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Collection of Michael Shaw
  Goto page Previous  1, 2, 3 ... 13, 14, 15 ... 76, 77, 78  Next
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Michael Shaw
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PostPosted: Sep 23, 2013 16:53    Post subject: Re: Collection of Michael Shaw  

Thank you all for the input. Clearly these "pencil habit" schorls have been around much longer than I had thought. I had never seen them before, so I assumed they were something new. As to the exact locality, the specimens belonging to Carles and John both mentioned Laila Peak, so these are no doubt from the same general vicinity, perhaps from the same prospect.

Michael
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PostPosted: Sep 25, 2013 09:28    Post subject: Re: Collection of Michael Shaw  

Continuing with minerals from Pakistan.


654 Elbaite.jpg
 Description:
Elbaite-Schorl series
Doko, Basha Valley, Skardu District, Gilgit-Baltistan, Pakistan
3.0 x 3.6 cm.
Dark green elbaite crystals with modified pinacoid terminations associated with colorless bladed albite and books of pale yellow muscovite.
 Viewed:  20063 Time(s)

654 Elbaite.jpg



1541 Microcline.jpg
 Description:
Microcline
Raikot, Chilas Diamer District, Gilgit-Baltistan, Pakistan
3.6 x 8.0 cm.
Porcelain white Baveno-twinned microcline crystal with numerous smaller crystals along one prism face.
 Viewed:  20063 Time(s)

1541 Microcline.jpg



2022 Ferberite.jpg
 Description:
Ferberite
Shigar Valley, Skardu District, Gilgit-Baltistan, Pakistan
3.5 x 7.1 cm.
Semi-lustrous black ferberite crystals to 2.5 cm forming am intergrown cluster with quartz.
 Viewed:  20059 Time(s)

2022 Ferberite.jpg



2034 Anatase.jpg
 Description:
Anatase
Ras Koh Mountains, Kharan District, Balochistan, Pakistan
3.5 x 4.0 cm.
Sharp anatase crystals on a matrix of albite and quartz.
 Viewed:  20078 Time(s)

2034 Anatase.jpg


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Michael Shaw
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PostPosted: Sep 28, 2013 07:32    Post subject: Re: Collection of Michael Shaw  

Continuing with minerals from Pakistan.


1538 Axinite (2).jpg
 Description:
Axinite
Khapalu, Ghanche District, Gilgit-Baltistan, Pakistan
7.1 x 8.8 cm.
A triangular plate of feldspar hosting sharp gemmy brown axinite crystals with small crystals of adularia.
 Viewed:  19958 Time(s)

1538 Axinite (2).jpg



1587 Zircon.jpg
 Description:
Zircon
Bulbin, Astor District, Gilgit-Baltistan, Pakistan
3.0 x 4.0 cm
Dark brown prismatic zircon exhibiting reddish highlights in strong transmitted light.
 Viewed:  20050 Time(s)

1587 Zircon.jpg



Pakistan fluorite xls.jpg
 Description:
Fluorite
Chumar Bakhoor, Hunza Valley, Gilgit-Baltistan, Pakistan
3.0 x 3.5 and 3.1 x 3.7 cm.
Transparent octahedral fluorite crystals with a pale green cores and pale pink edges.
 Viewed:  19962 Time(s)

Pakistan fluorite xls.jpg



1584 Quartz faden.jpg
 Description:
Quartz
Tole, South Waziristan, FATA, Pakistan
5.1 x 7.0 cm
Glassy, transparent, tabular quartz crystals in parallel growth with a prominent milky faden line visible roughly perpendicular to the c-axis.
 Viewed:  19993 Time(s)

1584 Quartz faden.jpg


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Tobi




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PostPosted: Sep 28, 2013 10:10    Post subject: Re: Collection of Michael Shaw  

Wonderful elbaite ( https://www.mineral-forum.com/message-board/files/654_elbaite_181.jpg ), Michael!
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PostPosted: Sep 28, 2013 10:55    Post subject: Re: Collection of Michael Shaw  

Hi Michael,
Always pleasant to contemplate. Congratulations.
How can we say that tourmaline "Elbaite-jpg 654" is an elbaite? It seems to contain iron.
Roger.
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Michael Shaw
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PostPosted: Sep 28, 2013 11:39    Post subject: Re: Collection of Michael Shaw  

Roger Warin wrote:
Hi Michael,
Always pleasant to contemplate. Congratulations.
How can we say that tourmaline "Elbaite-jpg 654" is an elbaite? It seems to contain iron.
Roger.


Thanks Tobi.

Roger,
There may well be some Fe in this piece. Just doing some more reading, and according to Mindat, there seems to be an elbaite-schorl series (Bosi, F., Andreozzi, G. B., Federico, M., Graziani, G. & Lucchesi, S. (2005): Crystal chemistry of the elbaite-schorl series. Am. Mineral. 90, 1784-1792.). I don't have a copy of this paper available, but perhaps these dark crystals are intermediate in the series. I wish I could take a good photo of this piece with the crystals backlit. They are definitely green, but too dark to see when lit from the front.
Michael
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PostPosted: Sep 28, 2013 12:29    Post subject: Re: Collection of Michael Shaw  

Many thanks Michael.
Roger.
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PostPosted: Sep 28, 2013 13:47    Post subject: Re: Collection of Michael Shaw  

crosstimber wrote:
...There may well be some Fe in this piece. Just doing some more reading, and according to Mindat, there seems to be an elbaite-schorl series...

Fixed in https://www.mineral-forum.com/message-board/viewtopic.php?p=34360#34360
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PostPosted: Sep 30, 2013 10:43    Post subject: Re: Collection of Michael Shaw  

With today's post, I will finish showing our collection of specimens from Pakistan. Next up will be a country with a seemingly inexhaustible supply of minerals - China.


937 Topaz.jpg
 Description:
Topaz
Mango, Shigar Valley, Gilgit-Baltistan, Pakistan
2.1 x 3.4 cm.
A gemmy loose crystal of sherry-colored topaz.
 Viewed:  19573 Time(s)

937 Topaz.jpg



2100 Apatite-CaF.jpg
 Description:
Fluorapatite
Haramosh Mts., Skardu District, Gilgit-Baltistan, Pakistan
3.5 x 4.5 cm.
Glassy pink translucent crystal of fluorapatite associated with minor muscovite.
 Viewed:  19585 Time(s)

2100 Apatite-CaF.jpg



2099 Forsterite.jpg
 Description:
Forsterite
Sapat Gali, Naran-Kaghan, Khyber Pakhtunkhwa, Pakistan
3.5 x 4.6 cm.
A group of partly gemmy green peridot crystals.
 Viewed:  19632 Time(s)

2099 Forsterite.jpg


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PostPosted: Oct 03, 2013 15:33    Post subject: Re: Collection of Michael Shaw  

While I am gathering photos and info for the next installment which will feature China, I decided to show this little aquamarine which I recently acquired at the Denver Show. I have never been very successful in being able to photograph gem crystals, showing their transparency, so I spent some time experimenting with some different lighting arrangements until I came up with the image below. I'm pretty happy with the result, and I think I learned quite a bit about the best way to light these kinds of specimens.

Michael



2129 Beryl var. aquamarine.jpg
 Description:
Beryl var. aquamarine
Doi Ty Mine, Thuong Xuan District, Thanh Hoa Prov., Vietnam
1.5 x 3.5 cm
 Viewed:  19583 Time(s)

2129 Beryl var. aquamarine.jpg


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PostPosted: Oct 03, 2013 15:44    Post subject: Re: Collection of Michael Shaw  

Michael, that last aquamarine is a real gem and your photography is superb as always.

Don

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PostPosted: Oct 03, 2013 16:01    Post subject: Re: Collection of Michael Shaw  

Don Lum wrote:
Michael, that last aquamarine is a real gem and your photography is superb as always.

Don


Thanks Don. I thought you might attend the Denver Show, so looked for you. I would have introduced myself if I saw you.
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PostPosted: Oct 03, 2013 17:10    Post subject: Re: Collection of Michael Shaw  

crosstimber wrote:
Don Lum wrote:
Michael, that last aquamarine is a real gem and your photography is superb as always.

Don


Thanks Don. I thought you might attend the Denver Show, so looked for you. I would have introduced myself if I saw you.


I look forward to meeting you, Michael.

Don

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PostPosted: Oct 03, 2013 19:53    Post subject: Re: Collection of Michael Shaw  

Michael:

I don't understand how you can say that you are not successful in photographing gem crystals. Your photo of the topaz is one of the very best images of that mineral that I have ever seen. Wish you had tried to locate me in Denver. Perhaps we can meet in Tucson. I want to meet Don as well.

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PostPosted: Oct 03, 2013 20:11    Post subject: Re: Collection of Michael Shaw  

John S. White wrote:
Michael:

I don't understand how you can say that you are not successful in photographing gem crystals. Your photo of the topaz is one of the very best images of that mineral that I have ever seen. Wish you had tried to locate me in Denver. Perhaps we can meet in Tucson. I want to meet Don as well.

Mr. White,

It would be an honor to meet you.

Don

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PostPosted: Oct 04, 2013 08:49    Post subject: Re: Collection of Michael Shaw  

John S. White wrote:
Michael:

I don't understand how you can say that you are not successful in photographing gem crystals. Your photo of the topaz is one of the very best images of that mineral that I have ever seen. Wish you had tried to locate me in Denver. Perhaps we can meet in Tucson. I want to meet Don as well.

John,

Well, I guess for me, creating a successful image is measured against photographs by many of the talented photographers for Mineralogical Record, Rocks & Minerals, and other noteworthy mineral publications. I tend to be my own worst critic - but that's how we improve. I certainly appreciate your comment regarding my topaz photo, and take it as a big compliment. Actually that image was taken a couple of days earlier than the beryl, and I more or less stumbled onto the setup. Since I was happy with the result, I experimented further with the new lighting setup and was finally able to produce relatively consistent results.

I would be my pleasure to meet you sometime in the future. Perhaps, at Jordi's get together in Tucson, if space allows.

Michael
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PostPosted: Oct 07, 2013 12:09    Post subject: Re: Collection of Michael Shaw  

I have finally organized my photos, so today I would like to start a mineralogical journey through China. The next several posts will show specimens in our collection from the country which has turned into one of the most important and prolific specimen producers over the past decade.


1256 Azurite.jpg
 Description:
Azurite
Tongshan Mine, Guichi Dist., Anhui Province, China
5.3 x 8.5 cm.
Dark blue platy crystals to 1 cm lining a shallow cavity in massive azurite with minor malachite.
 Viewed:  19199 Time(s)

1256 Azurite.jpg



1292 Spessartine.jpg
 Description:
Spessartine
Wushan Mine, Tongbei, Yunxiao Co., Fujian Prov., China
7.0 x 10.0 cm
Sharp, reddish-orange spessartine crystals scattered over a matrix of orthoclase with several smoky quartz crystals.
 Viewed:  19174 Time(s)

1292 Spessartine.jpg



TN216 Spessartine.jpg
 Description:
Spessartine
Wushan Mine, Tongbei, Yunxiao Co., Fujian Prov., China
2.0 x 2.3 cm
 Viewed:  19210 Time(s)

TN216 Spessartine.jpg



TN255 Silver.jpg
 Description:
Silver
Yueshan Ag-Pb-Zn deposit, Huangtun, Lujiang Co., Chaohu Prefecture, Anhui Province, China
2.5 x 3.2 cm.
 Viewed:  19188 Time(s)

TN255 Silver.jpg


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PostPosted: Oct 07, 2013 12:40    Post subject: Re: Collection of Michael Shaw  

This image: https://www.mineral-forum.com/message-board/files/tn216_spessartine_180.jpg (in https://www.mineral-forum.com/message-board/viewtopic.php?p=34589#34589 ) is one of the more appealing images of Spessartines I have seen.

My warmest congratulations Michael!
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PostPosted: Oct 07, 2013 13:04    Post subject: Re: Collection of Michael Shaw  

Jordi Fabre wrote:
This image: https://www.mineral-forum.com/message-board/files/tn216_spessartine_180.jpg (in https://www.mineral-forum.com/message-board/viewtopic.php?p=34589#34589 ) is one of the more appealing images of Spessartines I have seen.

My warmest congratulations Michael!


Michael, I heartily agree with Jordi. Beautiful.

Don

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PostPosted: Oct 07, 2013 16:01    Post subject: Re: Collection of Michael Shaw  

Love the spessartine!
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