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06 Dec-22:41:50 Re: collection of volkmar stingl (Volkmar Stingl)
06 Dec-12:44:03 Re: collection of michael shaw (Michael Shaw)
06 Dec-01:43:16 Re: favourite mineral species/families? (Roger Warin)
05 Dec-10:05:40 Re: don lum collection (Don Lum)
05 Dec-08:40:26 Re: collection of firmo espinar (Firmo Espinar)
05 Dec-04:05:01 The mizunaka collection - smoky quartz (Am Mizunaka)
05 Dec-03:01:11 Re: don lum collection (Tobi)
04 Dec-17:14:12 Re: don lum collection (Don Lum)
04 Dec-12:01:14 Re: favourite mineral species/families? (Philippe Durand)
04 Dec-11:41:53 Re: favourite mineral species/families? (Bob Kerr)
04 Dec-11:05:35 Re: favourite mineral species/families? (Michael Shaw)
04 Dec-11:02:16 Re: collection of michael shaw (Michael Shaw)
04 Dec-03:42:22 Re: favourite mineral species/families? (Tobi)
04 Dec-01:01:59 Re: collection of volkmar stingl (Volkmar Stingl)
03 Dec-20:39:46 Re: help with locality (Michael Shaw)
03 Dec-17:37:31 The mizunaka collection - rhodochrosite (Am Mizunaka)
03 Dec-16:29:57 Re: help with locality (Bob Kerr)
03 Dec-16:12:41 Help with locality (Michael Shaw)
03 Dec-10:13:33 Re: collection of tobi (Tobi)
03 Dec-09:09:28 Re: collection of tobi (Tobi)
02 Dec-16:26:37 Re: new generation for picture - ploum (Ploum)
02 Dec-10:20:36 Re: collection of xiao-dong (James Catmur)
02 Dec-09:44:52 Re: collection of michael shaw (Michael Shaw)
02 Dec-09:18:51 Re: collection of xiao-dong (Xdxucn)
02 Dec-05:29:03 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 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:  1275 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:  1275 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:  1233 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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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:  1106 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:  931 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:  795 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:  585 Time(s)

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


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PostPosted: Nov 29, 2022 09:44    Post subject: Re: Collection of Michael Shaw  




2859 Galena - Cadjebut Mine, Fitzroy Crossing, Western Australia, Australia.jpg
 Mineral: Galena
 Locality:
Cadjebut Mine, Fitzroy Crossing, Derby-West Kimberley Shire, Western Australia, Australia
 Dimensions: 6.5 x 4.0 x 3.2 cm
 Description:
Galena crystals to 1.0 cm with cuboctahedral and stepped cubic growth covering the top of a sulfide matrix with minor colorless calcite crystals.
 Viewed:  477 Time(s)

2859 Galena - Cadjebut Mine, Fitzroy Crossing, Western Australia, Australia.jpg


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PostPosted: Dec 02, 2022 09:44    Post subject: Re: Collection of Michael Shaw  




2873 Chalcedony - Mopah Spring, Turtle Mountain Wilderness, San Bernadino County, California.jpg
 Mineral: Quartz (variety chalcedony)
 Locality:
Mopah Spring, Turtle Mountain Wilderness, San Bernardino County, California, USA
 Dimensions: 5.2 x 3.9 x 2.1 cm
 Description:
A pale pink chalcedony rose that displays green fluorescence under short wave UV.
 Viewed:  315 Time(s)

2873 Chalcedony - Mopah Spring, Turtle Mountain Wilderness, San Bernadino County, California.jpg


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PostPosted: Dec 04, 2022 11:02    Post subject: Re: Collection of Michael Shaw  

I first became aware of these Newfoundland amethyst specimens at the 2020 Tucson Show. After looking through hundreds of specimens I was unable to find an undamaged piece. I'm told this was because the deposit was mined with mechanical equipment resulting in specimens with quite a lot of damage. I forgot about these until I spied a couple of flats at the 2022 Denver Show. To my surprise, most of the pieces were damage free, so I had a second chance to select a few for the collection.


2862 Quartz var. amethyst - La Manche Mine, Avalon Peninsula, Newfoundland, Canada.jpg
 Mineral: Quartz (variety amethyst)
 Locality:
La Manche, Placentia Bay, Newfoundland (Island), Newfoundland and Labrador, Canada
 Dimensions: 8.3 x 6.5 x 5.0 cm
 Description:
Tightly intergrown amethyst crystals showing mostly just the pyramidal terminations.
 Viewed:  213 Time(s)

2862 Quartz var. amethyst - La Manche Mine, Avalon Peninsula, Newfoundland, Canada.jpg



Quartz var. amethyst - La Manche Mine, Placentia Bay, Newfoundland, Canada.jpg
 Mineral: Quartz (variety amethyst)
 Locality:
La Manche, Placentia Bay, Newfoundland (Island), Newfoundland and Labrador, Canada
 Dimensions: 6.0 x 4.5 x 4.0 cm
 Description:
 Viewed:  213 Time(s)

Quartz var. amethyst - La Manche Mine, Placentia Bay, Newfoundland, Canada.jpg


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PostPosted: Dec 06, 2022 12:44    Post subject: Re: Collection of Michael Shaw  




2885 Gypsum - Lily Mine, Humay District, Pisco Prov., Ica Dept., Peru.jpg
 Mineral: Gypsum
 Locality:
Lily Mine, Umay District, Pisco Province, Ica Department, Peru
 Dimensions: 9.2 x 7.6 x 4.6 cm
 Description:
Sharp lustrous water-clear crystals of gypsum var. selenite to 5.1 cm across forming an intergrown group.
 Viewed:  130 Time(s)

2885 Gypsum - Lily Mine, Humay District, Pisco Prov., Ica Dept., Peru.jpg


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