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Fiebre Verde

Joined: 11 Sep 2013
Posts: 944
Location: Paris Area



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Posted: Jan 30, 2016 16:00 Post subject: Re: Collection of Fiebre Verde |
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Thanks for the quick feedback Josele.
This is almost embarrassing...
I don't have a UV lamp at hand so no fluorescence test possible before I get one :-(
Also how did I possibly miss these 2 mindat references?
And finally yes, you're correct, I did overlook Pakistan as another possibility.
A big THANK YOU for pointing out these links - that's very interesting!! This might be the light at the end of the tunnel.
It happens that I know personally the owner of this photo gallery. Gives me some hope to narrow down the ID of this specimen to a district, or even better, a locality.
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Fiebre Verde

Joined: 11 Sep 2013
Posts: 944
Location: Paris Area



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Posted: Feb 01, 2016 08:53 Post subject: Re: Collection of Fiebre Verde - Coscuez (#583) |
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Fine beryl from Coscuez.
Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 44x41x23mm, xl=15x9x7mm |
Description: |
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65632 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 44x41x23mm, xl=15x9x7mm |
Description: |
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65694 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 44x41x23mm, xl=15x9x7mm |
Description: |
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65618 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 44x41x23mm, xl=15x9x7mm |
Description: |
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65641 Time(s) |

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Tobi
Site Admin

Joined: 07 Apr 2009
Posts: 4248
Location: Germany



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Posted: Feb 01, 2016 11:21 Post subject: Re: Collection of Fiebre Verde |
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I will never get tired of watching these green gems - please more :)
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Fiebre Verde

Joined: 11 Sep 2013
Posts: 944
Location: Paris Area



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Posted: Feb 01, 2016 11:33 Post subject: Re: Collection of Fiebre Verde |
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Tobi wrote: | I will never get tired of watching these green gems - please more :) |
Thanks Tobi.
It just so happens that there are a few more left :-)
Gérard
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Fiebre Verde

Joined: 11 Sep 2013
Posts: 944
Location: Paris Area



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Posted: Feb 02, 2016 08:57 Post subject: Re: Collection of Fiebre Verde - Gachalá (#274) |
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A large beryl crystal from El Toro, in the Gachalá mining district.
The El Toro mine is located next to the Matecaña tunnel which is known to have produced in the early 00’s the famous emerald gastropods (BTW, for those interested in this topic, some very interesting discussions and photos can be found in this forum).
The material produced from El Toro is frequently coated with a thin film of brown limonite which gives a stunning copper iridescence. In Gachalá, the limonite is formed from the weathering of pyrite.
Obviously the limonite coating has been removed from the beryl but not from the surrounding quartz crystals which I think, improves the overall aesthetic of this specimen (and incidentally makes the photographer’s life much easier).
In the future, I will post more specimens from El Toro where the film of limonite has been completely removed.
Out of all the El Toro crystals I have seen, the vast majority were light green and opaque. This one has a good luster and some degree of transparency in the upper part.
Mineral: | Beryl (variety emerald), Quartz |
Locality: | Gachalá mining district, El Toro Mine, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia |  |
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Dimensions: | 37x48x41mm, xl=17x20mm |
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Viewed: |
65455 Time(s) |

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Mineral: | Beryl (variety emerald), Quartz |
Locality: | Gachalá mining district, El Toro Mine, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia |  |
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Dimensions: | 37x48x41mm, xl=17x20mm |
Description: |
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Viewed: |
65544 Time(s) |

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Mineral: | Beryl (variety emerald), Quartz |
Locality: | Gachalá mining district, El Toro Mine, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia |  |
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Dimensions: | 37x48x41mm, xl=17x20mm |
Description: |
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Viewed: |
65531 Time(s) |

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Fiebre Verde

Joined: 11 Sep 2013
Posts: 944
Location: Paris Area



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Posted: Feb 03, 2016 15:45 Post subject: Re: Collection of Fiebre Verde - Gachalá (#575) |
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Another specimen from an unknown locality of the Gachalá district.
The beryl crystal features 2 planar surfaces, a light green surface and a dark green surface.
The light green one is actually a contact plane.
The darker one is a bit more challenging - the step-like tabular patterns might suggest that the whole surface is actually a system of complex terminations.
I have never seen anything like this at this scale - looking for your suggestions and ideas!
Sorry for the quality of the close-ups - I tried again and again, but could not get anything better :-(
Host rock is black shale.
Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Gachalá mining district, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia |  |
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Dimensions: | 55x36x35mm, xl=24x20mm |
Description: |
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Viewed: |
65384 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Gachalá mining district, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia |  |
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Dimensions: | 55x36x35mm, xl=24x20mm |
Description: |
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Viewed: |
65420 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Gachalá mining district, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia |  |
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Dimensions: | 55x36x35mm, xl=24x20mm |
Description: |
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Viewed: |
65405 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Gachalá mining district, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia |  |
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Dimensions: | 55x36x35mm, xl=24x20mm |
Description: |
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Viewed: |
65432 Time(s) |

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Fiebre Verde

Joined: 11 Sep 2013
Posts: 944
Location: Paris Area



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Posted: Feb 05, 2016 06:09 Post subject: Re: Collection of Fiebre Verde - La Pita (#259) |
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Aggregate of 5 crystals from the La Pita district - all double terminated.
Host rock is black shale.
Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 27x40x31mm, aggregate=15x13mm |
Description: |
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65312 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 27x40x31mm, aggregate=15x13mm |
Description: |
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65319 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 27x40x31mm, aggregate=15x13mm |
Description: |
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Viewed: |
65332 Time(s) |

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Fiebre Verde

Joined: 11 Sep 2013
Posts: 944
Location: Paris Area



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Posted: Feb 06, 2016 16:10 Post subject: Re: Collection of Fiebre Verde - Peñas Blancas (#546) |
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The iron-stained creamy calcite combined with the clear quartz and the velvety blue-green emeralds makes this specimen unmistakably from Peñas Blancas.
The calcite and the emeralds are dusted with brownish-black goethite.
Host rock is black shale.
Mineral: | Beryl (variety emerald), Calcite, Quartz, Goethite |
Locality: | Peñas Blancas Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 49x52x70mm, main xl=7x4mm |
Description: |
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65254 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Quartz, Goethite |
Locality: | Peñas Blancas Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 49x52x70mm, main xl=7x4mm |
Description: |
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Viewed: |
65208 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Quartz, Goethite |
Locality: | Peñas Blancas Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 49x52x70mm, main xl=7x4mm |
Description: |
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Viewed: |
65208 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Quartz, Goethite |
Locality: | Peñas Blancas Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 49x52x70mm, main xl=7x4mm |
Description: |
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Viewed: |
65204 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Quartz, Goethite |
Locality: | Peñas Blancas Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 49x52x70mm, main xl=7x4mm |
Description: |
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Viewed: |
65235 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Quartz, Goethite |
Locality: | Peñas Blancas Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 49x52x70mm, main xl=7x4mm |
Description: |
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Viewed: |
65266 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Quartz, Goethite |
Locality: | Peñas Blancas Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 49x52x70mm, main xl=7x4mm |
Description: |
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Viewed: |
65210 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Quartz, Goethite |
Locality: | Peñas Blancas Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 49x52x70mm, main xl=7x4mm |
Description: |
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Viewed: |
65254 Time(s) |

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Fiebre Verde

Joined: 11 Sep 2013
Posts: 944
Location: Paris Area



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Posted: Feb 07, 2016 16:20 Post subject: Re: Collection of Fiebre Verde - Peñas Blancas (#15) |
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Coating of botryoidal white calcite with clear quartz crystals.
Host rock is fine-grained argillite shale.
Peñas Blancas is the northernmost locality of the Western Emerald Belt.
It's located about 10km north-northeast of the Coscuez district.
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: | 105x130x50mm, largest xl=18mm |
Description: |
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Viewed: |
65135 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: | 105x130x50mm, largest xl=18mm |
Description: |
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Viewed: |
65210 Time(s) |

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Fiebre Verde

Joined: 11 Sep 2013
Posts: 944
Location: Paris Area



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Posted: Feb 08, 2016 16:09 Post subject: Re: Collection of Fiebre Verde - Chivor (#90) |
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Host rock is fine-grained grey shale.
Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 56x63x43mm, xl=30x7mm |
Description: |
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Viewed: |
65142 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 56x63x43mm, xl=30x7mm |
Description: |
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Viewed: |
65110 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 56x63x43mm, xl=30x7mm |
Description: |
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Viewed: |
65123 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 56x63x43mm, xl=30x7mm |
Description: |
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Viewed: |
65104 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 56x63x43mm, xl=30x7mm |
Description: |
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Viewed: |
65087 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 56x63x43mm, xl=30x7mm |
Description: |
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Viewed: |
65084 Time(s) |

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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 56x63x43mm, xl=30x7mm |
Description: |
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Viewed: |
65043 Time(s) |

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Fiebre Verde

Joined: 11 Sep 2013
Posts: 944
Location: Paris Area



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Posted: Feb 11, 2016 10:39 Post subject: Re: Collection of Fiebre Verde - Chivor (#303) |
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Fine beryl crystals from Chivor.
These complex pyramidal terminations are not uncommon in the Eastern Belt.
I don't have much information on the locality but I would not be surprised if this specimen was from El Oriente mine.
Mineral: | Beryl (variety emerald), Calcite, Dolomite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 78x40x34mm, xls=12 & 11mm |
Description: |
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Viewed: |
58902 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: | 78x40x34mm, xls=12 & 11mm |
Description: |
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Viewed: |
58867 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: | 78x40x34mm, xls=12 & 11mm |
Description: |
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Viewed: |
58897 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: | 78x40x34mm, xls=12 & 11mm |
Description: |
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Viewed: |
58893 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: | 78x40x34mm, xls=12 & 11mm |
Description: |
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Viewed: |
58849 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: | 78x40x34mm, xls=12 & 11mm |
Description: |
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Viewed: |
58905 Time(s) |

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Mineral: | Beryl (Var. Emerald), Calcite, Dolomite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 78x40x34mm, xls=12 & 11mm |
Description: |
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Viewed: |
58958 Time(s) |

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Fiebre Verde

Joined: 11 Sep 2013
Posts: 944
Location: Paris Area



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Posted: Feb 12, 2016 04:09 Post subject: Re: Collection of Fiebre Verde - Chivor (#194) |
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This is another example that illustrates the broadness and variety of the Chivor emeralds. Associations, color, termination and crystal form, the Chivor district has a lot going for it!
These emerald aggregates were recovered from a pocket discovered in the late 00's.
Host rock is grey limestone shale.
This specimen is from a locality which does not appear in the list
Chivor mining district, Mina Piedra de Chulo, Municipio Chivor, Eastern Emerald Belt, Boyacá
I would be grateful if a site admin could maybe update the list. Thanks!
Mineral: | Beryl (variety emerald), Calcite, Dolomite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 100x80x50mm, largest aggregate=17x13mm |
Description: |
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Viewed: |
58849 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: | 100x80x50mm, largest aggregate=17x13mm |
Description: |
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Viewed: |
58899 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: | 100x80x50mm, largest aggregate=17x13mm |
Description: |
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Viewed: |
58836 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: | 100x80x50mm, largest aggregate=17x13mm |
Description: |
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Viewed: |
58892 Time(s) |

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Fiebre Verde

Joined: 11 Sep 2013
Posts: 944
Location: Paris Area



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Posted: Feb 14, 2016 08:06 Post subject: Re: Collection of Fiebre Verde - Chivor (#243) |
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Host rock is grey limestone shale.
Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 58x65x50mm, xl=30mm |
Description: |
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Viewed: |
58719 Time(s) |

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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 58x65x50mm, xl=30mm |
Description: |
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Viewed: |
58692 Time(s) |

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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia |  |
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Dimensions: | 58x65x50mm, xl=30mm |
Description: |
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Viewed: |
58706 Time(s) |

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Fiebre Verde

Joined: 11 Sep 2013
Posts: 944
Location: Paris Area



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Posted: Feb 15, 2016 10:12 Post subject: Re: Collection of Fiebre Verde - Gachalá (#198) |
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A short while ago I had posted a specimen coated with a thin film of brown limonite (February 2).
Here is another specimen from the same mine where the limonite has been (almost) completely removed.
All these El Toro limonite-coated specimens have been recovered from the same pocket in 2008. And because of the limited size of this pocket, handcrafted specimens in the form of intergrown clusters flooded the market in the late 00's. Floaters were simply glued and covered with a film of limonite.
Mineral: | Beryl (variety emerald) |
Locality: | Gachalá mining district, El Toro Mine, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia |  |
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Dimensions: | 73x49x41mm |
Description: |
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Viewed: |
58708 Time(s) |

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Mineral: | Beryl (variety emerald) |
Locality: | Gachalá mining district, El Toro Mine, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia |  |
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Dimensions: | 73x49x41mm |
Description: |
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Viewed: |
58647 Time(s) |

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Pierre Joubert
Joined: 09 Mar 2012
Posts: 1605
Location: Western Cape



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Posted: Feb 15, 2016 10:31 Post subject: Re: Collection of Fiebre Verde |
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Hi Gerard. I find this specimen 'IMG_4240nb.JPG' very interesting.
_________________ Pierre Joubert
'The tree of silence bears the fruit of peace. ' |
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