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Collection of Michael Shaw
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crosstimber
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PostPosted: Sep 28, 2017 20:36    Post subject: Re: Collection of Michael Shaw  

Bob Harman wrote:
MICHAEL, Nice example. I have several similar pyrite specimens from Duff's Quarry. I too etched some calcite from one of them.
Is there any specific reason your example still has a small remaining area of obviously acid etched calcite? Why not carefully etch it away with some vinegar?
Regards, BOB


Hi Bob,
No specific reason other than that's the way it came to me. I have thought about etching the remaining calcite away, but I suppose it serves to demonstrate the paragenesis at this location.
Cheers,
Michael
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crosstimber
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PostPosted: Sep 29, 2017 13:57    Post subject: Re: Collection of Michael Shaw  

During the past 18 months, these purple grape chalcedony specimens have become commonplace in the stock of many dealers. Finding one that stands out among many hundreds if not thousands of pieces requires patience and persistence.


2493 Chalcedony - Sulawesi, Indonesia.jpg
 Mineral: Chalcedony
 Locality:
Mamuju area, Sulawesi Barat Province, Sulawesi, Indonesia
 Dimensions: 2.5 x 4.2 x 6.3 cm
 Description:
 Viewed:  1254 Time(s)

2493 Chalcedony - Sulawesi, Indonesia.jpg


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crosstimber
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PostPosted: Oct 02, 2017 14:32    Post subject: Re: Collection of Michael Shaw  

...


2507 Galena - Gyudyurska Mine, Bulgaria.jpg
 Mineral: Galena
 Locality:
Gyudyurska Mine, Zlatograd, Smolyan Oblast, Bulgaria
 Dimensions: 4.3 x 6.5 cm
 Description:
Upright-standing plates of bright spinel-twinned galena crystals.
 Viewed:  1178 Time(s)

2507 Galena - Gyudyurska Mine, Bulgaria.jpg



2507 Galena - Gyudyurska Mine, Zlatograd, Bulgaria.jpg
 Mineral: Galena
 Locality:
Gyudyurska Mine, Zlatograd, Smolyan Oblast, Bulgaria
 Dimensions: 4.3 x 6.5 cm
 Description:
 Viewed:  1177 Time(s)

2507 Galena - Gyudyurska Mine, Zlatograd, Bulgaria.jpg


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Nunzio




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PostPosted: Oct 03, 2017 06:11    Post subject: Re: Collection of Michael Shaw  

I like your Chalcedony! Great quality. I've seen so many of these but most are just meh quality. I think the smaller specimens are often underrated. It's the quality that counts.
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crosstimber
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PostPosted: Oct 03, 2017 13:47    Post subject: Re: Collection of Michael Shaw  

Thanks for your comment Nunzio. I agree that smaller specimens are sometimes overlooked. That is why I have no size restrictions for my collection.


Malachite ps. azurite - Nchanga Mine, Zambia.jpg
 Mineral: Malachite after azurite
 Locality:
Nchanga Mine, Chingola, Zambia
 Dimensions: 2.2 x 2.6 cm
 Description:
Azurite crystals partially pseudomorphed to malachite from the Nchanga open pit in Zambia's copper belt.
 Viewed:  1083 Time(s)

Malachite ps. azurite - Nchanga Mine, Zambia.jpg


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crosstimber
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PostPosted: Oct 04, 2017 14:44    Post subject: Re: Collection of Michael Shaw  

...


Dumortierite inclusions in quartz - Vaca Morte Quarry, Boquira, Bahia, Brazil.jpg
 Mineral: Quartz with Dumortierite inclusions
 Locality:
Vaca Morta Quarry, Serra da Vereda, Boquira, Bahia, Brazil
 Dimensions: 1.0 x 2.2 cm
 Description:
Radial sprays of acicular blue dumortierite include a clear quartz crystal.
 Viewed:  983 Time(s)

Dumortierite inclusions in quartz - Vaca Morte Quarry, Boquira, Bahia, Brazil.jpg


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crosstimber
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PostPosted: Oct 05, 2017 14:32    Post subject: Re: Collection of Michael Shaw  

...


Elbaite - Jonas Mine, Minas Gerais, Brazil.jpg
 Mineral: Elbaite
 Locality:
Jonas Mine, Itatiaia, Conselheiro Pena, Vale do Rio Doce, Minas Gerais, Brazil
 Dimensions: 2.1 x 2.7 cm
 Description:
A cranberry-red elbaite crystal surrounded by lepidolite crystals.
 Viewed:  909 Time(s)

Elbaite - Jonas Mine, Minas Gerais, Brazil.jpg


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Philippe Durand




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PostPosted: Oct 05, 2017 14:56    Post subject: Re: Collection of Michael Shaw  

the last two ones are stunning.
two great marvelous jewels;
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crosstimber
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PostPosted: Oct 05, 2017 15:51    Post subject: Re: Collection of Michael Shaw  

Philippe Durand wrote:
the last two ones are stunning.
two great marvelous jewels;


Thanks for your comment Philippe. Further proof that sometimes good things come in small packages :>)
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crosstimber
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PostPosted: Oct 07, 2017 12:00    Post subject: Re: Collection of Michael Shaw  

Another galena!


2510 Galena - Julia Fisk Mine, Leadville, Lake Co., Colorado.jpg
 Mineral: Galena
 Locality:
Julia Fisk Mine, Iowa Gulch, Leadville, Leadville District, Lake County, Colorado, USA
 Dimensions: 3.5 x 4.0 x 6.5 cm
 Description:
Cuboctahedral galena with minor pyrite and sphalerite.
 Viewed:  788 Time(s)

2510 Galena - Julia Fisk Mine, Leadville, Lake Co., Colorado.jpg


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crosstimber
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PostPosted: Oct 10, 2017 16:50    Post subject: Re: Collection of Michael Shaw  

...


2503 Celestine - Kalihari Mn Field, N. Cape Prov., South Africa.jpg
 Mineral: Celestine
 Locality:
Kalahari manganese field (KMF), Northern Cape Province, South Africa
 Dimensions: 5.5 x 6.7 x 7.7 cm
 Description:
Divergent clusters of glassy, colorless celestine crystals with a bit of attached black matrix.
 Viewed:  677 Time(s)

2503 Celestine - Kalihari Mn Field, N. Cape Prov., South Africa.jpg


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Tobi




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PostPosted: Oct 11, 2017 11:03    Post subject: Re: Collection of Michael Shaw  

Michael, I enjoyed your latest posts so much. As a "galenaphile" I like your galena from Colorado though I must confess that I never heard of the Julia Fisk Mine. And your Jonas Mine rubellite, wow, simply a perfect small specimen.
You have a wonderful collection, a good taste in minerals and an ability to make really good photos of them :-)
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Fiebre Verde




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PostPosted: Oct 11, 2017 11:15    Post subject: Re: Collection of Michael Shaw  

Tobi wrote:

You have a wonderful collection, a good taste in minerals and an ability to make really good photos of them :-)

I still feel it's an understatement...
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crosstimber
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PostPosted: Oct 11, 2017 16:35    Post subject: Re: Collection of Michael Shaw  

Fiebre Verde wrote:
Tobi wrote:

You have a wonderful collection, a good taste in minerals and an ability to make really good photos of them :-)

I still feel it's an understatement...


Thank you for those kind words Tobi and Gérard. Sharing my collection with other collectors on this forum has been a pleasure, and being able to view the collections of other FMF members has provided countless hours of enjoyment.
Regards,
Michael
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PostPosted: Oct 12, 2017 14:58    Post subject: Re: Collection of Michael Shaw  

...


2512 Quartz var. amethyst - Kakmunurle Mine, Karur District, India.jpg
 Mineral: Quartz (variety Amethyst)
 Locality:
Kakamunurle Quarry, Karur District, Tamil Nadu, India
 Dimensions: 3.0 x 3.2 cm
 Description:
A small group of zoned amethyst crystals with no point of attachment. A couple of crystals are sceptered.
 Viewed:  442 Time(s)

2512 Quartz var. amethyst - Kakmunurle Mine, Karur District, India.jpg


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PostPosted: Oct 14, 2017 10:21    Post subject: Re: Collection of Michael Shaw  

...


Calcite - Herja Mine, Baia Mare, Romania.jpg
 Mineral: Calcite
 Locality:
Herja Mine, Chiuzbaia, Baia Mare, Maramures, Romania
 Dimensions: 4.0 x 6.0 cm
 Description:
A divergent group of white calcite "fingers" associated with quartz and pyrite.
 Viewed:  286 Time(s)

Calcite - Herja Mine, Baia Mare, Romania.jpg


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Heimo Hellwig




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PostPosted: Oct 14, 2017 10:31    Post subject: Re: Collection of Michael Shaw  

Absolutely beautifull Calcite Michael.
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crosstimber
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PostPosted: Oct 14, 2017 11:34    Post subject: Re: Collection of Michael Shaw  

Heimo Hellwig wrote:
Absolutely beautiful Calcite Michael.


Thanks Heimo. Romanian minerals have been a focus of my collection for over 30 years and this is the only calcite that I have ever seen from Herja with this habit. Glad you like it.
Michael
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PostPosted: Oct 16, 2017 08:41    Post subject: Re: Collection of Michael Shaw  

...


TN690 Babingtonite - Lane Quarry, Westfield, Massachusetts.jpg
 Mineral: Babingtonite
 Locality:
Lane Quarry, Westfield, Hampden County, Massachusetts, USA
 Dimensions: 1.9 x 2.5 cm
 Description:
Lustrous black babingtonite crystals with minor prehnite.
 Viewed:  114 Time(s)

TN690 Babingtonite - Lane Quarry, Westfield, Massachusetts.jpg


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