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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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 Posted: Aug 08, 2022 08:49 Post subject: Re: Collection of Michael Shaw |
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For lovers of Panasqueira minerals.
| Mineral: | Arsenopyrite, Siderite, Marcasite, Muscovite |
| Locality: | | Minas da Panasqueira, level 0, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal |  |
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| Dimensions: | 7.3 × 6.9 × 3.8 cm |
| Description: |
| Bright metallic silvery arsenopyrite crystals, with parallel epigenetic marcasite growths on matrix, with small siderites crystals and leafy muscovite aggregates. |
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| Viewed: |
2963 Time(s) |
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| Mineral: | Arsenopyrite, Marcasite, Siderite, Muscovite |
| Locality: | | Minas da Panasqueira, level 0, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal | |
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| Dimensions: | 7.3 × 6.9 × 3.8 cm |
| Description: |
| Detail of arsenopyrite and marcasite. |
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| Viewed: |
2963 Time(s) |
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| Mineral: | SIderite, Muscovite, Arsenopyrite, Marcasite |
| Locality: | | Minas da Panasqueira, level 0, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal | |
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| Dimensions: | 7.3 × 6.9 × 3.8 cm |
| Description: |
| Siderite with muscovite and arsenopyrite. |
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| Viewed: |
2961 Time(s) |
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| Mineral: | Muscovite, Siderite, Arsenopyrite, Marcasite |
| Dimensions: | 7.3 × 6.9 × 3.8 cm |
| Description: |
| Detail of muscovite with siderite and arsenopyrite. |
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| Viewed: |
2962 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Aug 15, 2022 11:16 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Hydroboracite |
| Locality: | | Hisarcik Mine, Emet Borate deposit, Emet, Emet District, Kütahya Province, Aegean Region, Turkey | |
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| Dimensions: | 2.2 × 1.5 × 0.8 cm |
| Description: |
| Divergent sprays of acicular colorless Hydroboracite crystals. |
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| Viewed: |
2886 Time(s) |
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silvia
Joined: 10 Oct 2021
Posts: 230
Location: UK
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| Posted: Aug 15, 2022 14:13 Post subject: Re: Collection of Michael Shaw |
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| Michael Shaw wrote: | | For lovers of Panasqueira minerals. |
A really lovely Panasqueira specimen - and superb photos. Again, great close-ups - and I do love the close-up shots.
You do know I have a passion for Panasqueira specimens so my opinion will always be biased.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Aug 15, 2022 15:14 Post subject: Re: Collection of Michael Shaw |
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| silvia wrote: | | Michael Shaw wrote: | | For lovers of Panasqueira minerals. |
You do know I have a passion for Panasqueira specimens so my opinion will always be biased. |
Thanks Silvia, Yes, I was thinking of you when I posted that specimen.
Beautiful little Cassiterite BTW.
Michael
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silvia
Joined: 10 Oct 2021
Posts: 230
Location: UK
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| Posted: Aug 15, 2022 18:09 Post subject: Re: Collection of Michael Shaw |
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| Michael Shaw wrote: | | silvia wrote: | | Michael Shaw wrote: | | For lovers of Panasqueira minerals. |
You do know I have a passion for Panasqueira specimens so my opinion will always be biased. |
Thanks Silvia, Yes, I was thinking of you when I posted that specimen.
Beautiful little Cassiterite BTW.
Michael |
Many thanks for your support – but the specimen will only be on display about my neck.
We have a few more Panasqueira minerals to post, but we just could not get any good photos of them with the old Nikon Cool Pix A100. The Cassiterite was one of the specimens that we put to one side until we could take a photo that did it justice. We have another, Arsenopyrite/Marcasite/Pyrite that just would not photograph well – akin to taking a photo of a mirror. Our new Canon camera allows us to photograph some very challenging specimens. Photos of these will be posted in the coming weeks.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Aug 22, 2022 07:55 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Pyromorphite |
| Locality: | | Des Farges Mine (Les Farges Mine), Ussel, Corrèze, Nouvelle-Aquitaine, France | |
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| Dimensions: | 4.8 × 3.9 × 2.2 cm |
| Description: |
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| Viewed: |
2635 Time(s) |
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| Mineral: | Pyromorphite |
| Dimensions: | 4.8 × 3.9 × 2.2 cm |
| Description: |
| Pyromorphite crystals showing distinct color zoning with greenish yellow prisms and yellow terminations. |
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| Viewed: |
2635 Time(s) |
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Dany Mabillard
Joined: 01 Jul 2019
Posts: 279
Location: Valais
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| Posted: Aug 22, 2022 11:27 Post subject: Re: Collection of Michael Shaw |
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| What a beautiful Pyromorphite from France. Not easy to fine good ones. The color is more orange in the photo than actually ? I've seen specimens that are "more" green.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Aug 22, 2022 11:52 Post subject: Re: Collection of Michael Shaw |
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| Dany Mabillard wrote: | | What a beautiful Pyromorphite from France. Not easy to fine good ones. The color is more orange in the photo than actually ? I've seen specimens that are "more" green. |
Dany, thank you for your comment.
Actually, the color of this pyromorphite is quite accurate, at least on my monitor. There is quite a bit of variation in the color of pyromorphite specimens from this location. I have another piece that is apple green. One of the reasons I acquired this piece was because of the difference in color.
Michael
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Aug 26, 2022 11:17 Post subject: Re: Collection of Michael Shaw - Pyromorphite |
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| Mineral: | Pyromorphite |
| Locality: | | La Vidale Mine (Brezies), Asprières, Saint-Martin de Bouillac, Villefranche-de-Rouergue, Aveyron, Occitanie, France | |
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| Dimensions: | 3.6 x 3.0 cm |
| Description: |
| Barrel-shaped pyromorphite crystals with very curved faces and edges and a uniform yellowish-green color. Collected March 2011. |
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| Viewed: |
2383 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Aug 28, 2022 09:47 Post subject: Re: Collection of Michael Shaw - Hematite |
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| Mineral: | Hematite |
| Locality: | | Chub Lake, Hailesboro, St. Lawrence County, New York, USA | |
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| Dimensions: | 15.5 x 8.2 cm |
| Description: |
| Lustrous thin platy hematite crystals to 0.5 cm in size covering the top surface of a massive hematite matrix. Collected in August 1996. |
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| Viewed: |
2281 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Sep 04, 2022 07:30 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Galena |
| Locality: | | Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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| Dimensions: | 7.7 × 6.3 × 5.6 cm |
| Description: |
| Bright cubeoctahedral galena crystals with hoppered growths on some faces associated with pyrite aggregates and small barite crystals. |
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| Viewed: |
2115 Time(s) |
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| Mineral: | Galena, Pyrite |
| Locality: | | Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco | |
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| Dimensions: | 7.7 × 6.3 × 5.6 cm |
| Description: |
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| Viewed: |
2078 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Sep 19, 2022 13:15 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Albite |
| Locality: | | Cove Creek, Magnet Cove, Hot Spring County, Arkansas, USA | |
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| Dimensions: | 10.6 x 8.3 cm |
| Description: |
| Blocky cream-colored albite crystals collected by Albert Kidwell in 1996. |
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| Viewed: |
1819 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Sep 21, 2022 10:11 Post subject: Re: Collection of Michael Shaw - Elbaite |
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| Mineral: | Elbaite |
| Locality: | | Rubaya, Bahunde, Masisi Territory, North Kivu Province (Kivu), Democratic Republic of the Congo (Zaire) | |
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| Dimensions: | 7.0 × 1.2 cm |
| Description: |
| Doubly terminated elbaite crystal with an upper pyramidal termination and a pedion for the lower termination. |
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| Viewed: |
1721 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Sep 23, 2022 15:34 Post subject: Re: Collection of Michael Shaw - Smithsonite |
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| Mineral: | Smithsonite |
| Locality: | | M'Fouati, M'Fouati District, Bouenza Department, Republic of the Congo | |
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| Dimensions: | 9.9 x 7.0 x 2.2 cm |
| Description: |
| A thick botryoidal crust of robin’s egg blue smithsonite from the Yanga Koubenza Quarries. These could easily be confused with specimens from New Mexico's Kelly Mine. |
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| Viewed: |
1579 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Sep 26, 2022 10:25 Post subject: Re: Collection of Michael Shaw |
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| Mineral: | Calcite |
| Locality: | | Meikle Mine, Bootstrap District, Elko County, Nevada, USA | |
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| Dimensions: | 7.2 x 4.9 x 2.4 cm |
| Description: |
| A group of three colorless glassy scalenohedral calcite crystals. Collected on the 328 m level by Casey Jones in 1997. |
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| Viewed: |
1434 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Sep 28, 2022 14:06 Post subject: Re: Collection of Michael Shaw |
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When I acquired this specimen at the recent Denver Show it was labelled as Hematite pseudo after Magnetite. Although 'martite' does occur at this locality, I decided to do a simple streak test today. I tested several areas of the specimen and the streak was uniformly grey-black, so there is no hematite, just pure magnetite.
| Mineral: | Magnetite |
| Locality: | | Iron Springs District, Iron County, Utah, USA | |
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| Dimensions: | 4.0 x 3.5 cm |
| Description: |
| A small group of relatively lustrous octahedral magnetite crystals. |
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| Viewed: |
1305 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Oct 01, 2022 11:16 Post subject: Re: Collection of Michael Shaw |
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I am not a species collector per se, but I decided to add this specimen to the collection for several reasons. (1) It was collected by someone that I knew and admired, (2) it was from the Type Locality, and (3) it is an uncommon mineral that I had never heard of, so it represented an opportunity to learn about it and the location it came from.
Schoderite is a hydrous aluminum phosphovanadate named for William P. Schoder, a longtime research chemist with Union Carbide Nuclear Company, for his outstanding contributions to the metallurgy of vanadium. Although the VanNavSan Claim is the Type Locality, Schoderite probably reaches it best development at the Union Carbide Mine, in Wilson Springs, Garland County, Arkansas, where it forms attractive, bladed microcrystals. I will be on the lookout for one of these :>)
| Mineral: | Schoderite |
| Locality: | | VanNavSan Claim, Fish Creek Range, Gibellini District, Eureka County, Nevada, USA | |
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| Dimensions: | 7.7 x 5.0 cm |
| Description: |
| Yellow-orange microcrystals of schoderite covering the top surface of a friable light brown matrix. Collected from the Type Locality by David Shannon, July 1995. |
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| Viewed: |
1189 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Oct 03, 2022 09:52 Post subject: Re: Collection of Michael Shaw - Azurite |
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| Mineral: | Azurite |
| Locality: | | Morenci Mine, Morenci, Copper Mountain District, Shannon Mountains, Greenlee County, Arizona, USA | |
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| Dimensions: | 7.3 x 7.0 x 2.5 cm |
| Description: |
| Tightly intergrown bright blue bladed rosettes of azurite on botryoidal green malachite. |
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| Viewed: |
1077 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 3913
Location: Good Old Germany
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| Posted: Oct 03, 2022 11:49 Post subject: Re: Collection of Michael Shaw |
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Wonderful Morenci specimen! I'm not that much into azurite as many other collectors but I like these specimens from Morenci with the colourful contrast of blue on green. The only azurite specimen in my collection is also one from Morenci ;-)
Very nice, Michael!
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 1851
Location: Oklahoma
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| Posted: Oct 04, 2022 12:51 Post subject: Re: Collection of Michael Shaw |
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| Tobi wrote: | Wonderful Morenci specimen! I'm not that much into azurite as many other collectors but I like these specimens from Morenci with the colourful contrast of blue on green. The only azurite specimen in my collection is also one from Morenci ;-)
Very nice, Michael! |
Thanks Tobi,
Each of the other Morenci specimens in the collection are quite different. The other specimens are either azurite or malachite alone, so I was happy to acquire this combination specimen.
Michael
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