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Michael Shaw
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Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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 Posted: Jun 27, 2022 13:01 Post subject: Re: Collection of Michael Shaw |
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An aesthetically challenged but interesting pseudomorph.
| Mineral: | Goethite after Magnetite |
| Locality: | | Erongo Region, Namibia |  |
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| 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. |
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| Viewed: |
2449 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Jul 03, 2022 09:43 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Stilbite (Subgroup) |
| Locality: | | Dyer Quarry, Birdsboro, Berks County, Pennsylvania, USA | |
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| Dimensions: | 6.0 x 4.0 cm |
| Description: |
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| Viewed: |
2344 Time(s) |
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| Mineral: | Stilbite (Subgroup) |
| Locality: | | Dyer Quarry, Birdsboro, Berks County, Pennsylvania, USA | |
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| Dimensions: | 6.0 x 4.0 cm |
| Description: |
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| Viewed: |
2344 Time(s) |
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| Mineral: | Stilbite (Subgroup) |
| Locality: | | Dyer Quarry, Birdsboro, Berks County, Pennsylvania, USA | |
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| Dimensions: | 6.0 x 4.0 cm |
| Description: |
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| Viewed: |
2342 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Jul 04, 2022 11:31 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Prehnite |
| Locality: | | Lower New Street Quarry, Paterson, Passaic County, New Jersey, USA | |
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| Dimensions: | 7.1 x 5.3 cm |
| Description: |
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| Viewed: |
2268 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Jul 08, 2022 08:35 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Fluorite |
| Locality: | | La Fluorita Dulcita Cu prospect, Cochise County, Arizona, USA | |
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| 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. |
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| Viewed: |
2131 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | La Fluorita Dulcita Cu prospect, Cochise County, Arizona, USA | |
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| Dimensions: | 7.0 x 5.0 x 2.0 cm |
| Description: |
| Back of the specimen showing the quartz casts of calcite. |
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| Viewed: |
2133 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Jul 10, 2022 08:21 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Silver |
| Locality: | | Alhambra Mine (Blue Bell Mine), Black Hawk District, Big Burro Mountains, Grant County, New Mexico, USA | |
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| Dimensions: | 4.2 x 3.8 x 0.8 cm |
| Description: |
| Cream-colored dolomite encasing crystallized dendritic silver with minor arsenides (skutterudite, safflorite). |
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| Viewed: |
2043 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Jul 11, 2022 13:36 Post subject: Re: Collection of Michael Shaw |
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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.
| Mineral: | Uraninite |
| Locality: | | Ruggles Mine, Grafton, Grafton County, New Hampshire, USA | |
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| 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. |
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| Viewed: |
1936 Time(s) |
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| Mineral: | Muscovite |
| Locality: | | Reynolds Mine, Springfield, Sullivan County, New Hampshire, USA | |
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| Dimensions: | 2.4 x 5.5 x 7.9 cm |
| Description: |
| Pseudohexagonal muscovite crystals with embedded red almandine and a black schorl crystal. |
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| Viewed: |
1946 Time(s) |
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| Mineral: | Beryl |
| Locality: | | Reynolds Mine, Springfield, Sullivan County, New Hampshire, USA | |
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| Dimensions: | 4.0 x 3.6 x 2.0 cm |
| Description: |
| A small section of glassy Beryl var. aquamarine. |
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| Viewed: |
1936 Time(s) |
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| Mineral: | Graftonite |
| Locality: | | Rice Quarry, Groton, Grafton County, New Hampshire, USA | |
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| Dimensions: | 4.0 x 3.7 x 2.3 cm |
| Description: |
| Reddish-brown Graftonite, an uncommon phosphate, showing distinct cleavage and remnant gray Triphylite. |
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| Viewed: |
1936 Time(s) |
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| Mineral: | Feldspar group |
| Locality: | | Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA | |
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| 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. |
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| Viewed: |
1935 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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| Posted: Jul 11, 2022 14:05 Post subject: Re: Collection of Michael Shaw |
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| 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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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Jul 11, 2022 14:17 Post subject: Re: Collection of Michael Shaw |
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| 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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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Jul 14, 2022 11:10 Post subject: Re: Collection of Michael Shaw - Historical specimens |
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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.
| Mineral: | Boulangerite |
| Locality: | | Sala Silver Mine, Sala, Västmanland, Sweden | |
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| Dimensions: | 7.5 x 3.5 x 3.8 cm |
| Description: |
| Coarse-grained lustrous silvery boulangerite. |
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| Viewed: |
1717 Time(s) |
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| Mineral: | Boulangerite |
| Locality: | | Sala Silver Mine, Sala, Västmanland, Sweden | |
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| Dimensions: | 7.5 x 3.5 x 3.8 cm |
| Description: |
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| Viewed: |
1708 Time(s) |
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| Mineral: | _ Boulangerite Label |
| Description: |
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| Viewed: |
1707 Time(s) |
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| Mineral: | _ Boulangerite Label |
| Description: |
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| Viewed: |
1711 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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| Posted: Jul 14, 2022 16:10 Post subject: Re: Collection of Michael Shaw - Historical specimens |
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| 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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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Jul 14, 2022 20:51 Post subject: Re: Collection of Michael Shaw - Historical specimens |
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| 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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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Jul 19, 2022 08:20 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Quartz (variety smoky quartz) |
| Locality: | | Government Pit, Albany, Carroll County, New Hampshire, USA | |
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| Dimensions: | 6.0 x 4.1 cm |
| Description: |
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| Viewed: |
1304 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Jul 21, 2022 09:08 Post subject: Re: Collection of Michael Shaw |
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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.
| Mineral: | Galena |
| Locality: | | Rosiclare, Rosiclare Sub-District, Hardin County, Illinois, USA | |
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| Dimensions: | 6.5 x 5.5 x 3.0 cm |
| Description: |
| A group of unusual skeletal octahedral galena crystals with minor purple fluorite. |
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| Viewed: |
1177 Time(s) |
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| Mineral: | Galena |
| Locality: | | Rosiclare, Rosiclare Sub-District, Hardin County, Illinois, USA | |
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| Dimensions: | 6.5 x 5.5 x 3.0 cm |
| Description: |
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| Viewed: |
1178 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Jul 24, 2022 07:47 Post subject: Re: Collection of Michael Shaw |
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Another classic from the Southern Illinois Fluorspar District.
| Mineral: | Witherite |
| Locality: | | Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA | |
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| Dimensions: | 8.0 x 5.0 x 4.5 cm |
| Description: |
| A group of lustrous, well-formed yellowish- white witherite crystals. |
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| Viewed: |
992 Time(s) |
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| Mineral: | Witherite |
| Locality: | | Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA | |
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| Dimensions: | 8.0 x 5.0 x 4.5 cm |
| Description: |
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| Viewed: |
985 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Jul 30, 2022 09:01 Post subject: Re: Collection of Michael Shaw |
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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.
| Mineral: | Szaibelyite |
| Locality: | | Stinson Beach, Marin County , California, USA | |
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| Dimensions: | 7.1 x 4.4 cm |
| Description: |
| A thin mat of creamy white felted szaibelyite crystals on dark green serpentine. |
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| Viewed: |
774 Time(s) |
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| Mineral: | Szaibelyite in Serpentine |
| Locality: | | Stinson Beach, Marin County , California, USA | |
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| Dimensions: | 7.1 x 4.4 cm |
| Description: |
| Backside view showing veinlets of szaibelyite coursing through the serpentine matrix. |
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| Viewed: |
770 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 185
Location: UK
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| Posted: Jul 30, 2022 17:38 Post subject: Re: Collection of Michael Shaw |
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| 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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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Jul 31, 2022 08:54 Post subject: Re: Collection of Michael Shaw |
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| 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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Peter Lemkin
Joined: 18 Nov 2016
Posts: 385
Location: Prague
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| Posted: Jul 31, 2022 10:13 Post subject: Re: Collection of Michael Shaw |
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| 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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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Aug 01, 2022 09:38 Post subject: Re: Collection of Michael Shaw |
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An early addition to the collection in 1964.
| Mineral: | Hausmannite |
| Locality: | | Bengal Mine, Stambaugh, Menominee Iron Range, Iron County, Michigan, USA | |
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| 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. |
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573 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1811
Location: Oklahoma
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| Posted: Aug 04, 2022 13:19 Post subject: Re: Collection of Michael Shaw |
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One of the new Vanadinites from Tissaf, Morocco that appeared at the 2022 SMAM show.
| Mineral: | Vanadinite |
| Locality: | | Tissaf, Missour, Boulemane Province, Fès-Meknès Region, Morocco | |
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| Dimensions: | 5.4 × 3.3 × 2.1 cm |
| Description: |
| Lustrous, doubly terminated, brownish-yellow vanadinite crystals with deeply hoppered terminations and geometric color zoning. |
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| Viewed: |
401 Time(s) |
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