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27 Nov-23:50:07 Re: collection of volkmar stingl (Volkmar Stingl)
27 Nov-17:43:53 Re: don lum collection (Don Lum)
27 Nov-16:55:08 Re: don lum collection (Don Lum)
27 Nov-14:37:49 Re: how hard is it to find a new mineral species? (Roger Warin)
27 Nov-10:00:30 Re: collection of michael shaw (Michael Shaw)
27 Nov-04:04:58 Re: minerals to be found in only one location (David)
27 Nov-03:55:29 Re: minerals to be found in only one location (David)
27 Nov-03:34:09 The mizunaka collection - quartz (Am Mizunaka)
27 Nov-01:38:48 Re: minerals to be found in only one location (Peter Lemkin)
26 Nov-20:22:40 Re: minerals to be found in only one location (Alfredo)
26 Nov-20:09:39 Re: minerals to be found in only one location (David)
26 Nov-19:59:36 Re: minerals to be found in only one location (David)
26 Nov-17:11:43 Re: how hard is it to find a new mineral species? (Jordi Fabre)
26 Nov-16:22:43 Re: minerals to be found in only one location (Romain M)
26 Nov-16:04:31 Minerals to be found in only one location (David)
26 Nov-15:28:25 Re: how hard is it to find a new mineral species? (David)
26 Nov-15:16:40 Re: how hard is it to find a new mineral species? (David)
26 Nov-10:15:40 Re: collection of volkmar stingl (Volkmar Stingl)
26 Nov-04:37:05 The mizunaka collection - rhodochrosite (Am Mizunaka)
25 Nov-09:44:09 Re: collection of michael shaw (Michael Shaw)
24 Nov-18:39:08 The mizunaka collection - eosphorite (Am Mizunaka)
24 Nov-16:59:55 Re: the mizunaka collection - rhodochrosite (Am Mizunaka)
24 Nov-16:16:01 Re: collection of firmo espinar (Firmo Espinar)
24 Nov-03:39:41 Re: the mizunaka collection (Tobi)
23 Nov-15:32:20 Re: a new mineral species: pendevilleite (Roger Warin)

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Collection of Michael Shaw
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Michael Shaw
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PostPosted: Nov 17, 2022 12:55    Post subject: Re: Collection of Michael Shaw  




1896 Calcite - Conco Mine, North Aurora, Kane Co., Illinois.jpg
 Mineral: Calcite
 Locality:
Conco Mine, North Aurora, Kane County, Illinois, USA
 Dimensions: 8.0 x 7.8 x 4.0 cm
 Description:
Grayish scalenohedral calcite crystals included with tiny marcasite crystals. Most of the crystal have sharp phantoms.
 Viewed:  733 Time(s)

1896 Calcite - Conco Mine, North Aurora, Kane Co., Illinois.jpg



1896 Calcite - Conco Mine, Illinois.jpg
 Mineral: Calcite
 Locality:
Conco Mine, North Aurora, Kane County, Illinois, USA
 Dimensions: 8.0 x 7.8 x 4.0 cm
 Description:
 Viewed:  733 Time(s)

1896 Calcite - Conco Mine, Illinois.jpg


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Michael Shaw
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PostPosted: Nov 18, 2022 08:19    Post subject: Re: Collection of Michael Shaw  




2875 Barite - Magma Mine, Superior, Pinal County, Arizona.jpg
 Mineral: Baryte
 Locality:
Magma Mine, Superior, Pioneer District, Pinal Mountains, Pinal County, Arizona, USA
 Dimensions: 3.5 x 2.8 x 1.8 cm
 Description:
Transparent to translucent, yellow barite crystals in an intergrown group of blocky crystals to 1.0 cm on edge.
 Viewed:  692 Time(s)

2875 Barite - Magma Mine, Superior, Pinal County, Arizona.jpg


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Tobi
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PostPosted: Nov 21, 2022 03:22    Post subject: Re: Collection of Michael Shaw  

An excellent baryte specimen with great aesthetics, Michael!
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Michael Shaw
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PostPosted: Nov 21, 2022 11:36    Post subject: Re: Collection of Michael Shaw  

Tobi wrote:
An excellent baryte specimen with great aesthetics, Michael!


Thank you, Tobi. It's a small specimen, but as I understand it, the larger crystals tended to be included with a variety of oxides and sulfides causing them to be various shades of brown to black.
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Michael Shaw
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PostPosted: Nov 21, 2022 11:49    Post subject: Re: Collection of Michael Shaw  




TN834 Andradite - Stanley Butte, Graham Co. Arizona.jpg
 Mineral: Andradite
 Locality:
Stanley Butte area, Stanley Butte, Stanley District, San Carlos Indian Reservation, Graham County, Arizona, USA
 Dimensions: 2.4 x 2.1 cm
 Description:
An intergrown group of green dodecahedral andradite crystals exhibiting slight iridescence.
 Viewed:  564 Time(s)

TN834 Andradite - Stanley Butte, Graham Co. Arizona.jpg


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Tobi
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PostPosted: Nov 22, 2022 09:32    Post subject: Re: Collection of Michael Shaw  

Michael Shaw wrote:
Tobi wrote:
An excellent baryte specimen with great aesthetics, Michael!
Thank you, Tobi. It's a small specimen, but as I understand it, the larger crystals tended to be included with a variety of oxides and sulfides causing them to be various shades of brown to black.
Thanks for the additional information. The crystals remind me of those from Châtel-Guyon in France, I once had a specimen from there which was very similiar to your piece from Magma Mine.

Regards
Tobi
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Michael Shaw
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PostPosted: Nov 22, 2022 14:39    Post subject: Re: Collection of Michael Shaw  

Tobi,

I wasn't familiar with The French location of Chatel-Guyon, so I looked it up on Mindat and yes, the crystals are remarkably similar in color and morphology. Thanks for pointing out this new (to me) location.

Regards,
Michael
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Michael Shaw
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PostPosted: Nov 23, 2022 10:39    Post subject: Re: Collection of Michael Shaw  

...


TN825 Quartz var. Pecos Diamond - DeBaca County, New Mexico.jpg
 Mineral: Quartz
 Locality:
De Baca County, New Mexico, USA
 Dimensions: 1.9 x 1.6 cm
 Description:
An opaque light brown Cumberland habit quartz crystal known locally as "Pecos Valley Diamonds."
 Viewed:  389 Time(s)

TN825 Quartz var. Pecos Diamond - DeBaca County, New Mexico.jpg


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James Catmur
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PostPosted: Nov 23, 2022 13:02    Post subject: Re: Collection of Michael Shaw  

There are few on FMF:

https://www.topminerals.info/index.php?searchterms=Ch%C3%A2tel&searchauthor=-&level=search

Michael Shaw wrote:
I wasn't familiar with The French location of Chatel-Guyon, so I looked it up on Mindat and yes, the crystals are remarkably similar in color and morphology. Thanks for pointing out this new (to me) location.
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Michael Shaw
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PostPosted: Nov 25, 2022 09:44    Post subject: Re: Collection of Michael Shaw  




2870 Olivenite - Majuba Hill Mine, Pershing County, Nevada.jpg
 Mineral: Olivenite
 Locality:
Majuba Hill Mine, Antelope District, Pershing County, Nevada, USA
 Dimensions: 5.5 x 3.2 x 2.0 cm
 Description:
Lustrous acicular olive-green olivenite crystals on an iron-rich matrix.
 Viewed:  255 Time(s)

2870 Olivenite - Majuba Hill Mine, Pershing County, Nevada.jpg


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Michael Shaw
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PostPosted: Nov 27, 2022 10:00    Post subject: Re: Collection of Michael Shaw  




2872 Mercury on Cinnabar - Almaden Mine, Almaden, Ciudad Real, Castile-La Mancha, Spain.jpg
 Mineral: Cinnabar with Mercury
 Locality:
Almaden Mine, Almadén, Comarca Valle de Alcudia, Ciudad Real, Castilla-La Mancha, Spain
 Dimensions: 6.5 x 4.0 x 1.9 cm
 Description:
Bright red massive cinnabar with small blebs of silvery native mercury smeared over the surface.
 Viewed:  45 Time(s)

2872 Mercury on Cinnabar - Almaden Mine, Almaden, Ciudad Real, Castile-La Mancha, Spain.jpg


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