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Firmo Espinar
Joined: 05 Apr 2017
Posts: 763
Location: Medellín, Colombia.
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Posted: Apr 29, 2017 00:04 Post subject: Re: Collection of Fiebre Verde |
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Paris surprise!!
Amazing found specimen!!!.
Thank you for your valuable humor.
Very free, clean and air crystal.
I just have a little question for you. Cat´s eye effect is the different quality along the crystal?? Gem quality only in its upper part?
Regards.
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: Apr 29, 2017 08:21 Post subject: Re: Collection of Fiebre Verde |
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franjungle wrote: |
I just have a little question for you. Cat´s eye effect is the different quality along the crystal?? Gem quality only in its upper part?
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Hello Firmo,
Thanks for your appreciation - these special specimens do not come up very often.
As per your question,
In the attached image I tried to grasp the very subtle tubes which run parallel to the C-axis, but to no success. They can be noticed in the cleanest part of the crystal (last 5mm), under proper lighting and orientation .
These tubes might indicate cat's eyes and the only way to confirm this observation is to cut the crystal along the C-axis (Which I am not yet prepared to do).
Gérard
Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
Locality: | Chivor mining district, Palo Arañado Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | crystal=45mm |
Description: |
The clear part of the crystal is about 5mm long. |
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27717 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2897
Location: Arkansas
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Posted: Apr 29, 2017 11:47 Post subject: Re: Collection of Fiebre Verde |
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Fiebre Verde wrote: | franjungle wrote: |
I just have a little question for you. Cat´s eye effect is the different quality along the crystal?? Gem quality only in its upper part?
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Hello Firmo,
Thanks for your appreciation - these special specimens do not come up very often.
As per your question,
In the attached image I tried to grasp the very subtle tubes which run parallel to the C-axis, but to no success. They can be noticed in the cleanest part of the crystal (last 5mm), under proper lighting and orientation .
These tubes might indicate cat's eyes and the only way to confirm this observation is to cut the crystal along the C-axis (Which I am not yet prepared to do).
Gérard |
Gérard,
I have an Aquamarine that has tubes similar to your Emerald.
Regards,
Don
_________________ hogwild |
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Philippe Durand
Joined: 10 May 2016
Posts: 642
Location: Normandie
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Posted: Apr 29, 2017 12:43 Post subject: Re: Collection of Fiebre Verde |
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this is a great specimen !
congratulations, bravo !
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: Apr 29, 2017 12:53 Post subject: Re: Collection of Fiebre Verde |
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Don Lum wrote: | Fiebre Verde wrote: | franjungle wrote: |
I just have a little question for you. Cat´s eye effect is the different quality along the crystal?? Gem quality only in its upper part?
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Hello Firmo,
Thanks for your appreciation - these special specimens do not come up very often.
As per your question,
In the attached image I tried to grasp the very subtle tubes which run parallel to the C-axis, but to no success. They can be noticed in the cleanest part of the crystal (last 5mm), under proper lighting and orientation .
These tubes might indicate cat's eyes and the only way to confirm this observation is to cut the crystal along the C-axis (Which I am not yet prepared to do).
Gérard |
Gérard,
I have an Aquamarine that has tubes similar to your Emerald.
Regards,
Don |
Thanks for the input Don!
Talking about beryls, my understanding is that cat's eye is not so uncommon with aquamarines and emeralds.
Trapiche emeralds often exhibit cat's eye but the phenomenon is very rarely observed on rough specimens.
Once the presence of tubes is confirmed by the stone cutter, the crystal has to be cut and faceted in an optimal way to coax out the cat's eye effect.
Regards
Gérard
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: Apr 29, 2017 13:12 Post subject: Re: Collection of Fiebre Verde |
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Philippe Durand wrote: | this is a great specimen !
congratulations, bravo ! |
Merci Philippe!
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Firmo Espinar
Joined: 05 Apr 2017
Posts: 763
Location: Medellín, Colombia.
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Posted: Apr 29, 2017 15:35 Post subject: Re: Collection of Fiebre Verde |
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Thanks very much for your complete reasons Gérard. I understood.
Ok please, as you say, don´t use invasive therapies for such a demonstration.
Also you have already answered to the following question. This effect determine the work of the crystals cutter.
And fine pictures.
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: Apr 29, 2017 15:46 Post subject: Re: Collection of Fiebre Verde |
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franjungle wrote: |
And fine pictures. |
Thank you Firmo!
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: May 01, 2017 13:43 Post subject: Re: Collection of Fiebre Verde - La Pita (#651) |
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Double terminated crystal from the La Pita deposit.
Lustrous dolomite and calcite set in a brecciated matrix with patches of 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: | 40x43x29mm, xl=22mm |
Description: |
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27453 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: | 40x43x29mm, xl=22mm |
Description: |
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27452 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: May 02, 2017 16:59 Post subject: Re: Collection of Fiebre Verde - Cunas (#26) |
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The Cunas mine and more generally the La Pita district is well known for the vivid grass green color of the beryl crystals produced in that area.
This specimen is a good example of this color but unfortunately grass green is difficult to render properly with digital cameras (Specially when combined with below average photographic skills).
Mineral: | Beryl (variety emerald), Calcite, Muscovite |
Locality: | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 40x63x47mm, largest xl=14x11mm |
Description: |
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27347 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Muscovite |
Locality: | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 40x63x47mm, largest xl=14x11mm |
Description: |
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Viewed: |
27347 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Muscovite |
Locality: | La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 40x63x47mm, largest xl=14x11mm |
Description: |
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27366 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: May 04, 2017 15:03 Post subject: Re: Collection of Fiebre Verde - Muzo (#71) |
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Small aggregate with quartz from Muzo.
Mineral: | Beryl (variety emerald), Quartz |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 33x24x22mm, xls up to 10mm |
Description: |
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27239 Time(s) |
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Mineral: | Beryl (variety emerald), Quartz |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 33x24x22mm, xls up to 10mm |
Description: |
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Viewed: |
27264 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: May 07, 2017 08:31 Post subject: Re: Collection of Fiebre Verde - Muzo (#504) |
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Small floater aggregate from Muzo.
Presence of carbonaceous inclusions in the lower part of the aggregate.
A milestone has been reached today with the 300th emerald specimen posted in this thread.
The journey to the land of the green beryl is not over. Stay tuned :-)
Mineral: | Beryl (variety emerald) |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 12x16mm |
Description: |
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Viewed: |
27160 Time(s) |
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Mineral: | Beryl (variety emerald) |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 12x16mm |
Description: |
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Viewed: |
27179 Time(s) |
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Mineral: | Beryl (variety emerald) |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 12x16mm |
Description: |
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Viewed: |
27206 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2897
Location: Arkansas
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Posted: May 07, 2017 13:05 Post subject: Re: Collection of Fiebre Verde |
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Beautiful emerald cluster, Gerard. Congratulations.
Don
_________________ hogwild |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: May 07, 2017 16:40 Post subject: Re: Collection of Fiebre Verde |
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Don Lum wrote: | Beautiful emerald cluster, Gerard. Congratulations.
Don |
Thank you for your appreciation Don!
Gérard
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: May 09, 2017 14:19 Post subject: Re: Collection of Fiebre Verde - Chivor (#652) |
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Typical Chivor grey limestone shale coated with a bed of snowy white aggregate of calcite.
Color zoning is not unusual in Chivor emeralds.
Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, El Oriente Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 59x50x33mm, xl=8mm |
Description: |
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Viewed: |
27015 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, El Oriente Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 59x50x33mm, xl=8mm |
Description: |
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Viewed: |
26978 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, El Oriente Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 59x50x33mm, xl=8mm |
Description: |
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Viewed: |
27035 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, El Oriente Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 59x50x33mm, xl=8mm |
Description: |
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Viewed: |
26999 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, El Oriente Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 59x50x33mm, xl=8mm |
Description: |
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Viewed: |
26998 Time(s) |
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Pierre Joubert
Joined: 09 Mar 2012
Posts: 1605
Location: Western Cape
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Posted: May 09, 2017 14:29 Post subject: Re: Collection of Fiebre Verde |
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Hi Gérard, I can only imagine the joy of finding something like this:-)
_________________ Pierre Joubert
'The tree of silence bears the fruit of peace. ' |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: May 10, 2017 06:01 Post subject: Re: Collection of Fiebre Verde |
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Pierre Joubert wrote: | Hi Gérard, I can only imagine the joy of finding something like this:-) |
Hi Pierre,
You are spot on :-)
Difficult to describe the joy of finding such specimens and the surprise of rediscovering them years after.
With over 10-15 years' hindsight, some of my specimens look certainly very different.
Gérard
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: May 14, 2017 14:13 Post subject: Re: Collection of Fiebre Verde - Chivor (#304) |
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Usually specimens of this size are broken into several pieces and trimmed but for some reason this one escaped its fate.
Host rock is a laminated limestone shale.
Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 107x95x40mm, xls upto 10mm |
Description: |
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Viewed: |
26661 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: | 107x95x40mm, xls upto 10mm |
Description: |
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Viewed: |
26713 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: | 107x95x40mm, xls upto 10mm |
Description: |
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Viewed: |
26724 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: | 107x95x40mm, xls upto 10mm |
Description: |
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Viewed: |
26725 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: | 107x95x40mm, xls upto 10mm |
Description: |
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Viewed: |
26750 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: May 18, 2017 15:57 Post subject: Re: Collection of Fiebre Verde - Polveros (#104) |
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Due to weaker refracted light, crystals from Polveros usually exhibit less fire and brilliance than their counterparts from La Pita, Cunas, or even Consorcio.
Host rock is black shale.
Mineral: | Beryl (variety emerald), Calcite, Dolomite, Pyrite |
Locality: | La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 52x56x46mm, xls=10 & 5mm |
Description: |
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Viewed: |
26579 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Dolomite, Pyrite |
Locality: | La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 52x56x46mm, xls=10 & 5mm |
Description: |
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Viewed: |
26601 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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Posted: May 20, 2017 09:27 Post subject: Re: Collection of Fiebre Verde - Chivor (#202) |
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Host rock is black shale.
Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
Locality: | Chivor mining district, El Oriente Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 110x54x20mm, largest xl=30mm |
Description: |
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Viewed: |
26473 Time(s) |
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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
Locality: | Chivor mining district, El Oriente Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 110x54x20mm, largest xl=30mm |
Description: |
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Viewed: |
26495 Time(s) |
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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
Locality: | Chivor mining district, El Oriente Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 110x54x20mm, largest xl=30mm |
Description: |
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Viewed: |
26440 Time(s) |
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