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26 Feb-06:51:22 National museum cardiff will no longer maintain expertise in mineralogy and petrology (James Catmur)
26 Feb-06:02:08 Re: collection of carles millan (Tobi)
26 Feb-05:39:22 Re: collection of carles millan (Enrique Llorens)
26 Feb-05:04:48 Re: collection of carles millan (Carles Millan)
26 Feb-03:18:46 Re: collection of carles millan (Tobi)
26 Feb-01:33:53 Re: collection of volkmar stingl (Volkmar Stingl)
26 Feb-00:09:00 Re: collection of carles millan (Am Mizunaka)
25 Feb-22:41:51 Re: collection of carles millan (Don Lum)
25 Feb-18:10:33 East coast gem, mineral and fossil show 2024! (Jordi Fabre)
25 Feb-17:45:08 Re: the mizunaka collection (Am Mizunaka)
25 Feb-16:12:26 Re: don lum collection (Don Lum)
25 Feb-15:06:36 Re: collection of michael shaw (Michael Shaw)
25 Feb-14:42:13 Re: collection of carles millan (Carles Millan)
25 Feb-13:43:29 Re: gail spann's tucson experience, 2024 (Tobi)
25 Feb-13:40:23 Re: collection of carles millan (Tobi)
25 Feb-13:35:40 Re: collection of michael shaw (Tobi)
25 Feb-13:32:55 Re: the mizunaka collection (Tobi)
25 Feb-01:36:30 The mizunaka collection - agate (Am Mizunaka)
24 Feb-09:30:59 Re: collection of michael shaw - clara mine (Michael Shaw)
23 Feb-14:45:25 Re: don lum collection (Don Lum)
23 Feb-07:33:22 Re: collection of volkmar stingl (Volkmar Stingl)
23 Feb-07:04:32 Re: collection of volkmar stingl (Carles Millan)
23 Feb-05:35:09 Re: collection of enrique llorens (Enrique Llorens)
23 Feb-05:23:35 Re: collection of volkmar stingl (Volkmar Stingl)
22 Feb-04:48:15 The mizunaka collection - quartz (Am Mizunaka)

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Collection of Michael Shaw
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Michael Shaw
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PostPosted: Nov 20, 2023 12:36    Post subject: Re: Collection of Michael Shaw  




2867 Staurolite - Keivy Mountains, Murmansk Oblast, Russia.jpg
 Mineral: Staurolite
 Locality:
Keivy Mountains, Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia
 Dimensions: 5.5 x 3.8 x 1.8 cm
 Description:
Several dark brown staurolite crystals embedded in a silvery mica schist.
Crystals consist of singles to 3.1 cm and a 60° penetration twin.
 Viewed:  4381 Time(s)

2867 Staurolite - Keivy Mountains, Murmansk Oblast, Russia.jpg



2867 Staurolite 2 - Keivy Mountains, Murmansk Oblast, Russia.jpg
 Mineral: Staurolite
 Locality:
Keivy Mountains, Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia
 Dimensions: 5.5 x 3.8 x 1.8 cm
 Description:
Single crystals on the other side.
 Viewed:  4409 Time(s)

2867 Staurolite 2 - Keivy Mountains, Murmansk Oblast, Russia.jpg


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Michael Shaw
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PostPosted: Nov 26, 2023 11:21    Post subject: Re: Collection of Michael Shaw  




2926 Schorl on Albite (2) - Shengus, Gilgit-Baltistan, Pakistan.jpg
 Mineral: Albite and Schorl
 Locality:
Shengus (Shingus), Baltistan District, Gilgit-Baltistan (Northern Areas), Pakistan
 Dimensions: 6.6 x 5.2 x 4.6 cm
 Description:
Several black schorl crystals to 1.2 cm in length embedded in crystallized blocky white albite. Small straw-colored fluorapatite crystals line several cavities and fluoresce bright yellow with SW UV.
 Viewed:  4327 Time(s)

2926 Schorl on Albite (2) - Shengus, Gilgit-Baltistan, Pakistan.jpg


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Michael Shaw
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PostPosted: Dec 01, 2023 08:30    Post subject: Re: Collection of Michael Shaw - Olivenite  




TN893 Olivenite - Milpillas Mine, Ciutace, Sonora, Mexico.jpg
 Mineral: Olivenite
 Locality:
Milpillas Mine, level 992, Cuitaca, Municipio Santa Cruz, Sonora, Mexico
 Dimensions: 2.0 x 1.3 cm
 Description:
a group of lustrous dark green Olivenite crystals in parallel to sub-parallel growth.
 Viewed:  4198 Time(s)

TN893 Olivenite - Milpillas Mine, Ciutace, Sonora, Mexico.jpg


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Michael Shaw
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PostPosted: Dec 04, 2023 14:16    Post subject: Re: Collection of Michael Shaw  




TN878 Calcite ps. Ikaite - Olenitsa River, Russia.jpg
 Mineral: Calcite after Ikaite (variety glendonite)
 Locality:
Olenitsa River, Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia
 Dimensions: 2.0 x 2.0 cm
 Description:
A spherical-shaped cluster of calcite pseudomorphs after ikaite.
 Viewed:  4079 Time(s)

TN878 Calcite ps. Ikaite - Olenitsa River, Russia.jpg


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Michael Shaw
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PostPosted: Dec 05, 2023 14:28    Post subject: Re: Collection of Michael Shaw  




TN882 Sphalerite - Burkesville Prospect, Central Tennessee Dist., Cumberland Co., Kentucky.jpg
 Mineral: Sphalerite
 Locality:
Sarco Prospects, Burkesville, Cumberland County, Kentucky, USA
 Dimensions: 2.5 x 2.0 cm
 Description:
 Viewed:  4031 Time(s)

TN882 Sphalerite - Burkesville Prospect, Central Tennessee Dist., Cumberland Co., Kentucky.jpg


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PostPosted: Dec 07, 2023 11:05    Post subject: Re: Collection of Michael Shaw  

Something a little different today.

The Campo del Cielo meteorite is an iron nickel meteorite that was discovered in 1576 although it was known to indigenous peoples well before that. The fall created numerous craters over an area of 55 km2 and the total weight of the fragments is estimated to be over 100 metric tons. Thousands of small fragments have been recovered from several of the craters making it one of the most prolific meteorite finds. Carbon-14 analysis of charred wood samples taken from beneath the fragments indicated the fall happened around 4,200-4,700 years ago. The age of the meteorite is estimated to be 4.5 billion years old.



2983 Kamacite - Gancedo, Doce de la Octubre, Chaco Province, Argentina.jpg
 Mineral: Iron (variety kamacite)
 Description:
Locality: Doce de la Octubre, Chaco Province, Argentina
Dimensions: 4.1 x 4.1 x 2.4 cm

A fragment of an Fe Ni meteorite. The meteorite is classified structurally as an octahedrite, the most common class of iron meteorites. The fragments of this particular meteorite contain an unusually high density of inclusions for an iron meteorite including 3.36 ppm iridium, 87 ppm gallium, 407 ppm germanium, 0.25% phosphorus, 0.43% cobalt, and 6.67% nickel, with the remaining 92.6% consisting of iron. It is thought that the numerous inclusions may have contributed to the disintegration of the original mass.
 Viewed:  3924 Time(s)

2983 Kamacite - Gancedo, Doce de la Octubre, Chaco Province, Argentina.jpg


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PostPosted: Dec 09, 2023 11:34    Post subject: Re: Collection of Michael Shaw  

Back to minerals from our own planet.


2909 Pyrite, Ferberite, Siderite - Panasqueira Mine, Covilha, Castelo Branco, Portugal.jpg
 Mineral: Pyrite, Ferberite, Siderite
 Locality:
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
 Dimensions: 7.6 x 5.2 x 3.6 cm
 Description:
Polycrystalline aggregates of brassy cubic pyrite crystals associated with black ferberite and lenticular tan siderite crystals.
 Viewed:  3800 Time(s)

2909 Pyrite, Ferberite, Siderite - Panasqueira Mine, Covilha, Castelo Branco, Portugal.jpg


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PostPosted: Dec 12, 2023 22:59    Post subject: Re: Collection of Michael Shaw  




2971 Pyrolusite - Bellary-Hospet Iron Belt, Karnataka, India.jpg
 Mineral: Pyrolusite
 Locality:
Hospet (Hosapete), Vijayanagara District, Karnataka, India
 Dimensions: 6.1 x 5.8 x 2.8 cm
 Description:
Bellary-Hospet Iron Belt, Karnataka, India

Radiating sprays of lustrous metallic black pyrolusite crystals from an unusual locality. Ex. Rustam Kothavala.
 Viewed:  3698 Time(s)

2971 Pyrolusite - Bellary-Hospet Iron Belt, Karnataka, India.jpg


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PostPosted: Dec 15, 2023 10:20    Post subject: Re: Collection of Michael Shaw  




2965 Pectolite on Prehnite - Prospect Park Quarry, Paterson, Passaic Co., New Jersey.jpg
 Mineral: Prehnite and Pectolite
 Locality:
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
 Dimensions: 6.1 x 5.7 x 3.1 cm
 Description:
Botryoidal to stalactitic green prehnite ps. anhydrite with tufts of white pectolite and minor laumontite. Ex. Rock Currier Collection #1587.
 Viewed:  3561 Time(s)

2965 Pectolite on Prehnite - Prospect Park Quarry, Paterson, Passaic Co., New Jersey.jpg


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PostPosted: Dec 18, 2023 12:37    Post subject: Re: Collection of Michael Shaw  




2970 Fluorite - Freiburg region, Baden-Wurttemburg, Germany.jpg
 Mineral: Fluorite
 Locality:
Baden-Württemberg, Germany
 Dimensions: 5.3 x 3.9 x 2.0 cm
 Description:
An intergrown group of lustrous pale green translucent fluorite cubes exhibiting color zoning and polysynthetic growth on the cube faces.
 Viewed:  3452 Time(s)

2970 Fluorite - Freiburg region, Baden-Wurttemburg, Germany.jpg


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James Catmur
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PostPosted: Dec 18, 2023 13:52    Post subject: Re: Collection of Michael Shaw  

Lovely
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PostPosted: Dec 19, 2023 05:52    Post subject: Re: Collection of Michael Shaw  

Most likely from the famous Clara Mine.
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PostPosted: Dec 19, 2023 10:20    Post subject: Re: Collection of Michael Shaw  

Tobi wrote:
Most likely from the famous Clara Mine.


Tobi, I was hoping you might weigh in on this piece. I appreciate your opinion on a more specific location.

Michael
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PostPosted: Dec 20, 2023 03:50    Post subject: Re: Collection of Michael Shaw  

Michael Shaw wrote:
Tobi wrote:
Most likely from the famous Clara Mine.

Tobi, I was hoping you might weigh in on this piece. I appreciate your opinion on a more specific location. Michael
But it's really just an opinion, not for certain. There are many localities with similar mineralization in that area, some of them (e.g. Ilse Mine, Hesselbach Mine, Anton Mine, Tannenboden Mine or Segen Gottes Mine) are also quite known, at least among collectors who like Black Forest minerals. And then there are are several smaller mines where your fluorite c o u l d come from ... But Clara Mine is such a large and major deposit that many many many - maybe most - of the "Freiburg" fluorites are from that deposit.
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PostPosted: Dec 20, 2023 10:24    Post subject: Re: Collection of Michael Shaw  

Tobi wrote:
Michael Shaw wrote:
Tobi wrote:
Most likely from the famous Clara Mine.

Tobi, I was hoping you might weigh in on this piece. I appreciate your opinion on a more specific location. Michael
But it's really just an opinion, not for certain.


Tobi, yes I understand it is just an opinion. I looked through all of the Clara Mine fluorite photos on Mindat and there were a few that were pretty similar. I have made a note in my catalog that the Clara Mine is a possible location for the fluorite.
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PostPosted: Dec 21, 2023 04:12    Post subject: Re: Collection of Michael Shaw  

You can also search photos on the forum, for example:

https://www.topminerals.info/index.php?searchterms=Black+Forest&searchauthor=-&level=search
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PostPosted: Dec 22, 2023 03:40    Post subject: Re: Collection of Michael Shaw  

Michael Shaw wrote:
Tobi wrote:
Michael Shaw wrote:
Tobi wrote:
Most likely from the famous Clara Mine.
Tobi, I was hoping you might weigh in on this piece. I appreciate your opinion on a more specific location. Michael
But it's really just an opinion, not for certain.
Tobi, yes I understand it is just an opinion. I looked through all of the Clara Mine fluorite photos on Mindat and there were a few that were pretty similar. I have made a note in my catalog that the Clara Mine is a possible location for the fluorite.
I would do the same. I think that a locality note like "Black Forest (maybe Clara Mine), Baden-Wuerttemberg, Germany" is the best idea, both for the catalog and the label.
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PostPosted: Dec 22, 2023 09:20    Post subject: Re: Collection of Michael Shaw  




2992 Dolomite ps. Calcite - Steinbruch Elzing, Germany.jpg
 Mineral: Dolomite ps. after Calcite
 Locality:
Elzing Quarry, Elzing, Chemnitz, Saxony/Sachsen, Germany
 Dimensions: 4.4 x 3.5 x 2.5 cm
 Description:
Several rhombic calcite crystals replaced by creamy white dolomite.
 Viewed:  2979 Time(s)

2992 Dolomite ps. Calcite - Steinbruch Elzing, Germany.jpg


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PostPosted: Dec 24, 2023 09:46    Post subject: Re: Collection of Michael Shaw  




Wulfenite - Red Cloud Mine, L paz County, Arizona.jpg
 Mineral: Wulfenite
 Locality:
Red Cloud Mine, Trigo Mountains, Silver District, La Paz County, Arizona, USA
 Dimensions: 8.0 x 4.5 x 2.5 cm, FOV = 5.5 cm
 Description:
Lustrous reddish-orange tabular wulfenite crystals to 1.1 cm. Collected in 1996.
 Viewed:  2723 Time(s)

Wulfenite - Red Cloud Mine, L paz County, Arizona.jpg


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PostPosted: Dec 27, 2023 10:58    Post subject: Re: Collection of Michael Shaw  




3000 Fluorite - Bergmannisch Gluck Mine, Frohnau, Saxony, Germany.jpg
 Mineral: Fluorite
 Locality:
Bergmännisch Glück Mine, Frohnau, Annaberg-Buchholz, Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany
 Dimensions: 11.9 x 7.1 x 4.0 cm
 Description:
Sharp cubic crystals of yellow fluorite to 1.7 cm with subtle purple color zoning covering the top surface of a light brown country rock matrix.
 Viewed:  2530 Time(s)

3000 Fluorite - Bergmannisch Gluck Mine, Frohnau, Saxony, Germany.jpg


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