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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1396
Location: Cambridge
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 Posted: Feb 14, 2024 04:28 Post subject: Re: Tucson 2024 - It's started! |
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Thanks Bob.
I attended a great talk last week all about the use of fossils, gems and minerals in medical matters. For example, what were belemnites good for? They cured the thing they looked like. Fascinating subject.
| bob kerr wrote: | | The Sherman Dugan Museum of Geology at San Juan College entered an interesting case showing some historical uses of toxic minerals. How did we survive childhood? |
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Tony L. Potucek
Joined: 29 Dec 2006
Posts: 98
Location: Arizona
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| Posted: Feb 16, 2024 09:21 Post subject: Re: Tucson 2024 - It's started! |
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Bob,
Thanks for your hard work of posting many dealers and their offerings during the 2024 Tucson Show. I really appreciate it, and it was good seeing you at Mineral City!
_________________
Tony L. Potucek |
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John Cornish
Joined: 19 Oct 2009
Posts: 127
Location: Port Angeles
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| Posted: Feb 16, 2024 10:15 Post subject: Re: Tucson 2024 - It's started! |
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Hi Bob,
It was great seeing you at the show!
Thank you for another outstanding Tucson report! Your reports always fill in the gaps of my own experiences, allowing me a funner, fuller, take-away!
See ya next year!
John
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Bergur_E_Sigurdarson
Joined: 21 Dec 2017
Posts: 148
Location: Paipa, Colombia
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| Posted: Feb 17, 2024 17:36 Post subject: Re: Tucson 2024 - It's started! |
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| bob kerr wrote: | | Number 8 in the series of "Barite World Tour" cases entered annually by Bill and Diana Dameron covers Latin America - mainly Mexico and Peru as most other nations in Latin America are devoid of barite. Learn something new every day! |
I would say that Colombia actually also has some barite, ranging from minor ones coming from La Marina, usually in association with Albite, and sometimes a little of pyrite and even fluorapatite, but also quite large groupings from the Muzo area.
Unfortunately, very few specimens have come from Colombia, but mostly because the mineral isn't recognized and often the ones found are found by "guaqueros" in tailings and thus damaged.
Barite can be found elsewhere in Colombia, as I have a self-found piece, I just randomly saw in a quarry, unfortunately it was an area looking like it had some rock taken and was being prepared for building and no more was to be seen in the cliff walls.
I'm not stating Colombia as a good source for Barite, but I think beyond what is known it has potential for quite good pieces, and possibly in some rather unusual associations.
...I hope I can stumble onto more in the future.
(though I'm currently into my building project for the next months, and don't expect to manage to get to Bogota or any mining area anytime soon for that reason ...I have to be present at the building site to oversee and to pay for materials as they arrive, and my savings are in a bad state, as the exchange rate has actually reduced them by almost 20% since beginning of last year :-/ ...to the point that I've even considered a "kickstarter" thing to help fund it... as more than a third of the house is for my humble collection I want to open as a mini-museum, I once joked I wanted to be the MIM of Colombia... but frankly that might both be far beyond my capacity, but also, Colombia lacks a good mineral collection open to the public, there is the National University collection, but despite its size there are very few specimens of quality or interest to a collector. Sorry for the deviation of subject in this last part, but I'm hoping I can get to a point that my collection becomes a worthy attraction, as well as offering foreign collectors/visitors a service of a place to stay as well as guiding into both emerald belts :-) )
For some attention, I've attached a couple of images of my Colombian Barites
(don't have a pic of my self-found one, and the last is only a phone-cam pic so apologies for the lackluster quality)
| Mineral: | Barite, Albite |
| Locality: | | La Marina Mine, Municipio Pauna, Western Emerald Belt, Boyacá Department, Colombia |  |
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| Dimensions: | appx 12cm across, xl cluster appx 2cm |
| Description: |
| From the tailings at La Marina |
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| Viewed: |
2593 Time(s) |
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| Mineral: | Barite |
| Locality: | | La Marina Mine, Municipio Pauna, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | approx. 35mm across |
| Description: |
| Bought from the miners at La Marina |
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| Viewed: |
2596 Time(s) |
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| Mineral: | Barite |
| Locality: | | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | about 9.5 cm across |
| Description: |
| Big cluster of barite, from the Muzo area, tho acquired in Cozques. Quite tumbled as it was found in an area of tailings by a "guaquero" |
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| Viewed: |
2599 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 943
Location: Paris Area
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| Posted: Feb 18, 2024 04:24 Post subject: Re: Tucson 2024 - It's started! |
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| Bergur_E_Sigurdarson wrote: | | bob kerr wrote: | | Number 8 in the series of "Barite World Tour" cases entered annually by Bill and Diana Dameron covers Latin America - mainly Mexico and Peru as most other nations in Latin America are devoid of barite. Learn something new every day! |
I would say that Colombia actually also has some barite, ranging from minor ones coming from La Marina,usually in association with Albite, and sometimes a little of pyrite and even fluorapatite, but also quite large groupings from the Muzo area.
Unfortunately, very few specimens have come from Colombia, but mostly because the mineral isn't recognized and often the ones found are found by "guaqueros" in tailings and thus damaged.
Barite can be found elsewhere in Colombia, as I have a self-found piece, I just randomly saw in a quarry, unfortunately it was an area looking like it had some rock taken and was being prepared for building and no more was to be seen in the cliff walls.
... ... ...
I'm not stating Colombia as a good source for Barite, but I think beyond what is known it has potential for quite good pieces, and possibly in som rather unusual associations.
...I hope I can stumble onto more in the future
For some attention, I've attached a couple of images of my Colombian Barites
(don't have a pic of my self-found one, and the last is only a phone-cam pic so apologies for the lackluster quality) |
I couldn't agree more with Bergur's statement on Colombian barite: they are completely overlooked by the 'guaqueros' because they think it has little or no value.
Here are a few more examples of Colombian barite from La Marina and Muzo.
| Mineral: | Barite, Calcite |
| Locality: | | La Marina Mine, Municipio Pauna, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 14x21x12mm |
| Description: |
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| Viewed: |
2522 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 |
| Description: |
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| Viewed: |
2511 Time(s) |
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| Mineral: | Barite |
| Locality: | | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 3 cm across |
| Description: |
| Barite group on black shale |
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| Viewed: |
2504 Time(s) |
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