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15 Aug-18:09:50 Re: collection of michael shaw (Silvia)
15 Aug-15:14:12 Re: collection of michael shaw (Michael Shaw)
15 Aug-14:24:59 Panasqueira minerals and panasqueira art - silvia's collection (Silvia)
15 Aug-14:13:01 Re: collection of michael shaw (Silvia)
15 Aug-11:16:51 Re: collection of michael shaw (Michael Shaw)
15 Aug-10:01:33 Re: the tama higuchi collection (Tamahiguchi)
14 Aug-20:36:52 Re: monthly mineral chronicles, mineral guides and more... (Crocoite)
14 Aug-18:59:26 Re: don lum collection (Don Lum)
14 Aug-17:40:16 Re: dynamics involved in quartz forming hexagonal rings? (Eck Noch)
14 Aug-17:37:12 Re: dynamics involved in quartz forming hexagonal rings? (Eck Noch)
14 Aug-17:23:02 The mizunaka collection - quartz (Am Mizunaka)
14 Aug-17:07:47 Re: dynamics involved in quartz forming hexagonal rings? (Donn C.)
14 Aug-17:06:03 Re: dynamics involved in quartz forming hexagonal rings? (Bob Morgan)
14 Aug-16:51:22 Re: pseudomorph chemistry (Jordi Fabre)
14 Aug-16:07:36 Re: collection of firmo espinar (Firmo Espinar)
14 Aug-15:12:48 Re: dynamics involved in quartz forming hexagonal rings? (Eck Noch)
14 Aug-14:34:58 Re: dynamics involved in quartz forming hexagonal rings? (Eck Noch)
14 Aug-13:50:14 Re: pseudomorph chemistry (Roger Warin)
14 Aug-13:29:29 Dynamics involved in quartz forming hexagonal rings? (Donn C.)
14 Aug-12:49:00 Re: pseudomorph chemistry (Daniel Garcia)
14 Aug-10:42:17 Re: twinned topaz? (Yannick Cosson)
14 Aug-09:40:20 Re: collection of volkmar stingl (Volkmar Stingl)
14 Aug-08:57:33 Re: pseudomorph chemistry (Roger Warin)
14 Aug-04:44:55 Re: new generation for picture - ploum (Ploum)
14 Aug-02:34:28 Re: pseudomorph chemistry (Peter Lemkin)

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Collection of Michael Shaw
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Michael Shaw
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PostPosted: Jun 27, 2022 13:01    Post subject: Re: Collection of Michael Shaw  

An aesthetically challenged but interesting pseudomorph.


2810 Goethite ps. magnetite - Erongo Region, Namibia.jpg
 Mineral: Goethite after Magnetite
 Locality:
Erongo Region, Namibia
 Dimensions: 3,5 x 3.3 cm
 Description:
An unusual pseudomorph of goethite after magnetite presenting as a dull brown crystal preserving the octahedral crystal habit of the magnetite.
 Viewed:  2450 Time(s)

2810 Goethite ps. magnetite - Erongo Region, Namibia.jpg


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PostPosted: Jul 03, 2022 09:43    Post subject: Re: Collection of Michael Shaw  




2837 Stellerite - Dyer Quarry, Gibralter, Berks Co., Pennsylvania.jpg
 Mineral: Stilbite (Subgroup)
 Locality:
Dyer Quarry, Birdsboro, Berks County, Pennsylvania, USA
 Dimensions: 6.0 x 4.0 cm
 Description:
 Viewed:  2345 Time(s)

2837 Stellerite - Dyer Quarry, Gibralter, Berks Co., Pennsylvania.jpg



2837 Stellerite (2) - Dyer Quarry, Gibralter, Berks Co., Pennsylvania.jpg
 Mineral: Stilbite (Subgroup)
 Locality:
Dyer Quarry, Birdsboro, Berks County, Pennsylvania, USA
 Dimensions: 6.0 x 4.0 cm
 Description:
 Viewed:  2345 Time(s)

2837 Stellerite (2) - Dyer Quarry, Gibralter, Berks Co., Pennsylvania.jpg



2837 Stellerite (3) - Dyer Quarry, Pennsylvania.jpg
 Mineral: Stilbite (Subgroup)
 Locality:
Dyer Quarry, Birdsboro, Berks County, Pennsylvania, USA
 Dimensions: 6.0 x 4.0 cm
 Description:
 Viewed:  2343 Time(s)

2837 Stellerite (3) - Dyer Quarry, Pennsylvania.jpg


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PostPosted: Jul 04, 2022 11:31    Post subject: Re: Collection of Michael Shaw  




Prehnite - Lower New Street Quarry, Paterson, Passaic Co., New Jersey.jpg
 Mineral: Prehnite
 Locality:
Lower New Street Quarry, Paterson, Passaic County, New Jersey, USA
 Dimensions: 7.1 x 5.3 cm
 Description:
 Viewed:  2269 Time(s)

Prehnite - Lower New Street Quarry, Paterson, Passaic Co., New Jersey.jpg


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PostPosted: Jul 08, 2022 08:35    Post subject: Re: Collection of Michael Shaw  




2834 Fluorite on Quartz - La Fluorita Dulcita Claim, Cochise Co., Arizona.jpg
 Mineral: Fluorite
 Locality:
La Fluorita Dulcita Cu prospect, Cochise County, Arizona, USA
 Dimensions: 7.0 x 5.0 x 2.0 cm
 Description:
Light purple translucent octahedral fluorite crystals covering white quartz epimorphs of rhombohedral and scalenohedral calcite. Collected in 2011.
 Viewed:  2132 Time(s)

2834 Fluorite on Quartz - La Fluorita Dulcita Claim, Cochise Co., Arizona.jpg



2834 Fluorite on Quartz (back) - La Fluorita Dulcita Claim, Cochise Co., Arizona.jpg
 Mineral: Fluorite
 Locality:
La Fluorita Dulcita Cu prospect, Cochise County, Arizona, USA
 Dimensions: 7.0 x 5.0 x 2.0 cm
 Description:
Back of the specimen showing the quartz casts of calcite.
 Viewed:  2134 Time(s)

2834 Fluorite on Quartz (back) - La Fluorita Dulcita Claim, Cochise Co., Arizona.jpg


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PostPosted: Jul 10, 2022 08:21    Post subject: Re: Collection of Michael Shaw  




2842 Silver - Alhambra Mine, Grant Co., New Mexico.jpg
 Mineral: Silver
 Locality:
Alhambra Mine (Blue Bell Mine), Black Hawk District, Big Burro Mountains, Grant County, New Mexico, USA
 Dimensions: 4.2 x 3.8 x 0.8 cm
 Description:
Cream-colored dolomite encasing crystallized dendritic silver with minor arsenides (skutterudite, safflorite).
 Viewed:  2044 Time(s)

2842 Silver - Alhambra Mine, Grant Co., New Mexico.jpg


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PostPosted: Jul 11, 2022 13:36    Post subject: Re: Collection of Michael Shaw  

As a young collector growing up in New England in the 1960s, I was fortunate to be able to visit and collect at quite a few well-known pegmatites. The following few minerals were all collected pre-1964 and have been in my collection for almost 60 years. I wonder what these localities would look like today.


1476 Gummite - Ruggles Mine, Grafton, Grafton Co., New Hampshire.jpg
 Mineral: Uraninite
 Locality:
Ruggles Mine, Grafton, Grafton County, New Hampshire, USA
 Dimensions: 11.2 x 8.6 x 4.5 cm
 Description:
A rich specimen of secondary uranium alteration products consisting of bright orange “gummite” and a yellow mixture of soddyite and perhaps uranophane. Black specks of uraninite are also present along with books of muscovite.
 Viewed:  1937 Time(s)

1476 Gummite - Ruggles Mine, Grafton, Grafton Co., New Hampshire.jpg



1975 Muscovite, Almandine, Schorl - Reynolds Mine, Springfield, Sullivan Co., New Hampshire.jpg
 Mineral: Muscovite
 Locality:
Reynolds Mine, Springfield, Sullivan County, New Hampshire, USA
 Dimensions: 2.4 x 5.5 x 7.9 cm
 Description:
Pseudohexagonal muscovite crystals with embedded red almandine and a black schorl crystal.
 Viewed:  1947 Time(s)

1975 Muscovite, Almandine, Schorl - Reynolds Mine, Springfield, Sullivan Co., New Hampshire.jpg



Beryl var. aquamarine - Reynolds Mine, Springfield, Sullivan Co., New Hampshire.jpg
 Mineral: Beryl
 Locality:
Reynolds Mine, Springfield, Sullivan County, New Hampshire, USA
 Dimensions: 4.0 x 3.6 x 2.0 cm
 Description:
A small section of glassy Beryl var. aquamarine.
 Viewed:  1937 Time(s)

Beryl var. aquamarine - Reynolds Mine, Springfield, Sullivan Co., New Hampshire.jpg



2836 Graftonite - Rice Mine, Groton, Grafton Co., New Hampshire (2).jpg
 Mineral: Graftonite
 Locality:
Rice Quarry, Groton, Grafton County, New Hampshire, USA
 Dimensions: 4.0 x 3.7 x 2.3 cm
 Description:
Reddish-brown Graftonite, an uncommon phosphate, showing distinct cleavage and remnant gray Triphylite.
 Viewed:  1937 Time(s)

2836 Graftonite - Rice Mine, Groton, Grafton Co., New Hampshire (2).jpg



2829 Perthite - West Grafton, New Hampshire.jpg
 Mineral: Feldspar group
 Locality:
Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
 Dimensions: 7.6 x 5.6 x 2.5 cm
 Description:
Pale tan microcline host with intergrowths of lighter-colored albite lamellae coursing through the microcline groundmass. This variety of feldspar is known as perthite.
 Viewed:  1936 Time(s)

2829 Perthite - West Grafton, New Hampshire.jpg


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silvia




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PostPosted: Jul 11, 2022 14:05    Post subject: Re: Collection of Michael Shaw  

I do like your Uraninite specimen. My partner and I have a fondness for Uranium bearing minerals. Uraninite is one of particular interest, not the best looking mineral, but one worthy of any fine mineral collection.
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PostPosted: Jul 11, 2022 14:17    Post subject: Re: Collection of Michael Shaw  

silvia wrote:
I do like your Uraninite specimen. My partner and I have a fondness for Uranium bearing minerals. Uraninite is one of particular interest, not the best looking mineral, but one worthy of any fine mineral collection.


Thanks Silvia. Yes, I agree. With exception of the crystals from the Swamp No. 1 Quarry in Maine, uraninite is not very exciting.
Michael
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PostPosted: Jul 14, 2022 11:10    Post subject: Re: Collection of Michael Shaw - Historical specimens  

Minerals from recently discovered locations generate a great deal of excitement among mineral collectors, but there is something special about historical specimens that I really appreciate. The boulangerite specimen pictured below was collected in the 1840s and was in the mineral collection of Jacob Henrik af Forselles, the chief mining officer at the Sala Silver Mine. It later became part of the mineral cabinet of Swedish collector Leif Engman. Many of the Sala Mine buildings have been preserved/reconstructed, and today the mine is a tourist location.


2841 Boulangerite - Sala Mine, Vastmanland, Sweden.jpg
 Mineral: Boulangerite
 Locality:
Sala Silver Mine, Sala, Västmanland, Sweden
 Dimensions: 7.5 x 3.5 x 3.8 cm
 Description:
Coarse-grained lustrous silvery boulangerite.
 Viewed:  1718 Time(s)

2841 Boulangerite - Sala Mine, Vastmanland, Sweden.jpg



2841 Boulangerite (2) - Sala Mine, Sala, Vastmanland, Sweden.jpg
 Mineral: Boulangerite
 Locality:
Sala Silver Mine, Sala, Västmanland, Sweden
 Dimensions: 7.5 x 3.5 x 3.8 cm
 Description:
 Viewed:  1709 Time(s)

2841 Boulangerite (2) - Sala Mine, Sala, Vastmanland, Sweden.jpg



2841 Boulangerite Label (2).jpg
 Mineral: _ Boulangerite Label
 Description:
 Viewed:  1708 Time(s)

2841 Boulangerite Label (2).jpg



2841 - Boulangerite Label.jpg
 Mineral: _ Boulangerite Label
 Description:
 Viewed:  1712 Time(s)

2841 - Boulangerite Label.jpg


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PostPosted: Jul 14, 2022 16:10    Post subject: Re: Collection of Michael Shaw - Historical specimens  

Michael Shaw wrote:
Minerals from recently discovered locations generate a great deal of excitement among mineral collectors, but there is something special about historical specimens that I really appreciate. The boulangerite specimen pictured below was collected in the 1840s and was in the mineral collection of Jacob Henrik af Forselles, the chief mining officer at the Sala Silver Mine. It later became part of the mineral cabinet of Swedish collector Leif Engman. Many of the Sala Mine buildings have been preserved/reconstructed, and today the mine is a tourist location.


Hello Michael:

Another fantastic piece with some great photos – much appreciated.

I fully agree with your comments. Too often many people with little or no knowledge of mineralogy talk about preserving the historical heritage of an old mine, but little is done about preserving its mineralogical and geological heritage.

Silvia
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PostPosted: Jul 14, 2022 20:51    Post subject: Re: Collection of Michael Shaw - Historical specimens  

silvia wrote:
Michael Shaw wrote:
Minerals from recently discovered locations generate a great deal of excitement among mineral collectors, but there is something special about historical specimens that I really appreciate. The boulangerite specimen pictured below was collected in the 1840s and was in the mineral collection of Jacob Henrik af Forselles, the chief mining officer at the Sala Silver Mine. It later became part of the mineral cabinet of Swedish collector Leif Engman. Many of the Sala Mine buildings have been preserved/reconstructed, and today the mine is a tourist location.


Hello Michael:

Another fantastic piece with some great photos – much appreciated.

I fully agree with your comments. Too often many people with little or no knowledge of mineralogy talk about preserving the historical heritage of an old mine, but little is done about preserving its mineralogical and geological heritage.

Silvia


Thanks Silvia. Whenever we travel, old mine locations are always on our list of places to visit.
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PostPosted: Jul 19, 2022 08:20    Post subject: Re: Collection of Michael Shaw  




Quartz var. smoky - Government Pit, Albany, Carroll Co., New Hampshire.jpg
 Mineral: Quartz (variety smoky quartz)
 Locality:
Government Pit, Albany, Carroll County, New Hampshire, USA
 Dimensions: 6.0 x 4.1 cm
 Description:
 Viewed:  1305 Time(s)

Quartz var. smoky - Government Pit, Albany, Carroll Co., New Hampshire.jpg


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PostPosted: Jul 21, 2022 09:08    Post subject: Re: Collection of Michael Shaw  

Lead ore was first discovered about one mile south of Rosiclare, Illinois in 1839 while sinking a well on the farm of Mr. James Anderson. In 1842, fluorite and galena were discovered on another nearby property. The Rosiclare Mine was eventually developed, and was at one time the largest fluorspar mine in the U.S. Several other properties were developed to exploit the Rosiclare Vein and became major producers including the Argo, Blue Diggings, Daisy, Eureka, and Hillside.

Orebodies in the Rosiclare District occurred as vein fillings along fault planes. Veins were generally narrow which negatively impacted the number of good specimens available. The American Fluorite Museum is located on the site of the Rosiclare Shaft and mill. It's well worth visiting if you are ever in the area.



2839 Galena (front) - Rosiclare, Hardin County, Illinois.jpg
 Mineral: Galena
 Locality:
Rosiclare, Rosiclare Sub-District, Hardin County, Illinois, USA
 Dimensions: 6.5 x 5.5 x 3.0 cm
 Description:
A group of unusual skeletal octahedral galena crystals with minor purple fluorite.
 Viewed:  1178 Time(s)

2839 Galena (front) - Rosiclare, Hardin County, Illinois.jpg



2839 Galena - Rosiclare, Hardin County, Illinois.jpg
 Mineral: Galena
 Locality:
Rosiclare, Rosiclare Sub-District, Hardin County, Illinois, USA
 Dimensions: 6.5 x 5.5 x 3.0 cm
 Description:
Back view.
 Viewed:  1179 Time(s)

2839 Galena - Rosiclare, Hardin County, Illinois.jpg


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PostPosted: Jul 24, 2022 07:47    Post subject: Re: Collection of Michael Shaw  

Another classic from the Southern Illinois Fluorspar District.


2840 - Witherite - Minerva No. 1 Mine, Cave-in-Rock, Hardin Co., Illinois.jpg
 Mineral: Witherite
 Locality:
Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
 Dimensions: 8.0 x 5.0 x 4.5 cm
 Description:
A group of lustrous, well-formed yellowish- white witherite crystals.
 Viewed:  993 Time(s)

2840 - Witherite - Minerva No. 1 Mine, Cave-in-Rock, Hardin Co., Illinois.jpg



Witherite - Minerva No. 1 Mine.jpg
 Mineral: Witherite
 Locality:
Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
 Dimensions: 8.0 x 5.0 x 4.5 cm
 Description:
 Viewed:  986 Time(s)

Witherite - Minerva No. 1 Mine.jpg


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PostPosted: Jul 30, 2022 09:01    Post subject: Re: Collection of Michael Shaw  

This piece wouldn't win any awards for beauty - Szaibelyite is an uncommon to rare basic magnesium borate. The following sample has been in my collection since it was collected in July 1963, but just got catalogued this week.


2849 Szaibelyite - Stinson Beach, Marin County, California.jpg
 Mineral: Szaibelyite
 Locality:
Stinson Beach, Marin County , California, USA
 Dimensions: 7.1 x 4.4 cm
 Description:
A thin mat of creamy white felted szaibelyite crystals on dark green serpentine.
 Viewed:  775 Time(s)

2849 Szaibelyite - Stinson Beach, Marin County, California.jpg



2849 Szaibelyite (reverse side) - Stinson Beach, Marin County, California.jpg
 Mineral: Szaibelyite in Serpentine
 Locality:
Stinson Beach, Marin County , California, USA
 Dimensions: 7.1 x 4.4 cm
 Description:
Backside view showing veinlets of szaibelyite coursing through the serpentine matrix.
 Viewed:  771 Time(s)

2849 Szaibelyite (reverse side) - Stinson Beach, Marin County, California.jpg


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PostPosted: Jul 30, 2022 17:38    Post subject: Re: Collection of Michael Shaw  

Michael Shaw wrote:
This piece wouldn't win any awards for beauty - Szaibelyite is an uncommon to rare basic magnesium borate. The following sample has been in my collection since it was collected in July 1963, but just got catalogued this week.


Fine sentiments, Michael.

Too often, we overlook the fact that as mineral collectors we are the custodians of a mines’ mineralogical and geological heritage. One of the many reasons I focus, whenever possible, on minerals from a specific locality, like Panasqueira and others too, is to appreciate the ore-body and the geological processes that created the minerals.

Sometime ago, I visited a ‘public financed’ Museum at a so-called historic site and was appalled by the lack of any significant examples of the mines mineralogical and geological heritage. I said to the young lady conducting the tour that if it were not for the presence of copper in the ore body, we would not even be having this tour.

I further stated that all the ‘stuff’ on display – period costumes, clothing, cooking utensils, etc., etc., etc., can be seen in a thousand rural museums anywhere in the UK, USA, Canada, Australia, New Zealand and across the European continent. She of course said the national Museum (taxpayer-funded) has minerals to view, but I told her that such an argument is not good enough in my view.

I will always maintain that the well-educated and well-read private collector is the only hope for preserving a mines’ mineralogical and geological heritage.

Keep up the fine work, Michael.
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PostPosted: Jul 31, 2022 08:54    Post subject: Re: Collection of Michael Shaw  

silvia wrote:
Michael Shaw wrote:
This piece wouldn't win any awards for beauty - Szaibelyite is an uncommon to rare basic magnesium borate. The following sample has been in my collection since it was collected in July 1963, but just got catalogued this week.


Fine sentiments, Michael.

Too often, we overlook the fact that as mineral collectors we are the custodians of a mines’ mineralogical and geological heritage. One of the many reasons I focus, whenever possible, on minerals from a specific locality, like Panasqueira and others too, is to appreciate the ore-body and the geological processes that created the minerals.

I will always maintain that the well-educated and well-read private collector is the only hope for preserving a mines’ mineralogical and geological heritage.

Keep up the fine work, Michael.


Thank you, Silvia, I appreciate your comments. It is unfortunate that many museums feel the need to install displays that incorporate all sorts of "gee whiz" components in order to cater to a certain segment of visitors that can't seem to appreciate displays which focus on the specimens themselves and the importance they most likely played in the sociologic and economic development of the area.
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PostPosted: Jul 31, 2022 10:13    Post subject: Re: Collection of Michael Shaw  

Michael Shaw wrote:
silvia wrote:
Michael Shaw wrote:
This piece wouldn't win any awards for beauty - Szaibelyite is an uncommon to rare basic magnesium borate. The following sample has been in my collection since it was collected in July 1963, but just got catalogued this week.


Fine sentiments, Michael.

Too often, we overlook the fact that as mineral collectors we are the custodians of a mines’ mineralogical and geological heritage. One of the many reasons I focus, whenever possible, on minerals from a specific locality, like Panasqueira and others too, is to appreciate the ore-body and the geological processes that created the minerals.

I will always maintain that the well-educated and well-read private collector is the only hope for preserving a mines’ mineralogical and geological heritage.

Keep up the fine work, Michael.


Thank you, Silvia, I appreciate your comments. It is unfortunate that many museums feel the need to install displays that incorporate all sorts of "gee whiz" components in order to cater to a certain segment of visitors that can't seem to appreciate displays which focus on the specimens themselves and the importance they most likely played in the sociologic and economic development of the area.



Along these lines, I for one am saddened that some of the top mineral museums have put their 'systematic' displays back in storage for exactly what you said....'shiny objects', which, yes, are large and esthetic, but without the homely and ugly minerals, the exhibit is more art than science to me.....I think it should be a balance and it is sad that most people only want the shiny objects and not the science.....sad. Science has been much vilified in recent decades - on purpose, but I digress....and this would take me off into tangents on the educational structures of society now and things political and political economy in the largest senses of those terms.
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PostPosted: Aug 01, 2022 09:38    Post subject: Re: Collection of Michael Shaw  

An early addition to the collection in 1964.


0208 Hausmannite (2) - Cannon Mine, Stambaugh, Iron County, Michigan.jpg
 Mineral: Hausmannite
 Locality:
Bengal Mine, Stambaugh, Menominee Iron Range, Iron County, Michigan, USA
 Dimensions: 10.0 x 6.2 cm
 Description:
Lustrous metallic black hausmannite crystals lining cavities in massive hausmannite associated with small patches calcite. In 1953, the Bengal Mine and adjacent Tully Mine were combined and with the addition of new property, it was renamed the Cannon Mine.
 Viewed:  574 Time(s)

0208 Hausmannite (2) - Cannon Mine, Stambaugh, Iron County, Michigan.jpg


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PostPosted: Aug 04, 2022 13:19    Post subject: Re: Collection of Michael Shaw  

One of the new Vanadinites from Tissaf, Morocco that appeared at the 2022 SMAM show.


2843 Vanadinite - Tissaf, Boulemane Prov., Morocco.jpg
 Mineral: Vanadinite
 Locality:
Tissaf, Missour, Boulemane Province, Fès-Meknès Region, Morocco
 Dimensions: 5.4 × 3.3 × 2.1 cm
 Description:
Lustrous, doubly terminated, brownish-yellow vanadinite crystals with deeply hoppered terminations and geometric color zoning.
 Viewed:  402 Time(s)

2843 Vanadinite - Tissaf, Boulemane Prov., Morocco.jpg


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