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29 Mar-09:23:40 Re: collection of michael shaw (Michael Shaw)
29 Mar-05:41:35 Re: collection of annemieke en rob schnerr (Tobi)
29 Mar-05:38:38 Re: torbernite from musonoi dr congo? (Tobi)
29 Mar-05:34:29 Re: collection of annemieke en rob schnerr (Rob Schnerr)
29 Mar-02:31:15 Re: collection of sante celiberti - a mineralogical trip through italy (Sante Celiberti)
28 Mar-23:48:48 The mizunaka collection - quartz (Am Mizunaka)
28 Mar-23:08:02 Re: stay at home - coronavirus / covid-19 (Don Lum)
28 Mar-23:04:47 Re: stay at home - coronavirus / covid-19 (Don Lum)
28 Mar-18:22:39 Stay at home - coronavirus / covid-19 - the work of others (Jordi Fabre)
28 Mar-18:12:45 Torbernite from musonoi dr congo? (Byron Anderson)
28 Mar-18:09:02 Dark line in brookite (Tgleckler)
28 Mar-17:19:46 Re: collection of sante celiberti - a mineralogical trip through italy (Sante Celiberti)
28 Mar-16:53:17 Re: don lum collection (Don Lum)
28 Mar-14:20:28 Re: stay at home - coronavirus / covid-19 (Don Lum)
28 Mar-14:10:36 Re: stay at home - coronavirus / covid-19 (Don Lum)
28 Mar-12:47:37 Re: stay at home - coronavirus / covid-19 (Susan Robinson)
28 Mar-12:18:36 Re: rounded yellow-green crystals in calcite (Lluis)
28 Mar-10:50:11 Re: stay at home - coronavirus / covid-19 (Don Lum)
28 Mar-10:37:32 Re: rounded yellow-green crystals in calcite (Bob Carnein)
28 Mar-07:44:47 Re: stay at home - coronavirus / covid-19 (Dany Mabillard)
27 Mar-19:41:09 Re: rounded yellow-green crystals in calcite (John Betts)
27 Mar-19:39:46 Re: rounded yellow-green crystals in calcite (John Betts)
27 Mar-19:38:26 Re: rounded yellow-green crystals in calcite (Pete Richards)
27 Mar-19:12:47 Re: rounded yellow-green crystals in calcite (Peter Megaw)
27 Mar-18:35:11 Re: collection of sante celiberti - a mineralogical trip through italy (Sante Celiberti)

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Collection of Michael Shaw
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Michael Shaw
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PostPosted: Feb 04, 2020 09:14    Post subject: Re: Collection of Michael Shaw  

Tobi wrote:
Really wonderful Rogerley fluorite, Michael!


Thanks Tobi. It even has one of our favorite minerals on the lower right edge.
Michael
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PostPosted: Feb 18, 2020 11:18    Post subject: Re: Collection of Michael Shaw  




Barite - Marsanges, Langeac, Haute-Loire, Auvergne-Rhône-Alpes France.jpg
 Mineral: Barite
 Locality:
Marsanges Mine, Pratclos (Pratclaux) vein, Langeac, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France
 Dimensions: 4.0 cm x 7.3 cm
 Description:
Compound chisel-shaped barite crystal with a brownish core and milky white outer zones from this former fluorite mine.
 Viewed:  1721 Time(s)

Barite - Marsanges, Langeac, Haute-Loire, Auvergne-Rhône-Alpes France.jpg


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Tobi




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PostPosted: Feb 19, 2020 04:30    Post subject: Re: Collection of Michael Shaw  

Really elegant and beautiful barite, I like it :-)
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PostPosted: Feb 19, 2020 08:27    Post subject: Re: Collection of Michael Shaw  

Tobi wrote:
Really elegant and beautiful barite, I like it :-)


Thanks Tobi. I found several new barites in Tucson which we were able to add to our collection. One in particular that I am excited about is from the Clara Mine. I will post that one in the near future when I am able to get a good photo of it.
Michael
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PostPosted: Feb 24, 2020 16:42    Post subject: Re: Collection of Michael Shaw  




2684 Barite - Clara Mine, Oberwolfach, Baden-Württemberg, Germany.jpg
 Mineral: Barite
 Locality:
Lavrion Mining District, Attikí (Attica) Prefecture, Greece
 Dimensions: 4.0 cm x 5.3 cm x 8.7 cm
 Description:
 Viewed:  1546 Time(s)

2684 Barite - Clara Mine,  Oberwolfach, Baden-Württemberg, Germany.jpg


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PostPosted: Mar 04, 2020 16:02    Post subject: Re: Collection of Michael Shaw  




Fluorite - Mont Blanc, Haute-Savoie, France.jpg
 Mineral: Fluorite
 Locality:
Mont Blanc Massif, Chamonix, Haute-Savoie, Auvergne-Rhône-Alpes, France
 Dimensions: 2.0 x 2.4 cm
 Description:
Fluorite with minor adularia.
 Viewed:  1400 Time(s)

Fluorite - Mont Blanc, Haute-Savoie, France.jpg


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Niels Brouwer




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PostPosted: Mar 04, 2020 19:32    Post subject: Re: Collection of Michael Shaw  

Michael, how certain are you that that baryte specimen is from the Clara Mine? It's completely different from anything I've seen from that mine (which is an absolute paradise for a baryte collector like myself). I would have thought Lavrion in Greece would be far more likely if it hadn't been labelled as coming from the Clara.
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PostPosted: Mar 04, 2020 22:44    Post subject: Re: Collection of Michael Shaw  

Niels Brouwer wrote:
Michael, how certain are you that that baryte specimen is from the Clara Mine? It's completely different from anything I've seen from that mine (which is an absolute paradise for a baryte collector like myself). I would have thought Lavrion in Greece would be far more likely if it hadn't been labelled as coming from the Clara.


Niels, not certain at all - I acquired the barite from a German dealer and that is what his label stated. I did review all of the Clara Mine barite specimens on Mindat, and while I didn't find any that looked similar, it was apparent that the location produced numerous habits of barite. Thanks for the insight. I'' have a look at the Lavrion photos.
Michael
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Niels Brouwer




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PostPosted: Mar 05, 2020 05:08    Post subject: Re: Collection of Michael Shaw  

Yes, that immense diversity is the very reason why I was hesitant to categorically rule it out as coming from the Clara mine. I'm still completely surprised every single time I come across a few new habits, just when I thought I had seen them all. :D This particular habit however seems to be completely absent from this mine, regardless of colour and crystal size, hence my gut feeling why Greece would be a much better fit.

Anyway, thanks for sharing, I always really enjoy seeing your photos!
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PostPosted: Mar 05, 2020 05:20    Post subject: Re: Collection of Michael Shaw  

Hi Michael, hi Niels, indeed a beautiful baryte, but I'm also doubtful: I have seen a lot Clara barytes and I also visited the Clara Mine Museum where you can see how many different crystal varieties occur there. But if this one is from Clara, not sure ... I agree with Niels who is much more baryte-educated than me, this is really not a typical Clara specimen but it doesn't look too strange to rule it out ... :-/

Maybe a little question mark on the label would do it?

Regards
Tobi
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PostPosted: Mar 05, 2020 10:45    Post subject: Re: Collection of Michael Shaw  

Tobi wrote:
Hi Michael, hi Niels, indeed a beautiful baryte, but I'm also doubtful: I have seen a lot Clara barytes and I also visited the Clara Mine Museum where you can see how many different crystal varieties occur there. But if this one is from Clara, not sure ... I agree with Niels who is much more baryte-educated than me, this is really not a typical Clara specimen but it doesn't look too strange to rule it out ... :-/

Maybe a little question mark on the label would do it?

Regards
Tobi


Niels and Tobi,

I browsed through all of the barite photos on Mindat and there are a couple of Lavrion barite specimens from the Sounion Mine that are remarkably similar to the one I have. I am starting to believe that my specimen is from Greece, not Clara. Again thanks for the input.

Michael
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PostPosted: Mar 05, 2020 17:56    Post subject: Re: Collection of Michael Shaw  




Silver - Ridge Mine, Mass City, Ontonagon Co., Michigan.jpg
 Mineral: Silver
 Locality:
Ridge Mine (absorbed by Mass Consolidated Mine), Mass City, Ontonagon County, Michigan, USA
 Dimensions: 1.6 cm x 2.9 cm
 Description:
The Ridge Mine was organized in 1850 and worked by various companies until it was absorbed, along with 4 other mines, into the Mass Consolidated Mine in 1899. The Ridge Mine was especially rich in silver.
 Viewed:  1210 Time(s)

Silver - Ridge Mine, Mass City, Ontonagon Co., Michigan.jpg


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PostPosted: Mar 08, 2020 15:34    Post subject: Re: Collection of Michael Shaw  




TN779 Azurite on malachite - Milpillas Mine, Sonora, Mexico.jpg
 Mineral: Azurite on Malachite
 Locality:
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora, Mexico
 Dimensions: 2.0 cm x 3.0 cm
 Description:
 Viewed:  1037 Time(s)

TN779 Azurite on malachite - Milpillas Mine, Sonora, Mexico.jpg


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PostPosted: Mar 09, 2020 06:15    Post subject: Re: Collection of Michael Shaw  

Michael Shaw wrote:
Azurite on Malachite
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora, Mexico
Dimensions: 2.0 cm x 3.0 cm
Outstandingly beautiful, Michael!
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PostPosted: Mar 09, 2020 09:04    Post subject: Re: Collection of Michael Shaw  

Thank you Tobi.


TN775 Vanadinite - San Carlos Mine, Chihuahua, Mexico.jpg
 Mineral: Vanadinite
 Locality:
San Carlos Mine (Apex Mine), San Carlos, Municipio Manuel Benavides, Chihuahua, Mexico
 Dimensions: 2.0 cm x 2.5 cm
 Description:
 Viewed:  934 Time(s)

TN775 Vanadinite - San Carlos Mine, Chihuahua, Mexico.jpg


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PostPosted: Mar 16, 2020 12:39    Post subject: Re: Collection of Michael Shaw  




2708 Malachite - Kerrouchene, Khénifra Prov., Béni Mellal-Khénifra Region, Morocco.jpg
 Mineral: Malachite
 Locality:
Kerrouchen, Khénifra Province, Beni Mellal-Khenifra Region, Morocco
 Dimensions: 3.0 cm x 6.0 cm
 Description:
Fan-shaped growths of tightly-packed acicular dark green malachite crystals showing prominent color zoning and a velvety to chatoyant luster.
 Viewed:  573 Time(s)

2708 Malachite - Kerrouchene, Khénifra Prov., Béni Mellal-Khénifra Region, Morocco.jpg


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PostPosted: Mar 17, 2020 11:53    Post subject: Re: Collection of Michael Shaw  

Another malachite.


Malachite - Mashamba West Mine, Kolwezi Dist., Shaba Prov., Dem. Rep. of Congo.jpg
 Mineral: Malachite
 Locality:
Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire)
 Dimensions: 5.7 cm x 8.5 cm
 Description:
 Viewed:  481 Time(s)

Malachite - Mashamba West Mine, Kolwezi Dist., Shaba Prov., Dem. Rep. of Congo.jpg


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PostPosted: Mar 22, 2020 13:36    Post subject: Re: Collection of Michael Shaw  




2704 Fluorite and calcite - Boltsburn Mine, Rookhope, County Durham, England.jpg
 Mineral: Fluorite and Calcite
 Locality:
Boltsburn Mine, Rookhope District, Weardale, North Pennines Orefield, County Durham, England, United Kingdom
 Dimensions: 4.6 cm x 8.7 cm x 12.3 cm.
 Description:
Lustrous pale purple fluorite crystals to 1.3 cm associated with rosettes of flattened calcite rhombs on a gray limestone matrix. Strong purple fluorescence with both SW and LW UV light.
 Viewed:  241 Time(s)

2704 Fluorite and calcite - Boltsburn Mine, Rookhope, County Durham, England.jpg


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PostPosted: Mar 26, 2020 17:41    Post subject: Re: Collection of Michael Shaw  




2546 Calcite on quartz - Cavnic, Maramures, Romania.jpg
 Mineral: Calcite on Quartz
 Locality:
Cavnic mining area, Cavnic, Maramures, Romania
 Dimensions: 2.2 cm x 5.7 cm.
 Description:
Quartz crystals draped with small colorless dolomite rhombs and associated with scalenohedral calcite crystals.
 Viewed:  92 Time(s)

2546 Calcite on quartz - Cavnic, Maramures, Romania.jpg



2546 Calcite back - Cavnic, Maramures, Romania.jpg
 Mineral: Calcite on quartz
 Locality:
Cavnic mining area, Cavnic, Maramures, Romania
 Dimensions: 2.2 cm x 5.7 cm.
 Description:
Back view.
 Viewed:  92 Time(s)

2546 Calcite back - Cavnic, Maramures, Romania.jpg


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PostPosted: Mar 29, 2020 09:23    Post subject: Re: Collection of Michael Shaw  




TN784 Silver - Porco, Agua de Castilla, Potosi Dept., Bolivia.jpg
 Mineral: Silver
 Locality:
Porco, Antonio Quijarro Province, Potosí Department, Bolivia
 Dimensions: 1.5 x 2.3 cm
 Description:
 Viewed:  3 Time(s)

TN784 Silver - Porco,  Agua de Castilla, Potosi Dept., Bolivia.jpg


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