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Bob's rocks
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GneissWare




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PostPosted: Apr 03, 2012 07:51    Post subject: Re: Bob's rocks  

Thank you Master!
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PostPosted: Apr 03, 2012 10:42    Post subject: Re: Bob's rocks  

Jordi Fabre wrote:
GneissWare wrote:

Baryte
Asturias Comunidad Autonoma, Spain

I'm sure there is a better locality?!?


Sure Bob, is from: Moscona Mine, Solís, Corvera de Asturias, Villabona mining area, Asturias, Spain, and here you have good info about this mining area that we uploaded from FMF Spain.

You can see other examples of these Barytes in the Spanish FMF Gallery -> https://www.mineralogia.es/index.php?searchterms=barita+moscona&searchauthor=-&level=search

I already added the right details to your photo


Jordi, Any idea when these were produced?
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PostPosted: Apr 03, 2012 12:08    Post subject: Re: Bob's rocks  

Breathtaking Sweet Home rhodo! If you get bored with this specimen, you can give it to me ;-)
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PostPosted: Apr 03, 2012 12:16    Post subject: Re: Bob's rocks  

Tobias Martin wrote:
Breathtaking Sweet Home rhodo! If you get bored with this specimen, you can give it to me ;-)
_________________
Favourites: Fluorite, Quartz, Calcite, Garnet, Tourmaline, Beryl, Galena, Topaz, Wulfenite, Apatite.

Tobias,
I would have considered it, but you don't like rhodochrosite---at least its not in your list of favourites ;=))
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PostPosted: Apr 03, 2012 12:29    Post subject: Re: Bob's rocks  

Tobias...here are a few that are on your list of favourites.


JC86.jpg
 Description:
Calcite
Daye County, Huangshi Prefecture, Hubei Province, China
91.0 x 83.0 x 43.0 mm

Blocky, lustrous amber-yellow crystals of Calcite to 33 x 26 mm are perched on dark black limestone matrix.
 Viewed:  26795 Time(s)

JC86.jpg



JC234a.jpg
 Description:
Quartz
Second Sovietskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
71.0 x 68.0 x 46.0 mm

A complex, highly lustrous, opaque crystal of bright white Quartz measuring 68 x 59 x 36 mm is nicely perched on a perfectly trimmed, iron-stained matrix. No damage.
 Viewed:  26793 Time(s)

JC234a.jpg



JC234c.jpg
 Description:
Quartz
Second Sovietskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
71.0 x 68.0 x 46.0 mm

A complex, highly lustrous, opaque crystal of bright white Quartz measuring 68 x 59 x 36 mm is nicely perched on a perfectly trimmed, iron-stained matrix. No damage.
 Viewed:  26789 Time(s)

JC234c.jpg



RG1199a.jpg
 Description:
Wulfenite on Quartz
M'fouati, M'fouati District, Bouenza Region, Republic of the Congo (Brazzaville)
98.0 x 60.0 x 56.0 mm
A thick, orange-red tabular crystal of Wulfenite measuring 14 x 4 mm is nestled in a pocket of sharp, clear, lustrous Quartz crystals to 7 mm. Several small Quartz crystals are perched on the Wulfenite, as are what seems to be pale yellow Cerussite crystals. These specimens were produced in the 1960s or earlier, and this is a particularly fine example. No damage.
 Viewed:  26787 Time(s)

RG1199a.jpg



RG1201a.jpg
 Description:
Fluorite and Phenakite on Phlogopite
Birch Creek area, Inyo County, California, USA
87.0 x 59.0 x 50.0 mm
Purple octahedrons of Fluorite to 24 mm, accented by white Phenakite crystals to 6 mm, are nestled in green Phlogopite, providing a striking contrast. This interesting and attractive specimen was collected in the summer of 2011 by Chris Lehmann.
 Viewed:  26988 Time(s)

RG1201a.jpg


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Jordi Fabre
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PostPosted: Apr 03, 2012 14:21    Post subject: Re: Bob's rocks  

GneissWare wrote:
Jordi Fabre wrote:

Sure Bob, is from: Moscona Mine, Solís, Corvera de Asturias, Villabona mining area, Asturias, Spain, and here you have good info about this mining area that we uploaded from FMF Spain.

You can see other examples of these Barytes in the Spanish FMF Gallery -> https://www.mineralogia.es/index.php?searchterms=barita+moscona&searchauthor=-&level=search


Jordi, Any idea when these were produced?

Impossible to know, they are still coming out.
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PostPosted: Apr 04, 2012 01:10    Post subject: Re: Bob's rocks  

GneissWare wrote:
Tobias, I would have considered it, but you don't like rhodochrosite---at least its not in your list of favourites ;=))

Actually not, but those from Sweet Home Mine ARE on my list. Now that i mentioned that, i hope you'll consider it ;-)
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PostPosted: Apr 04, 2012 11:24    Post subject: Re: Bob's rocks  

Here are a couple of one of my favorite species....Stibnite.


JC001a.jpg
 Description:
Stibnite on Quartz with Siderite
Herja Mine (Kisbánya), Ilba-Baiut Metallogenic District, Baia Mare (Nagybánya), Maramures County (Judet), Romania
160.0 x 159.0 x 74.0 mm
Multiple sprays of Stibnite crystals to 45 mm are perched on a thin matrix of small Quartz and Siderite crystals. Siderite partly coats some of the Stibnite.
 Viewed:  26654 Time(s)

JC001a.jpg



JC001c.jpg
 Description:
Stibnite on Quartz with Siderite
Herja Mine (Kisbánya), Ilba-Baiut Metallogenic District, Baia Mare (Nagybánya), Maramures County (Judet), Romania
160.0 x 159.0 x 74.0 mm
closeup
 Viewed:  26695 Time(s)

JC001c.jpg



JC488.jpg
 Description:
Stibnite
Hunan Province, China
205.0 x 125.0 x 121.0 mm
Multiple thick lustrous black crystals of Stibnite to 125 x 17 x 9 mm with a slight bluish cast make up this exceptional 3-dimensional
specimen. Small secondary needles of Stibnite are perched on some of the larger Stibnite crystals. In excellent condition.

Based on the age of the specimen, I suspect this is actually from Wuling Mine, Qingjiang, Wuning Co., Jiujiang Prefecture, Jiangxi Province, China and was labeled Hunan because it was sold in Changsha.
 Viewed:  26660 Time(s)

JC488.jpg


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PostPosted: Apr 04, 2012 11:39    Post subject: Re: Bob's rocks  

GneissWare wrote:

Based on the age of the specimen, I suspect this is actually from Wuling Mine, Qingjiang, Wuning Co., Jiujiang Prefecture, Jiangxi Province, China and was labeled Hunan because it was sold in Changsha.


Absolutely!
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PostPosted: Apr 14, 2012 21:51    Post subject: Bob's rocks - Mt. Xuebaoding update  

Here are a few more Mt. Xuebaoding combo specimens...


RG1188.jpg
 Description:
Beryl ( var. Goshenite ) with Scheelite and Muscovite
Mt. Xuebaoding, Pingwu County, Mianyang Prefecture, Sichuan Province, China
76.0 x 61.0 x 39.0 mm overall
Orangish-yellow Scheelite tetrahedra to 15 mm are nestled amongst several flat, lustrous crystals of clear Beryl (v. Goshenite) to 39 mm, and accented by several nice rosettes of white Muscovite crystals to 15 mm across. Two of the beryls are intergrown forming a butterfly-shaped pseudo twin.
 Viewed:  26528 Time(s)

RG1188.jpg



RG1189.jpg
 Description:
Beryl ( var. Aquamarine ) with Cassiterite
Mt. Xuebaoding, Pingwu County, Mianyang Prefecture, Sichuan Province, China
63.0 x 52.0 x 32.0 mm overall
Blocky, highly lustrous, pale-blue Aquamarines to 38 mm are topped by a bright black Cassiterite twin measuring 24 x 22 x 20 mm. White Muscovite crystals to 13 mm provide an accent, as do small untwinned Cassiterite crystals to 5 mm.
 Viewed:  26476 Time(s)

RG1189.jpg



RG1190a.jpg
 Description:
Cassiterite on Muscovite with Beryl and Topaz
Mt. Xuebaoding, Pingwu County, Mianyang Prefecture, Sichuan Province, China
106.0 x 70.0 x 39.0 mm overall
Multiple, highly lustrous black Cassiterite crystals are nestled within a matrix of Muscovite blades to 13 mm forming rosettes. Cassiterite is present as both twinned crystals to 32 x 32 x 25 mm and untwinned crystals to 10 mm. Several clear, lustrous Beryl (v. Goshenite) crystals provide an accent. A small sherry-colored Topaz to 7 mm is nestled within one of the Muscovite rosettes; topaz are rare from this locality.
 Viewed:  26413 Time(s)

RG1190a.jpg



RG1190b.jpg
 Description:
Cassiterite on Muscovite with Beryl and Topaz
Mt. Xuebaoding, Pingwu County, Mianyang Prefecture, Sichuan Province, China
106.0 x 70.0 x 39.0 mm overall
Multiple, highly lustrous black Cassiterite crystals are nestled within a matrix of Muscovite blades to 13 mm forming rosettes. Cassiterite is present as both twinned crystals to 32 x 32 x 25 mm and untwinned crystals to 10 mm. Several clear, lustrous Beryl (v. Goshenite) crystals provide an accent. A small sherry-colored Topaz to 7 mm is nestled within one of the Muscovite rosettes; topaz are rare from this locality.
 Viewed:  26426 Time(s)

RG1190b.jpg



RG1190c.jpg
 Description:
Cassiterite on Muscovite with Beryl and Topaz
Mt. Xuebaoding, Pingwu County, Mianyang Prefecture, Sichuan Province, China
106.0 x 70.0 x 39.0 mm overall
Multiple, highly lustrous black Cassiterite crystals are nestled within a matrix of Muscovite blades to 13 mm forming rosettes. Cassiterite is present as both twinned crystals to 32 x 32 x 25 mm and untwinned crystals to 10 mm. Several clear, lustrous Beryl (v. Goshenite) crystals provide an accent. A small sherry-colored Topaz to 7 mm is nestled within one of the Muscovite rosettes; topaz are rare from this locality.
 Viewed:  26453 Time(s)

RG1190c.jpg



GW001218.JPG
 Description:
Scheelite with Fluorite
Mt. Xuebaoding, Pingwu County, Mianyang Prefecture, Sichuan Province, China
80.0 x 70.0 x 60.0 mm overall
A beautiful perfect orange Scheelite crystal 4.5 cm across is set perfectly amongst colorless translucent crystallized fluorite, this all on a Muscovite matrix. No damage.
 Viewed:  26405 Time(s)

GW001218.JPG


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PostPosted: Apr 14, 2012 22:03    Post subject: Bob's rocks - Mt. Xuebaoding continued..  

One more...


RG1134a.jpg
 Description:
Cassiterite and Beryl on Muscovite
Mt. Xuebaoding, Pingwu County, Mianyang Prefecture, Sichuan Province, China
86.0 x 78.0 x 37.0 mm overall
A perfect, lustrous black twin of Cassiterite, measuring 39 x 33 x 17 mm, is perched on a pair of pale blue Beryl crystals to 27 x 9 mm, all nestled in a matrix of Muscovite crystals to 18 mm across. No damage.
 Viewed:  26459 Time(s)

RG1134a.jpg


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PostPosted: Apr 14, 2012 23:55    Post subject: Re: Bob's rocks  

Scheelite surrounded by limpid beryl - very nice!
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PostPosted: Apr 16, 2012 03:22    Post subject: Re: Bob's rocks  

Nice specimens and good photos. I also love Xuebaoding minerals.
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PostPosted: Apr 16, 2012 11:40    Post subject: Re: Bob's rocks  

Carles Millan wrote:
I also love Xuebaoding minerals.


Thanks Carles. I also like this locality because of the unusual associations. I found a few more that I need to photograph and post, and I think you will like them.
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PostPosted: Jul 08, 2012 17:48    Post subject: Re: Bob's rocks  

These are better photos of a previous specimen -- https://www.mineral-forum.com/message-board/files/gw000939_127.jpg


SH-3483a.jpg
 Description:
Tetrahedrite with Rhodochrosite, Fluorite, Quartz and minor Galena and Pyrite
Sweet Home Mine, Alma District, Buckskin Gulch, Park County, Colorado, USA
104 x 80 x 57 mm

Specimen consists of 14 mm Tetrahedrites with a bluish irridescence, accented by nearly transparent, cherry-red Rhodochrosites to 6 mm, and light purple cubes of Fluorite to 4 mm. Clear needles of Quartz to 7 mm are also present. Much of the dark matrix is comprised of 1 to 2 mm Galena and Pyrite crystals. No damage.
 Viewed:  25561 Time(s)

SH-3483a.jpg



SH-3483b.jpg
 Description:
Tetrahedrite with Rhodochrosite, Fluorite, Quartz and minor Galena and Pyrite
Sweet Home Mine, Alma District, Buckskin Gulch, Park County, Colorado, USA
104 x 80 x 57 mm

Another view.

Tetrahedrites with a bluish irridescence, accented by nearly transparent, cherry-red Rhodochrosites to 6 mm, and light purple cubes of Fluorite to 4 mm. Clear needles of Quartz to 7 mm are also present. Much of the dark matrix is comprised of 1 to 2 mm Galena and Pyrite crystals. No damage.
 Viewed:  25586 Time(s)

SH-3483b.jpg


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PostPosted: Jul 08, 2012 18:01    Post subject: Re: Bob's rocks  

Another Sweet Home piece -- Galena specimens are hard to get, particularly with the distinctive Rhodo that makes clear where it is from.


SH-0001s.jpg
 Description:
Galena with Rhodochrosite and Quartz, with minor Sphalerite and Chalcopyrite
Sweet Home Mine, Alma District, Buckskin Gulch, Park County, Colorado, USA
163 x 95 x 42 mm

Gray Galena crystals to 8 mm, consisting of both octahedral and cuboctahedral habits are accented by brassy, iridescent Chalcopyrite to 4mm and lustrous black Sphalerite crystals to 7 mm. Clear needles of Quartz to 21 mm long and a single, transparent, cherry-red rhomb of Rhodochrosite measuring 9x6x6 mm provide accents. No damage.
 Viewed:  25509 Time(s)

SH-0001s.jpg


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PostPosted: Jul 13, 2012 22:56    Post subject: Re: Bob's rocks  

Here are a few relatively new things from Inner Mongolia..


RG1211a.jpg
 Description:
Hedenbergite
Huanggangliang Iron Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia A.R., China
89.0 x 65.0 x 49.0 mm
Elongate, semi-lustrous, green tabular crystals of Hedenbergite are arranged in a semi-radiating structure, and are accented with white on the apical termination. Several clear and etched crystals of Calcite to 8 mm are perched on the Hedenbergite. A nice specimen from this prolific locality with no damage.
 Viewed:  25365 Time(s)

RG1211a.jpg



RG1212.jpg
 Description:
Fluorite
Huanggangliang Iron Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia A.R., China
85.0 x 67.0 x 42.0 mm
Semi-lustrous, deep-purple Flourite completely covers all sides of this specimen, which consists of parallel and intergrown plates of Fluorite matrix. The Fluorite habits range from sharp, individual cubes to 5 mm, and complex clusters of crystals to 20 mm comprised of many, slightly rounded cubes. A patch of earthy, pale-purple botryoidal material provides an accent. No damage.
 Viewed:  25368 Time(s)

RG1212.jpg



RG1214.jpg
 Description:
Rhodonite with Tremolite
Chaobuleng Mine, Dongwu Qí, Xilinguole, Inner Mongolia A. R., China
130.0 x 68.0 x 58.0 mm
Lustrous, flattened blades of Rhodonite form a large subparallel, seemingly doubly-terminated group measuring 130 x 55 x 36 mm, accompanied by a similar perpendicular group that is cleaved on the base. The Rhodonite is mostly opaque and light-pink colored, with portions that are gemmy and cherry-red. Although there is some damage, it is masked by the ragged crystal terminations.
 Viewed:  25341 Time(s)

RG1214.jpg



RG1216a.jpg
 Description:
Ilvaite with Quartz
Huanggangliang Iron Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia A.R., China
127.0 x 100.0 x 63.0 mm
This bizarre-looking specimen consists of pale-green fibrous Hedenbergite coating a large dark Ilvaite crystal measuring 90 x 34 x 7 mm. The Ilvaite's flat termination is completely covered with slightly sceptered milky Quartz crystals oriented parallel to the Ilvaite's c-axis. A large, 75 x 15 mm, sceptered Quartz with a glassy cap is intergrown with a doubly-terminated Quartz, and these are accompanied by numerous other smaller sceptered Quartz.
 Viewed:  25304 Time(s)

RG1216a.jpg


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PostPosted: Jul 13, 2012 23:01    Post subject: Re: Bob's rocks  

A few more from Inner Mongolia....


RG1217a.jpg
 Description:
Quartz with Calcite
Huanggangliang Iron Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia A.R., China
105.0 x 105.0 x 67.0 mm
Lustrous, glassy, light-smoky Quartz crystals to 56 x 33 mm support a stack of thin, flattened, light-pink Calcite blades to 44 mm across. Several other minor stacks of similar light-pink Calcite, some partly cleaved, provide an accent. Minor chipping is visible with a 10x loupe on the termination of one of the Quartz, otherwise they are pristine. This is an excellent and unusual piece from this prolific Chinese locality.
 Viewed:  25319 Time(s)

RG1217a.jpg



RG1218a.jpg
 Description:
Quartz
Huanggangliang Iron Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia A.R., China
92.0 x 69.0 x 60.0 mm
Highly lustrous, clear glassy Quartz crystals to 65 x 26 mm, some doubly terminated, are nearly completely covered with a second generation of 1 to 2 mm lustrous, glassy Quartz creating a very sparkly display. No damage.
 Viewed:  25317 Time(s)

RG1218a.jpg



RG1210.jpg
 Description:
Andradite
Huanggangliang Iron Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia A.R., China
122.0 x 64.0 x 52.0 mm
Sharp, lustrous, dark-olive-green dodectahedral Andradite crystals to 12 mm are almost completely covered by a thin secondary growth of golden Andradite. Several white crystals of Calcite accent the specimen. Nearly pristine with some marginal chipping, and a few spots where the secondary growth is removed exposing the underlying Andradite.
 Viewed:  25362 Time(s)

RG1210.jpg


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PostPosted: Jul 14, 2012 11:37    Post subject: Re: Bob's rocks  

In https://www.mineral-forum.com/message-board/viewtopic.php?p=24506#24506 GneissWare wrote:
Rhodonite
Huanggangliang Iron Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia A.R., China

According Berthold Ottens these Rhodonites are not from Huanggangliang area but from Chaobuleng Mine, Dongwu Qí, Xilinguole, Inner Mongolia A. R., China. As it is well known, Berthold is usually well informed... ;-) Do you want your caption modified?

BTW the brown material covering the Rhodonite is Tremolite, we analyzed it, so not doubts about this.
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PostPosted: Jul 14, 2012 13:02    Post subject: Re: Bob's rocks  

Jordi Fabre wrote:
In https://www.mineral-forum.com/message-board/viewtopic.php?p=24506#24506 GneissWare wrote:
Rhodonite
Huanggangliang Iron Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia A.R., China

According Berthold Ottens these Rhodonites are not from Huanggangliang area but from Chaobuleng Mine, Dongwu Qí, Xilinguole, Inner Mongolia A. R., China. As it is well known, Berthold is usually well informed... ;-)

Do you want your caption modified?



Shì de, Dàshī ! [ 是的,大师! ] -- Means "Yes, Master!"
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