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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: |
59073 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: |
59038 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: |
59068 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: |
59064 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: |
59020 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 |
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| Viewed: |
59077 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 |
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| Viewed: |
59129 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 |
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| Viewed: |
59020 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: |
59071 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: |
59007 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: |
59064 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: |
58890 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: |
58864 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: |
58877 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: |
58880 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: |
58818 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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Fiebre Verde
Joined: 11 Sep 2013
Posts: 944
Location: Paris Area
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| Posted: Feb 15, 2016 11:24 Post subject: Re: Collection of Fiebre Verde |
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| Pierre Joubert wrote: | | Hi Gerard. I find this specimen 'IMG_4240nb.JPG' very interesting. |
Thanks for sharing your appreciation Pierre!
In the 2 emerald belts, emerald-bearing veins are almost always tightly associated with either pyrite, quartz, albite, calcite or dolomite (or any combination)
The 2 districts where I have seen emerald crystals (or crystal forms) not in contact with other minerals are Muzo (on black shale, see IMG_0281 of January 7) and Chivor (on grey limestone shale).
Without having the big picture, it's difficult to figure out how the associated minerals are distributed in those emerald-bearing veins.
I will post more Chivor aggregates in the future (need to find them first...)
Gérard
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 944
Location: Paris Area
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| Posted: Feb 16, 2016 14:21 Post subject: Re: Collection of Fiebre Verde - Chivor (#269) |
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A special specimen - each beryl crystal is unique (termination, color, form).
| Mineral: | Beryl (variety emerald), Calcite, Dolomite, Pyrite |
| Locality: | | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 69x57x38mm, xls up to 10mm |
| Description: |
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| Viewed: |
58329 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: | 69x57x38mm, xls up to 10mm |
| Description: |
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| Viewed: |
58385 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: | 69x57x38mm, xls up to 10mm |
| Description: |
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| Viewed: |
58365 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: | 69x57x38mm, xls up to 10mm |
| Description: |
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| Viewed: |
58323 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: | 69x57x38mm, xls up to 10mm |
| Description: |
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| Viewed: |
58351 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: | 69x57x38mm, xls up to 10mm |
| Description: |
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| Viewed: |
58317 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: | 69x57x38mm, xls up to 10mm |
| Description: |
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| Viewed: |
58333 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: | 69x57x38mm, xls up to 10mm |
| Description: |
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| Viewed: |
58340 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: | 69x57x38mm, xls up to 10mm |
| Description: |
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| Viewed: |
58289 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: | 69x57x38mm, xls up to 10mm |
| Description: |
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| Viewed: |
58304 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 944
Location: Paris Area
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| Posted: Feb 17, 2016 15:09 Post subject: Re: Collection of Fiebre Verde - N'Chwaning Rhodochrosite (#7010) |
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Scalenohedral ‘wheat sheaf’ rhodochrosite clusters on a manganite matrix.
All the FMF members who have been silently suffering week after week from the green fever (aka Fiebre Verde) deserve a little break. So let's see life through rose-tinted spectacles for a change.
Today, N’Chwaning rhodos are far much rarer than Colombian emeralds and specimens exhibiting the ‘wheat sheaf’ habit are even more rare.
I wish I could pursue this ‘pink’ mineralogical journey but I’m afraid I will have to move back soon to greener pastures!
| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 64x37x27mm |
| Description: |
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| Viewed: |
58278 Time(s) |
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| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 64x37x27mm |
| Description: |
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| Viewed: |
58192 Time(s) |
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| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 64x37x27mm |
| Description: |
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| Viewed: |
58251 Time(s) |
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| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 64x37x27mm |
| Description: |
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| Viewed: |
58175 Time(s) |
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| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 64x37x27mm |
| Description: |
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| Viewed: |
58239 Time(s) |
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Jamison Brizendine
Joined: 27 Feb 2014
Posts: 128
Location: Northeast Ohio
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| Posted: Feb 17, 2016 16:02 Post subject: Re: Collection of Fiebre Verde |
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| Wonderful Rhodochrosite, Gérard!
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 944
Location: Paris Area
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| Posted: Feb 17, 2016 16:42 Post subject: Re: Collection of Fiebre Verde |
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| Jamison Brizendine wrote: | | Wonderful Rhodochrosite, Gérard! |
Thanks for your appreciation Jamison!
Gérard
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 944
Location: Paris Area
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| Posted: Feb 20, 2016 07:09 Post subject: Re: Collection of Fiebre Verde - N'Chwaning Rhodochrosite (#7008) |
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From pink to burgundy red.
Compact aggregates of deep to very deep burgundy red scalenohedral crystals.
Metallic-bright, black manganite blades cover the manganite matrix.
| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 38x39x28mm |
| Description: |
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| Viewed: |
59489 Time(s) |
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| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 38x39x28mm |
| Description: |
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| Viewed: |
59465 Time(s) |
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| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 38x39x28mm |
| Description: |
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| Viewed: |
59440 Time(s) |
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| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 38x39x28mm |
| Description: |
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| Viewed: |
59461 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 944
Location: Paris Area
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| Posted: Feb 21, 2016 05:45 Post subject: Re: Collection of Fiebre Verde - N'Chwaning Rhodochrosite (#7012) |
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... and back to pink!
Scalenohedral 'wheat-sheaf' rhodochrosite crystals arranged in spherical aggregates on a manganite matrix.
Crystals have pale pink cloudy centers and red gem clear tips.
| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 39x29x27mm |
| Description: |
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| Viewed: |
59374 Time(s) |
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| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 39x29x27mm |
| Description: |
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| Viewed: |
59367 Time(s) |
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| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 39x29x27mm |
| Description: |
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| Viewed: |
59389 Time(s) |
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| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 39x29x27mm |
| Description: |
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| Viewed: |
59438 Time(s) |
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| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 39x29x27mm |
| Description: |
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| Viewed: |
59361 Time(s) |
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| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 39x29x27mm |
| Description: |
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| Viewed: |
59336 Time(s) |
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| Mineral: | Rhodochrosite, Manganite |
| Locality: | | N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
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| Dimensions: | 39x29x27mm |
| Description: |
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| Viewed: |
59365 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4248
Location: Germany
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| Posted: Feb 21, 2016 09:19 Post subject: Re: Collection of Fiebre Verde |
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Quite strange to see something not green in your thread ;-)
But the specimens and photos are good as well!
Tobi
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 944
Location: Paris Area
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| Posted: Feb 21, 2016 10:13 Post subject: Re: Collection of Fiebre Verde - Cunas (#483) |
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| Tobi wrote: | Quite strange to see something not green in your thread ;-)
But the specimens and photos are good as well!
Tobi |
Thanks Tobi.
I spent time tidying and sorting out my inventory lately and I am afraid I have been sidetracked from my usual threads. But now am ready to get back to my favorite mineral/variety.
For a soft landing into the green, I thought I could start on a more geological note with a small (tiny) chunk of an emerald-bearing vein.
Emerald mineralization of Colombia occurs in carbonate-pyrite veins and breccia and this La Pita specimen is a good example of the in-situ conditions prevailing when mining the emeralds.
A few patches of black shale are visible.
| Mineral: | Beryl (variety emerald), Calcite, Pyrite |
| Locality: | | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 80x40x90mm - xls up to 8mm |
| Description: |
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| Viewed: |
59291 Time(s) |
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| Mineral: | Beryl (variety emerald), Calcite, Pyrite |
| Locality: | | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 80x40x90mm - xls up to 8mm |
| Description: |
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| Viewed: |
59307 Time(s) |
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| Mineral: | Beryl (variety emerald), Calcite, Pyrite |
| Locality: | | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 80x40x90mm - xls up to 8mm |
| Description: |
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| Viewed: |
59348 Time(s) |
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chris
Site Admin
Joined: 12 Jul 2007
Posts: 538
Location: Grenoble
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| Posted: Feb 21, 2016 12:18 Post subject: Re: Collection of Fiebre Verde |
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Hi,
Didn't know you had turned red lately. Great rhodo & always a pleasure to have a look at some beryls. Looking forward the other ones.
Christophe
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