
 Dimensions: 90x57x49mm
 Description:
 Viewed:  20551 Time(s)

IMG_9900nb.JPG



IMG_9907nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Gachalá mining district, Matecaña Mine, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia
 Dimensions: 90x57x49mm
 Description:
 Viewed:  20545 Time(s)

IMG_9907nb.JPG



IMG_9948nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Gachalá mining district, Matecaña Mine, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia
 Dimensions: 90x57x49mm
 Description:
 Viewed:  20543 Time(s)

IMG_9948nb.JPG


Back to top
Reply to topic Reply with quote
Like
11
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 29, 2018 16:34    Post subject: Re: Collection of Fiebre Verde - Chivor (#711)  

Hollow emerald, only found in the Chivor district.
It is admitted that crystals with a central hollow result from rapid growth.



IMG_9841nb.JPG
 Mineral: Beryl (variety emerald), Quartz
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: xl=11.5mm x 12mm
 Description:
 Viewed:  20378 Time(s)

IMG_9841nb.JPG



IMG_9835nb.JPG
 Mineral: Beryl (variety emerald), Quartz
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: xl=11.5mm x 12mm
 Description:
 Viewed:  20383 Time(s)

IMG_9835nb.JPG


Back to top
Reply to topic Reply with quote
Like
7
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 31, 2018 15:15    Post subject: Re: Collection of Fiebre Verde - Chivor (#712)  

Another hollow crystal from the Eastern Emerald Belt.
Hollow form is caused by rapid growth of the crystal.



IMG_9874nb1.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Chivor mining district, El Oriente Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: xl=5x11mm
 Description:
 Viewed:  20296 Time(s)

IMG_9874nb1.JPG


Back to top
Reply to topic Reply with quote
Like
12
   

Tobi
Site Admin



Joined: 07 Apr 2009
Posts: 4092
Location: Germany


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Nov 02, 2018 03:17    Post subject: Re: Collection of Fiebre Verde - Gachalá (#713]  

Fiebre Verde wrote:
The Matecaña mine made the headlines 20 years ago after a pocket full of gastropods was discovered. These were not ordinary fossils - their shells had been “pseudomorphosed” to emerald following the classic process of “mineralization by dissolution/substitution” Never had a chance to have an emerald gastropod in my collection but I was lucky to get my first Matecaña specimen only a few days ago. This druse of deep green crystals arranged in an “en echelon” form looks like a vein crossing the black shale.
But the unique feature of this vein is that outside the emerald, no other mineralization is seen. Contrast of the deep green color with the black shale is spectacular, much better in person.
I was told by a miner who works in the Gachalá area that the black shale found in Matecaña is extremely hard – probably due to the high concentration of silica.
( https://www.mineral-forum.com/message-board/viewtopic.php?p=64443#64443 )

An unusual but outstandingly beautiful emerald specimen, congratulations!
Back to top
Reply to topic Reply with quote
Like
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Nov 02, 2018 08:53    Post subject: Re: Collection of Fiebre Verde - Gachalá (#713]  

Tobi wrote:
Fiebre Verde wrote:
The Matecaña mine made the headlines 20 years ago after a pocket full of gastropods was discovered. These were not ordinary fossils - their shells had been “pseudomorphosed” to emerald following the classic process of “mineralization by dissolution/substitution” Never had a chance to have an emerald gastropod in my collection but I was lucky to get my first Matecaña specimen only a few days ago. This druse of deep green crystals arranged in an “en echelon” form looks like a vein crossing the black shale.
But the unique feature of this vein is that outside the emerald, no other mineralization is seen. Contrast of the deep green color with the black shale is spectacular, much better in person.
I was told by a miner who works in the Gachalá area that the black shale found in Matecaña is extremely hard – probably due to the high concentration of silica.
( https://www.mineral-forum.com/message-board/viewtopic.php?p=64443#64443 )

An unusual but outstandingly beautiful emerald specimen, congratulations!

Thanks for your appreciation Tobi!
This is a good illustration of the rich diversity of crystal forms found in the two Colombian emerald belts.
Had a long and tedious photo shooting session due to the ever-changing inclination and direction of the crystal faces.
Incidentally this was a (very) rare instance where I could quickly get a confirmation on the locality. It seems like this specimen came from a non-productive pocket and there was no reason to conceal the locality name.
Back to top
Reply to topic Reply with quote
Like
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 942
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Nov 03, 2018 13:15    Post subject: Re: Collection of Fiebre Verde - Pink Fluorapatite (#6302)  

Pink Fluorapatite from La Marina is a relatively recent find.
Another desirable mineral found in this locality is the Euclase which is rarely seen in combination with the Fluorapatite.
A large pocket of Euclase was found in 2015 and some exceptional specimens could be seen in various US and European mineral shows in 2016.
As for the other local star of the beryllium minerals, it is yet to be found in La Marina, although this locality lies in the heart of the Western Emerald Belt.

The 2 groups of Fluorapatite stand on a druse of white laminar albite (partly iron-stained). Host rock is black shale.



IMG_9951nb.JPG
 Mineral: Fluorapatite, Albite (variety cleavelandite)
 Locality:
La Marina Mine, Municipio Pauna, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 74x29x30mm - Size of the 2 Fluorapatite groups = 21x8mm & 9x9mm
 Description:
 Viewed:  20129 Time(s)

IMG_9951nb.JPG


Back to top
Reply to topic Reply with quote
Like
8
   

Josele




Joined: 10 Apr 2012
Posts: 405
Location: Tarifa, Spain


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Nov 03, 2018 20:59    Post subject: Re: Collection of Fiebre Verde  

Lovely apatite Gérard, and from a unusual locality, thanks for sharing. It's a pleasure this pink touch in your green jungle.
Color and transparency reminds me some Baltistan apatites that are very fluorescent, especially under short wave. Have you checked fluorescence?
Back to top
Reply to topic Reply with quote
Like
1
   
Display posts from previous:   
   Index -> Collection photos and Collector's page   All times are GMT - 5 Hours
Page 33 of 38
  Goto page Previous  1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38  Next  

 
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