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20 Sep-09:12:37 Re: collection of michael shaw (Crosstimber)
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18 Sep-02:24:48 The mizunaka collection - fluorite (Am Mizunaka)
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Collection of Michael Shaw
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crosstimber
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PostPosted: Nov 18, 2013 10:15    Post subject: Re: Collection of Michael Shaw  

Thank you Don. China has certainly been blessed with plenty of wonderful fluorite localities.

Today's post features the last of our specimens from the Huanggang Mine Complex.



1865 Andradite.jpg
 Description:
Andradite
Huanggang Mine No 1., Keshiketeng Co., Chifeng Pref., Inner Mongolia AR, China
4.0 x 4.5 cm
Dodecahedral crystals of brownish-black andradite associated with small quartz crystals.
 Viewed:  19047 Time(s)

1865 Andradite.jpg



1847 Arsenopyrite (3).jpg
 Description:
Arsenopyrite
Huanggang Mine No. 2, Keshiketeng Co., Chifeng Pref., Inner Mongolia AR, China
5.7 x 7.7 cm
Radial aggregates of silvery metallic arsenopyrite crystals on a green hedenbergite.matrix.
 Viewed:  19053 Time(s)

1847 Arsenopyrite (3).jpg



2121 Quartz.jpg
 Description:
Quartz
Huanggang Mine No. 2, Keshiketeng Co., Chifeng Pref., Inner Mongolia AR, China
6.6 x 10.7 cm.
A divergent spray of gray-green quartz crystals with smoky to amethystine cores and sceptered terminations. The prism faces consist of hundreds of small rhombohedral faces.
 Viewed:  19037 Time(s)

2121 Quartz.jpg


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crosstimber
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PostPosted: Nov 20, 2013 10:53    Post subject: Re: Collection of Michael Shaw  

With Inner Mongolia finished, next up is Jiangxi Province.


2141 Fluorite.jpg
 Description:
Fluorite
Xiefang Mine, Ruijin Co., Ganzhou Pref., Jiangxi Prov., China
3.6 x 6.4 cm
Mint green cuboctahedral fluorite crystal with polysynthetic growth on a triangular shard of white quartz.
 Viewed:  18952 Time(s)

2141 Fluorite.jpg



2138 Fluorite.jpg
 Description:
Fluorite
Xiefang Mine, Ruijin Co., Ganzhou Pref., Jiangxi Prov., China
4.8 x 7.0 cm
Mint green cuboctahedral fluorite crystals on a matrix of quartz.
 Viewed:  18932 Time(s)

2138 Fluorite.jpg



1714 Fluorite.jpg
 Description:
Fluorite
De'an Mine, Wushan, De'an Co., Jiujiang Pref., Jiangxi Prov., China
12.0 x 13.2 cm
Octahedral green fluorite crystals with purple edges etched from a plate of white quartz.
 Viewed:  18947 Time(s)

1714 Fluorite.jpg



1144 Stibnite.jpg
 Description:
Stibnite
Wuling Antimony Mine, Shaft #3, Qingjiang, Jiujiang Pref. Jiangxi Prov., China
0.9 x 18.3 cm
Single, doubly-terminated, stibnite crystal with low-angle chisel terminations.
 Viewed:  18934 Time(s)

1144 Stibnite.jpg


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Mike Wood




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PostPosted: Nov 20, 2013 13:32    Post subject: Re: Collection of Michael Shaw  

Beautiful quartz specimen from Huanggang Mine No.2 Michael (2121Quartz.jpg), I don't think I've seen that kind of structure before on quartz - thanks for showing it to us.
Also your octahedral fluorite plate from De'an Mine, Wushan (1714Fluorite.jpg) is remarkable. I was wondering if you obtained it as it is shown or did you have it prepared, if you don't mind me asking? And what reagent was it etched with!? I would have thought that HF acid would dissolve fluorite, but I don't know what else would dissolve quartz...

Best regards, Mike
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crosstimber
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PostPosted: Nov 20, 2013 15:57    Post subject: Re: Collection of Michael Shaw  

Thanks for your comments Mike. The habit for the quartz from the Huanggang mine is not new, but specimens like the one I posted are apparently not too common in dealer stock (at least at the shows that I attend). I picked this one up at the Denver Show this past Sept. and there were only 2 dealers that had specimens similar to this.

Regarding the De'an mine fluorite - I acquired it as shown. I assume it was prepared in HF as I know of no other reagent that will dissolve quartz. The dangers associated with using HF are well known, so best to let well-equipped labs prepare these specimens.

Regards, Michael
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Mike Wood




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PostPosted: Nov 20, 2013 16:31    Post subject: Re: Collection of Michael Shaw  

"The dangers associated with using HF are well known, so best to let well-equipped labs prepare these specimens."

Absolutely. Thank you for your informative reply Michael.

Regards, Mike
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crosstimber
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PostPosted: Nov 25, 2013 10:41    Post subject: Re: Collection of Michael Shaw  

Today's post will feature Sichuan Province, home of fragrant and spicy cuisine and panda bears. In the mid to late 1990s, the mines/prospects at Mt. Xuebaoding produced countless specimens of scheelite, aquamarine, and cassiterite as well as less common species such as kesterite and mushitonite. Unfortunately, mineral specimens from this locale have become relatively scarce on dealer shelves today.


0965 Beryl.jpg
 Description:
Beryl var. aquamarine
Mt. Xuebaoding, Pingwu Co., Mianyang Pref., Sichuan Prov., China
4.5 x 6.6 cm
Glassy pale blue aquamarine crystals resting on a matrix of silvery bladed muscovite.
 Viewed:  18577 Time(s)

0965 Beryl.jpg



0956 Scheelite.jpg
 Description:
Scheelite
Mt. Xuebaoding, Pingwu Co., Mianyang Pref., Sichuan Prov., China
4.7 x 6.6 cm
Pseudo-octahedral orange scheelite crystals on silvery white muscovite.
 Viewed:  18606 Time(s)

0956 Scheelite.jpg



0964 Beryl.jpg
 Description:
Beryl var. aquamarine
Mt. Xuebaoding, Pingwu Co., Mianyang Pref., Sichuan Prov., China
3.6 x 4.9 cm
Glassy pale blue aquamarine crystals associated with silvery bladed muscovite crystals.
 Viewed:  18596 Time(s)

0964 Beryl.jpg



1045 Cassiterite (2).jpg
 Description:
Cassiterite
Mt. Xuebaoding, Pingwu Co., Mianyang Pref., Sichuan Prov., China
3.8 x 4.2 cm
Lustrous black twinned cassiterite crystal with a semi-circular group of muscovite crystals on one side.
 Viewed:  18598 Time(s)

1045 Cassiterite (2).jpg


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Don Lum




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PostPosted: Nov 25, 2013 17:11    Post subject: Re: Collection of Michael Shaw  

Beautiful Scheelite, Michael.
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PostPosted: Nov 27, 2013 11:21    Post subject: Re: Collection of Michael Shaw  

Thanks Don. The scheelite is one of my favorites. I wish I had acquired a few more when there were so many to be had.

Today's post will finish up Sichuan Province with some odds and ends from locations other than Mt. Xuebaoding.



1170 Quartz.jpg
 Description:
Baryte on quartz
Jinkhouhe District, Leshan Pref., Sichuan Prov., China
10.0 x 12.0 cm
Colorless transparent quartz crystals studded with milky white tabular Baryte crystals to 1 cm.
 Viewed:  18457 Time(s)

1170 Quartz.jpg



1295 Epidote on quartz.jpg
 Description:
Quartz
Hongquizhen Quarry, Meigu, Liangshan Pref., Sichuan Prov., China
7.5 x 9.0 cm
Bladed, dark green epidote crystals scattered over a matrix of quartz crystals.
 Viewed:  18461 Time(s)

1295 Epidote on quartz.jpg



1321 Quartz var. amethyst.jpg
 Description:
Quartz var. amethyst
Hongquizhen Quarry, Meigu, Liangshan Pref., Sichuan Prov., China
6.5 x 7.0 cm
Glassy amethyst crystals with groups of small, dark-green epidote crystals included within and on the surface of the quartz.
 Viewed:  18459 Time(s)

1321 Quartz var. amethyst.jpg



1257 Barite.jpg
 Description:
Baryte
Xichang Co., Liangshan Aut. Pref., Sichuan Prov. China
7.2 x 8.5 cm
Sharp, chiesel-shaped, golden-brown, Baryte crystals with steep terminations and subtle color zoning.
 Viewed:  18478 Time(s)

1257 Barite.jpg


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GneissWare




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PostPosted: Nov 27, 2013 11:32    Post subject: Re: Collection of Michael Shaw  

Very nice Chinese specimens. Xuebaoding is one of my favorite localities, but China has produced so many fine specimens and localities, of which you seem to be well represented.
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PostPosted: Nov 27, 2013 13:56    Post subject: Re: Collection of Michael Shaw  

Amazing specimens Michael. I particularly like the Baryte on quartz (1170 Quartz.jpg) - never seen such a thing before !
Regards, Mike
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PostPosted: Nov 27, 2013 15:46    Post subject: Re: Collection of Michael Shaw  

And Michael, I will have the Cassiterite http://www.mineral-forum.com/message-board/files/1045_cassiterite_2_595.jpg (1045 Cassiterite (2).jpg) :-)
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PostPosted: Nov 27, 2013 17:54    Post subject: Re: Collection of Michael Shaw  

Thank you Bob, Mike, and Pierre. We have been very fortunate to experience a wealth of fantastic specimens during the past 20 years, as the Chinese mineral market developed. It will be interesting to see if the future supply changes as large mining companies take over some of the smaller mines. For example, the recent issue of Min. Rec. noted that a commercial mining company has purchased the Jinlong Hill prospects, which had been worked by artisinal miners for specimens. The new owners will send all of the hematite to the smelters, and It is estimated that the site will be worked out in 3-4 months. Also, I wonder if shows such as the recent Changsha Show will kindle a more local interest in mineral collecting?

Michael
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PostPosted: Nov 28, 2013 06:04    Post subject: Re: Collection of Michael Shaw  

A really interesting Baryte specimen, Michael http://www.mineral-forum.com/message-board/files/1257_Baryte_187.jpg (1257 Baryte.jpg); reminds me of the famous "Meißelspat" Barytes from Clara Mine in Black Forest.

Tobi
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PostPosted: Nov 28, 2013 07:59    Post subject: Re: Collection of Michael Shaw  

Beautiful, Michael. I particularly like the look of cassiterite.
Roger.
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PostPosted: Nov 28, 2013 10:11    Post subject: Re: Collection of Michael Shaw  

Thank you Tobi and Roger. I'll have to see if they have any photos of the Clara Mine Barytes on Mindat, Tobi. I don't have any specimens from the Clara Mine in my collection.

Michael
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PostPosted: Dec 02, 2013 11:28    Post subject: Re: Collection of Michael Shaw  

With today's post, I will show the only mineral specimen in our collection from Xinjiang and start on Yunnan, the last of the Chinese provinces for which we have specimens.

The almandine from Xinjiang has a little story which I'll relate. About 20 years ago, our son had a Chinese classmate in school. We invited his family to our home for dinner one evening, and while talking about our interests, I showed them a few minerals including several from China. Later that summer, I received a call from the father. He said he had just returned from visiting his family in China and he had something for me. When we met, he gave me the 2 garnets pictured below and a "wind erosion stone" from Xinjiang. The latter was accompanied by a written description (in Chinese) of the 5 ornamental stones that the Chinese valued. While not catalogued in my collection, the wind erosion stone occupies a prominent place on my display shelf.



0931 Almandine.jpg
 Description:
Almandine
Altay No. 3 mine, Fuyun Co., Xinjiang Aut. Reg., China
2.8 cm, 3.7 cm
Loose dark red-brown, dodacahedral garnet crystals with trapezohedral modifications.
 Viewed:  18059 Time(s)

0931 Almandine.jpg



Viewing stone 2.jpg
 Description:
Wind erosion stone
Xinjaing Autonomous Region, China
6.7 cm.
 Viewed:  18097 Time(s)

Viewing stone 2.jpg



1696 Babingtonite.jpg
 Description:
Babingtonite
Qiaojia Co, Zhaotong Pref., Yunnan Prov., China
4.8 x 5.9 cm
Tabular black babingtonite crystals associated with pale green prehnite and colorless quartz crystals
 Viewed:  18063 Time(s)

1696 Babingtonite.jpg



1616 Hemimorphite.jpg
 Description:
Hemimorphite
Wenshan Mine, Wenshan Co., Wenshan Pref., Yunnan Prov. China
8.0 x 11.5 cm
 Viewed:  18078 Time(s)

1616 Hemimorphite.jpg


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PostPosted: Dec 02, 2013 11:49    Post subject: Re: Collection of Michael Shaw  

Hello,
When I was a student, I was enthralled by the symmetry of garnets. It is a nice entry into crystallography.
Roger.
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PostPosted: Dec 02, 2013 14:32    Post subject: Re: Collection of Michael Shaw  

Michael, Viewing stone 2 ( http://www.mineral-forum.com/message-board/files/viewing_stone_2_176.jpg ) looks like a very special stone. I've never seen anything like it.

Don

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PostPosted: Dec 02, 2013 19:02    Post subject: Re: Collection of Michael Shaw  

I too am enthralled by the 'wind erosion stone'. I love things like that. I'm sure your Chinese friend meant it as a very special gift. The two garnets are nice also.
Nice story Michael, thanks so much for sharing it.

Sincerely, Mike
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PostPosted: Dec 04, 2013 09:35    Post subject: Re: Collection of Michael Shaw  

Thanks for your comments Roger, Don, and Mike. At the time it was given to me, I didn't understand the full significance of the wind erosion stone. After reading the recent Mineralogical Record Supplement on Crystalline Treasures of China, I was surprised to learn of the immense interest in stones such as these. In case you don't take the MR, I will mention that there are millions of "viewing stone" enthusiasts in China. They even have a collector's magazine, a government-administered viewing stone organization, and viewing stone museums and parks. You hit the nail on the head Mike, this was clearly a special gift.

A few more from Yunnan Province today, and this will finish up our China collection.

Michael



2058 Calcite.jpg
 Description:
Calcite
Wenshan Mine, Wenshan Co., Yunnan Prov., China
4.0 x 14.0 cm
A divergent group of elongate colorless scalenohedral calcite crystals.
 Viewed:  17908 Time(s)

2058 Calcite.jpg



2061 Calcite.jpg
 Description:
Calcite
Wenshan Mine, Wenshan Co., Yunnan Prov., China
5.7 x 7.3 cm
A thin plate composed of small colorless calcite crystals with a second generation of larger scalenohedral calcites lining the top of the plate.
 Viewed:  17916 Time(s)

2061 Calcite.jpg



2055 Pyrite concretion.jpg
 Description:
Pyrite
Dongchuan orefield, Kunming Pref., Yunnan Prov., China
6.5 x 6.7 cm
These things have always fascinated me. Concentric rings of metallic pyrite encircling a spherical slate concretion.
 Viewed:  17933 Time(s)

2055 Pyrite concretion.jpg


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