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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
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 Posted: Sep 01, 2024 08:25 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Calcite |
| Locality: | | Edgemont Uranium Mining District, Fall River County, South Dakota, USA |  |
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| Dimensions: | 11.3 x 9.0 x 4.1 cm |
| Description: |
| A shallow cavity in brown travertine lined with pale yellow rhombic calcites to 1.7 cm partially overgrown with a second generation of smaller colorless calcites. |
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6815 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
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| Posted: Sep 16, 2024 08:12 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Fluorite |
| Locality: | | Jaimina Mine, Obdulia vein, Caravia mining area, Trechorio, Carrales, Caravia, Comarca Oriente, Principality of Asturias (Asturias), Spain | |
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| Dimensions: | 7.5 x 5.5 x 4.2 cm |
| Description: |
Intergrown pale purple color-zoned fluorite crystals to 2.2 cm on edge.
The cube faces display prominent tetrahexahedral growth. |
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6507 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
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| Posted: Sep 19, 2024 09:51 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Creedite |
| Locality: | | Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua, Mexico | |
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| Dimensions: | 7.5 x 5.6 x 2.5 cm |
| Description: |
| Glassy transparent lilac-colored creedite crystals forming divergent clusters covering the top of a creedite matrix. |
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6357 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
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| Posted: Sep 23, 2024 14:56 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Celestine |
| Locality: | | Sakoany deposit, Katsepy Commune, Mitsinjo District, Boeny Region, Mahajanga (Majunga) Province, Madagascar | |
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| Dimensions: | 7.5 x 6.0 x 5.5 cm |
| Description: |
| A transparent blue celestine crystal measuring 5.3 cm tall with a glassy luster and chisel-shaped termination standing upright in a shallow cavity lined with smaller celestine crystals. |
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6172 Time(s) |
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| Mineral: | Celestine |
| Locality: | | Sakoany deposit, Katsepy Commune, Mitsinjo District, Boeny Region, Mahajanga (Majunga) Province, Madagascar | |
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| Dimensions: | 7.5 x 6.0 x 5.5 cm |
| Description: |
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| Viewed: |
6169 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
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| Posted: Sep 24, 2024 08:00 Post subject: Re: Collection of Michael Shaw - more Celestine |
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| Mineral: | Celestine |
| Locality: | | Laman deposit, Qala e Naw District, Badghis Province, Afghanistan | |
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| Dimensions: | 5.0 x 4.1 x 3.2 cm |
| Description: |
| Stout sky blue celestine crystals to 2.3 cm with small scalenohedral calcite crystals. |
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6075 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4248
Location: Germany
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| Posted: Sep 25, 2024 08:32 Post subject: Re: Collection of Michael Shaw - more Celestine |
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Hi Michael,
I really like your celestine specimens! Not a mineral that I collect but these two are great. Sakoany produces endless masses of celestine but some of them stand out and I would consider your specimen with that prominent flawless main crystal one of the outstanding ones.
The one from Afghanistan is also very beautiful. These are quite new and I think they will become a modern classic. Congratulations on getting one before they will disappear from the market in the future.
Best regards
Tobi
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
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| Posted: Sep 25, 2024 14:40 Post subject: Re: Collection of Michael Shaw - more Celestine |
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| Tobi wrote: | Hi Michael,
I really like your celestine specimens! Not a mineral that I collect but these two are great. Sakoany produces endless masses of celestine but some of them stand out and I would consider your specimen with that prominent flawless main crystal one of the outstanding ones.
The one from Afghanistan is also very beautiful. These are quite new and I think they will become a modern classic. Congratulations on getting one before they will disappear from the market in the future.
Best regards
Tobi |
Thank you Tobi. Celestine was first collected from the Sakoany deposit in the late 1960s, and many tons of specimens have been produced. I don't know what the current status of the deposit is, but there are still plenty of specimens on the market from which to choose. Of course many have significant damage, and others are simply jumbled masses of crystals. Although I already had a relatively nice celestine from this location that I acquired many years ago, this particular piece caught my eye because of the undamaged, large crystal, and the saturated color.
I first started seeing celestine specimens from Afghanistan about 2 years ago at U.S. shows. They have become somewhat more plentiful on the market and prices seem to have come down a bit. There were a couple of dealers who had pieces at the recent Denver Show. I don't know much about the locality, but I'm guessing that current and future production might be somewhat limited. That said, this piece met my criteria, so I decided to pick one up before they disappeared.
Best,
Michael
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
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| Posted: Sep 29, 2024 09:50 Post subject: Re: Collection of Michael Shaw - another celestine |
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| Mineral: | Celestine |
| Locality: | | Ungoza Mountain, Tupkaragan District, Mangystau Region, Kazakhstan | |
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| Dimensions: | 2.9 x 2.5 cm |
| Description: |
| A divergent group of prismatic celestine crystals heavily included with fine sand. |
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| Viewed: |
5658 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
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| Posted: Oct 01, 2024 08:18 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Fluorite |
| Locality: | | Milpo Mine, Cerro de Pasco, Atacocha mining district, Pasco Province, Pasco Department, Peru | |
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| Dimensions: | 2.6 x 1.8 cm |
| Description: |
| Modified purple cubes on a matrix of colorless calcite crystals. |
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| Viewed: |
5517 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
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| Posted: Oct 03, 2024 08:21 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Quartz |
| Locality: | | Dara-i-Pech pegmatite, Chapa Dara District, Kunar Province (Konar), Afghanistan | |
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| Dimensions: | 2.0 x 2.0 x 0.4 cm |
| Description: |
| Strange tabular blue quartz crystal owing its color to inclusions of tourmaline or perhaps an amphibole. |
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| Viewed: |
5356 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
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| Posted: Oct 06, 2024 09:21 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Barite |
| Locality: | | Sand pit, Rockenberg, Wetteraukreis, Darmstadt, Hesse/Hessen, Germany | |
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| Dimensions: | 3.3 x 3.0 x 3.2 cm |
| Description: |
| Sand-included bladed brown barite crystals forming a rosette-shaped cluster. These are very similar to the barite "roses" that are found in Oklahoma. |
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| Viewed: |
5014 Time(s) |
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| Mineral: | Barite |
| Locality: | | Sand pit, Rockenberg, Wetteraukreis, Darmstadt, Hesse/Hessen, Germany | |
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| Dimensions: | 3.3 x 3.0 x 3.2 cm |
| Description: |
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| Viewed: |
4994 Time(s) |
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| Mineral: | Barite |
| Locality: | | Lake Thunderbird area, Norman, Cleveland County, Oklahoma, USA | |
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| Dimensions: | 6.5 x 5.6 x 3.4 cm |
| Description: |
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| Viewed: |
4997 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4248
Location: Germany
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| Posted: Oct 07, 2024 07:20 Post subject: Re: Collection of Michael Shaw |
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| Michael Shaw wrote: | Barite
Locality: Sand Pit, Rockenberg, Wetteraukreis, Hesse, Germany
[...] Sand-included bladed brown barite crystals forming a rosette-shaped cluster. These are very similar to the barite "roses" that are found in Oklahoma. |
I live ~30-40 km away from Rockenberg and you see a lot of them here on shows and in collections. The mineralogical museum of my hometown Marburg has a specimen that weighs 4,5 tons and resides outside in a metal cage because several people took it as a chance to "collect" their own specimen there ;-)
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
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| Posted: Oct 07, 2024 13:08 Post subject: Re: Collection of Michael Shaw |
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| Tobi wrote: | | Michael Shaw wrote: | Barite
Locality: Sand Pit, Rockenberg, Wetteraukreis, Hesse, Germany
[...] Sand-included bladed brown barite crystals forming a rosette-shaped cluster. These are very similar to the barite "roses" that are found in Oklahoma. |
I live ~30-40 km away from Rockenberg and you see a lot of them here on shows and in collections. The mineralogical museum of my hometown Marburg has a specimen that weighs 4,5 tons and resides outside in a metal cage because several people took it as a chance to "collect" their own specimen there ;-) |
Tobi, this is the first one that I have ever come across. I'd like to see a picture of that 4.5 ton specimen. Is collecting still allowed at the location?
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4248
Location: Germany
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| Posted: Oct 07, 2024 14:07 Post subject: Re: Collection of Michael Shaw |
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| Michael Shaw wrote: | | Tobi, this is the first one that I have ever come across. |
I guess there are more of them here in Hesse than in the U.S. ;-)
| Michael Shaw wrote: | | I'd like to see a picture of that 4.5 ton specimen. |
Here's the German Wikipedia photo of the museum:
https://upload.wikimedia.org/wikipedia/commons/a/a2/Kornhaus_Marburg_%281%29.jpg
You can see the cage with the Rockenberg Beast inside ;-)
| Michael Shaw wrote: | | Is collecting still allowed at the location? |
A few years ago (maybe 6-8y) a friend of mine went collecting there, but I don't know the current status.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
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| Posted: Oct 10, 2024 11:14 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Opal |
| Locality: | | Quilpie, Quilpie Shire, Queensland, Australia | |
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| Dimensions: | 5.5 x 5.4 x 2.7 cm |
| Description: |
| A seam of glassy precious opal with flashes of blue, purple, neon green and orange on a brown sandstone matrix. |
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| Viewed: |
4494 Time(s) |
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