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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4112
Location: Germany
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Posted: May 21, 2017 02:06 Post subject: Re: Collection of Fiebre Verde |
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Though the emerald crystals are not gemmy and some of them have broken terminations, this specimen is very aesthetic, I like how the crystals are scattered on the piece and how the pyrite adds a contrast with a golden touch ;-)
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: May 21, 2017 13:14 Post subject: Re: Collection of Fiebre Verde |
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Tobi wrote: | Though the emerald crystals are not gemmy and some of them have broken terminations, this specimen is very aesthetic, I like how the crystals are scattered on the piece and how the pyrite adds a contrast with a golden touch ;-) |
Glad to know you like this specimen Tobi!
Pyrite aggregates are more often found in the Chivor area than in the Western Belt (Muzo-Coscuez-La Pita).
In the Chivor area, El Oriente and El Acuario, which are just a few hundred meters apart, are the 2 mines where the most spectacular combinations of Emeralds and Pyrite aggregates are found.
I totally share your opinion – I love the aesthetics of this specimen despite the average quality of the beryls (actually the color is much nicer in person!).
But, as you said, what makes it attractive is the balance between the emeralds, the pyrite, and the patches of limonite across the entire piece.
Also, and that’s not a given, all the beryl crystals look pretty much alike color wise.
There is a little story behind this specimen.
It comes from an old find at… the emerald museum in Bogota!
After discussing with the owner of this private museum, I realized that he was actually willing to sell some of the specimens on display.
And this is how I managed to get some “museum pieces” at a very reasonable price.
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Jun 08, 2017 13:40 Post subject: Re: Collection of Fiebre Verde - La Marina (#6005) |
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This specimen was self-collected by a friend in the La Marina mine last week.
La Marina is better known for its Euclase and pink Apatite.
La Marina also produces emerald in very small quantity.
Euclase mixes with Apatite but never with Emerald - sometime they are found just a few cm apart.
Mineral: | Barite, Calcite |
Locality: | La Marina Mine, Municipio Pauna, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 14x21x12mm |
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Viewed: |
29723 Time(s) |
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Mineral: | Barite, Calcite |
Locality: | La Marina Mine, Municipio Pauna, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 14x21x12mm |
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Viewed: |
29759 Time(s) |
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Mineral: | Barite, Calcite |
Locality: | La Marina Mine, Municipio Pauna, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 14x21x12mm |
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29724 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Jun 09, 2017 16:41 Post subject: Re: Collection of Fiebre Verde - Lilac Blue Dolomite from Muzo (#6400) |
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Blue Dolomite is not uncommon in both Emerald belts.
In the Eastern Belt (Piedra de Chulo), the blue dolomite takes the form of grey-blue flattened rhombohedral centimetric crystals.
In the Western Belt (Muzo and La Pita), it takes the form of irregular aggregates and has a very attractive lilac blue cast.
Host rock is a fine-grained black shale.
Mineral: | Dolomite, Calcite, Pyrite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 123x82x39mm |
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29642 Time(s) |
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Mineral: | Dolomite, Calcite, Pyrite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 123x82x39mm |
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Viewed: |
29640 Time(s) |
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Mineral: | Dolomite, Calcite, Pyrite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 123x82x39mm |
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Viewed: |
29667 Time(s) |
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Mineral: | Dolomite, Calcite, Pyrite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 123x82x39mm |
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29622 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4112
Location: Germany
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Posted: Jun 10, 2017 02:11 Post subject: Re: Collection of Fiebre Verde - Lilac Blue Dolomite from Muzo (#6400) |
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Fiebre Verde wrote: | Blue Dolomite is not uncommon in both Emerald belts [...] In the Western Belt (Muzo and La Pita), it takes the form of irregular aggregates and has a very attractive lilac blue cast [...] | Fiebre azul now instead of fiebre verde? ;-)
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Jun 11, 2017 09:03 Post subject: Re: Collection of Fiebre Verde - Lilac Blue Dolomite from Muzo (#6400) |
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Tobi wrote: | Fiebre Verde wrote: | Blue Dolomite is not uncommon in both Emerald belts [...] In the Western Belt (Muzo and La Pita), it takes the form of irregular aggregates and has a very attractive lilac blue cast [...] | Fiebre azul now instead of fiebre verde? ;-) |
... not quite Tobi :-)
But I like blue too and was tempted to add that blue dolomite from the Eastern Belt in my collection to create a balance with the Muzo one. Well, another time...
In Piedra de Chulo, the blue dolomite takes the form of grey-blue flattened rhombohedral centimetric crystals.
Oh, by the way, Piedra de Chulo material is often used as host rock for fake specimens.
It's due to the large well-shaped crystals (Dolomite, Calcite, Pyrite) it usually comes with.
I am yet to see blue dolomite and emerald side by side.
Fiebre Verdazul
Mineral: | Dolomite, Calcite |
Locality: | Chivor mining district, Piedra de Chulo Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 15cm across |
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29581 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Jun 12, 2017 15:23 Post subject: Re: Collection of Fiebre Verde - Muzo (#653) |
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Lagoon green crystals partly covered with a film of tiny calcite crystals.
Host rock is black shale.
Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 90x45x58mm, main xl=16x11mm |
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29478 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 90x45x58mm, main xl=16x11mm |
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29465 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Jun 17, 2017 12:27 Post subject: Re: Collection of Fiebre Verde - Cunas (#655) |
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Cunas keeps producing fine material.
Basal pinacoid face is heavily etched, revealing many cavities.
White calcite, on black shale.
Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 43x63x56mm, xl=10x6mm |
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29350 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 43x63x56mm, xl=10x6mm |
Description: |
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Viewed: |
29345 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 43x63x56mm, xl=10x6mm |
Description: |
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Viewed: |
29318 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 43x63x56mm, xl=10x6mm |
Description: |
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Viewed: |
29328 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 43x63x56mm, xl=10x6mm |
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Viewed: |
29373 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Jun 20, 2017 08:43 Post subject: Re: Collection of Fiebre Verde - Chivor (#656) |
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Upper half of the beryl crystal is translucent.
Calcite, on highly oxidized brecciated matrix.
Mineral: | Beryl (variety emerald), Calcite |
Locality: | Chivor mining district, Porvenir Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 65x87x77mm, main xl=43mm |
Description: |
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Viewed: |
29213 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Chivor mining district, Porvenir Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 65x87x77mm, main xl=43mm |
Description: |
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Viewed: |
29218 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Chivor mining district, Porvenir Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 65x87x77mm, main xl=43mm |
Description: |
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Viewed: |
29264 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Chivor mining district, Porvenir Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 65x87x77mm, main xl=43mm |
Description: |
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Viewed: |
29256 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Jun 24, 2017 14:25 Post subject: Re: Collection of Fiebre Verde - Chivor (#657) |
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Grey calcite rhombs, white laminar albite, oxidized pyrite.
Heavily etched basal pinacoid face.
Host rock is black shale.
Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 51x18x21mm, xl=5mm |
Description: |
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Viewed: |
29068 Time(s) |
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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 51x18x21mm, xl=5mm |
Description: |
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Viewed: |
29092 Time(s) |
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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 51x18x21mm, xl=5mm |
Description: |
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Viewed: |
29193 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Jun 27, 2017 11:05 Post subject: Re: Collection of Fiebre Verde - La Pita (#658) |
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Small aggregate from La Pita.
Host rock is black shale.
Mineral: | Beryl (variety emerald), Calcite, Dolomite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 28x36x19mm, aggregate=6x9mm |
Description: |
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Viewed: |
29016 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Dolomite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 28x36x19mm, aggregate=6x9mm |
Description: |
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Viewed: |
29055 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Dolomite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 28x36x19mm, aggregate=6x9mm |
Description: |
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Viewed: |
29075 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Jul 21, 2017 09:22 Post subject: Re: Collection of Fiebre Verde - Cunas (#661) |
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Basal pinacoid face is etched, revealing many cavities.
Host rock is black shale.
Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 37x41x24mm, xl=9mm |
Description: |
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Viewed: |
28743 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 37x41x24mm, xl=9mm |
Description: |
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Viewed: |
28704 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 37x41x24mm, xl=9mm |
Description: |
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Viewed: |
28738 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Jul 25, 2017 11:38 Post subject: Re: Collection of Fiebre Verde - Chivor (#660) |
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Translucent beryl crystal on oxidized black shale.
Probably from Buenavista Mine.
Mineral: | Beryl (variety emerald), Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 19x25x17mm, xl=7mm |
Description: |
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Viewed: |
28552 Time(s) |
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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 19x25x17mm, xl=7mm |
Description: |
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Viewed: |
28550 Time(s) |
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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 19x25x17mm, xl=7mm |
Description: |
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Viewed: |
28567 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Jul 29, 2017 03:35 Post subject: Re: Collection of Fiebre Verde - Chivor (#662) |
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On black shale.
Mineral: | Beryl (variety emerald), Calcite, Dolomite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 32x41x31mm, xl=15mm |
Description: |
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Viewed: |
28418 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Dolomite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 32x41x31mm, xl=15mm |
Description: |
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Viewed: |
28457 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Dolomite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 32x41x31mm, xl=15mm |
Description: |
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Viewed: |
28480 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Aug 07, 2017 14:00 Post subject: Re: Collection of Fiebre Verde - Peñas Blancas (#659) |
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Not easy to go back to real life...
Not exactly an XXL specimen but it's real and can be found in other places than museums.
Combination of clear quartz and emerald aggregate.
Host rock is fine-grained dolomitic limestone.
Mineral: | Beryl (variety emerald), Calcite, Quartz |
Locality: | Peñas Blancas Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 43x30x34mm, aggregate with xls up to 10mm |
Description: |
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Viewed: |
28278 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Quartz |
Locality: | Peñas Blancas Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 43x30x34mm, aggregate with xls up to 10mm |
Description: |
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Viewed: |
28254 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Quartz |
Locality: | Peñas Blancas Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 43x30x34mm, aggregate with xls up to 10mm |
Description: |
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28203 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Aug 08, 2017 12:43 Post subject: Re: Collection of Fiebre Verde - Sodalite (#8700) |
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Something different for a change :-)
A specimen I brought from one of my numerous trips to Southern Africa.
Quartz veins running through the specimen.
Mineral: | Sodalite, Quartz |
Locality: | Sodalite Mine, Orotumba, Swartbooisdrif, Kunene Region, Namibia | |
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Dimensions: | 82x74x43mm |
Description: |
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Viewed: |
28134 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Aug 11, 2017 02:30 Post subject: Re: Collection of Fiebre Verde - Chivor (#663) |
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Palo Arañado crystal exhibiting a polycrystalline termination
Mineral: | Beryl (variety emerald) |
Locality: | Chivor mining district, Palo Arañado Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 16mm |
Description: |
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Viewed: |
27922 Time(s) |
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Mineral: | Beryl (variety emerald) |
Locality: | Chivor mining district, Palo Arañado Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 16mm |
Description: |
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Viewed: |
27975 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4112
Location: Germany
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Posted: Aug 11, 2017 09:53 Post subject: Re: Collection of Fiebre Verde |
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Great photos of the last one, perfect use of light!
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Aug 12, 2017 05:39 Post subject: Re: Collection of Fiebre Verde |
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Tobi wrote: | Great photos of the last one, perfect use of light! |
Thanks Tobi!
Had the same kind of horror trip as yours with the Dalnegorsk Sphalerite, trying as many whitish backgrounds as possible, but the resulting color didn't not look right.
No matter the background color, working out the optimal lighting conditions always requires time and patience for these small crystals, at least for me.
Gérard
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ploum
Joined: 12 Nov 2007
Posts: 1393
Location: Near Annecy
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Posted: Aug 12, 2017 10:11 Post subject: Re: Collection of Fiebre Verde |
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Take all and come near annecy ;).
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