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28 Mar-09:37:50 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Cfrench58)
27 Mar-19:47:08 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Pete Richards)
27 Mar-16:15:44 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Cfrench58)
27 Mar-15:18:59 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Alfredo)
27 Mar-14:39:29 2 unknowns co-occurring with caledonite, grand reef mine, az (Cfrench58)
27 Mar-05:21:48 Re: the mim museum in beirut, lebanon (Mim Museum)
27 Mar-05:03:26 Re: trying to find information on rose/pink quartz and tourmaline associations. (Ning)
27 Mar-02:39:50 Re: the mim museum in beirut, lebanon (Tobi)
27 Mar-00:23:28 Re: collection of volkmar stingl (Volkmar Stingl)
26 Mar-00:53:41 Re: collection of volkmar stingl (Volkmar Stingl)
25 Mar-13:32:10 Re: collection of michael shaw (Michael Shaw)
25 Mar-00:25:58 The mizunaka collection - quartz (Am Mizunaka)
23 Mar-13:35:22 Re: collection of firmo espinar (Firmo Espinar)
22 Mar-08:32:28 Re: collection of michael shaw (Michael Shaw)
22 Mar-04:20:41 Re: the mim museum in beirut, lebanon (Mim Museum)
21 Mar-22:49:19 Re: green seam. Looks like it in a state of decay. (Ning)
21 Mar-22:47:40 Re: green seam. Looks like it in a state of decay. (Ning)
21 Mar-22:45:25 Re: green seam. Looks like it in a state of decay. (Ning)
21 Mar-15:34:23 Re: the mizunaka collection - quartz (Am Mizunaka)
21 Mar-14:35:08 Re: jim’s mineral collection (Jim Wilkinson)
21 Mar-14:15:36 The 4th phoenix heritage mineral show (phms) hosted by mineralogical society of arizona (m (Chris Whitney-smith)
21 Mar-04:36:10 Re: the mizunaka collection (Tobi)
21 Mar-04:11:47 Re: jim’s mineral collection (James Catmur)
20 Mar-23:34:15 The mizunaka collection - quartz (Am Mizunaka)
20 Mar-18:13:16 Re: jim’s mineral collection (Jim Wilkinson)

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Collection of Michael Shaw
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Tobi
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PostPosted: Oct 07, 2018 03:58    Post subject: Re: Collection of Michael Shaw  

crosstimber wrote:
Quartz (variety smoky) and Microcline
Government Pit, Albany, Carroll County, New Hampshire, USA
Dimensions: 2.7 x 4.6 x 7.8 cm
Several transparent smoky quartz crystals associated with creamy microcline crystals and bladed white albite var. cleavelandite.
What a beauty, Michael! The overall shape, the contrast, the quality of the quartzes, just beautiful :-)
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Michael Shaw
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PostPosted: Oct 07, 2018 10:09    Post subject: Re: Collection of Michael Shaw  

Tobi wrote:
crosstimber wrote:
Quartz (variety smoky) and Microcline
Government Pit, Albany, Carroll County, New Hampshire, USA
Dimensions: 2.7 x 4.6 x 7.8 cm
Several transparent smoky quartz crystals associated with creamy microcline crystals and bladed white albite var. cleavelandite.
What a beauty, Michael! The overall shape, the contrast, the quality of the quartzes, just beautiful :-)


Thanks Tobi. I was very happy to have the opportunity to acquire these two pieces.
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PostPosted: Oct 08, 2018 09:54    Post subject: Re: Collection of Michael Shaw  




2583 Marcasite - Linwood Mine, Buffalo, Scott Co., Iowa.jpg
 Mineral: Marcasite
 Locality:
Linwood Mine, Buffalo, Scott County, Iowa, USA
 Dimensions: 3.0 x 4.1 cm
 Description:
Metallic, brass-yellow spear-shaped marcasite crystals to 3.2 cm with small colorless calcite crystals.
 Viewed:  14656 Time(s)

2583 Marcasite - Linwood Mine, Buffalo, Scott Co., Iowa.jpg


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vic rzonca




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PostPosted: Oct 08, 2018 10:16    Post subject: Re: Collection of Michael Shaw  

crosstimber wrote:
These pieces were collected by Ernie Schlichter, who collected there often.


Ernie was a very serious field collector. Where the pry bars and the misc. steel that we lug into the field can be quite heavy, Ernie had the good sense to have his kit made from titanium.
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PostPosted: Oct 11, 2018 15:34    Post subject: Re: Collection of Michael Shaw  




2578 Rhodocrosite - Champion Mine, Cinnamon Pass, Lake City, Hinsdale Co., Colorado.jpg
 Mineral: Rhodochrosite
 Locality:
Champion Mine, Cinnamon Pass, Lake City, Hinsdale County, Colorado, USA
 Dimensions: 3.0 x 4.8 cm.
 Description:
Pink rhombs of rhodocrosite to 5 mm covering a pyrite and quartz matrix.
 Viewed:  14501 Time(s)

2578 Rhodocrosite - Champion Mine, Cinnamon Pass, Lake City, Hinsdale Co., Colorado.jpg


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Michael Shaw
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PostPosted: Oct 15, 2018 09:12    Post subject: Re: Collection of Michael Shaw  




TN706 Silver - Fresnillo, Zacatecas, Mexico.jpg
 Mineral: Silver
 Locality:
Fresnillo de González Echeverría (Fresnillo), Municipio Fresnillo, Zacatecas, Mexico
 Dimensions: 1.0 x 2.1 cm
 Description:
 Viewed:  14436 Time(s)

TN706 Silver - Fresnillo, Zacatecas, Mexico.jpg


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Tobi
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PostPosted: Oct 15, 2018 09:31    Post subject: Re: Collection of Michael Shaw  

crosstimber wrote:
Rhodochrosite
Champion Mine, Cinnamon Pass, Lake City, Hinsdale County, Colorado, USA
Pink rhombs of rhodocrosite to 5 mm covering a pyrite and quartz matrix.
Lovely little specimen, Michael!
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Michael Shaw
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PostPosted: Oct 18, 2018 09:30    Post subject: Re: Collection of Michael Shaw  




TN732 Fluorite - Yongchun Co., Quanzhou Pref., Fujian Province, China.jpg
 Mineral: Fluorite
 Locality:
Yongchun, Quanzhou Prefecture, Fujian Province, China
 Dimensions: 2.1 x 2.9 cm
 Description:
Cubic fluorite with well-developed decahedral modifications associated with transparent quartz crystals.
 Viewed:  14338 Time(s)

TN732 Fluorite - Yongchun Co., Quanzhou Pref., Fujian Province, China.jpg


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Fiebre Verde




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PostPosted: Oct 18, 2018 09:55    Post subject: Re: Collection of Michael Shaw  

crosstimber wrote:
Cubic fluorite with well-developed decahedral modifications associated with transparent quartz crystals.

That's a stunning combination Michael!
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Michael Shaw
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PostPosted: Oct 18, 2018 11:36    Post subject: Re: Collection of Michael Shaw  

Fiebre Verde wrote:
crosstimber wrote:
Cubic fluorite with well-developed decahedral modifications associated with transparent quartz crystals.

That's a stunning combination Michael!


Thanks Gérard. I was very pleased to find this thumbnail piece. It is perfect and has pretty good aesthetics. The big ones were priced out of this world!
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James Catmur
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PostPosted: Oct 18, 2018 13:49    Post subject: Re: Collection of Michael Shaw  

Wonderful
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PostPosted: Oct 24, 2018 09:24    Post subject: Re: Collection of Michael Shaw  

Thanks James. Here's a fluorite a little closer to your neck of the woods :>)


2585 Fluorite - Greenlaws Mine, Daddry Shield, Co. Durham, England.jpg
 Mineral: Fluorite
 Locality:
Greenlaws Mine, Daddry Shield, Weardale, North Pennines Orefield, County Durham, England / United Kingdom
 Dimensions: 5.6 x 9.7 x 12.7 cm
 Description:
An intergrown group of glassy to frosted purple fluorite crystals to 3.5 cm on edge. Collected in 2018.
 Viewed:  14290 Time(s)

2585 Fluorite - Greenlaws Mine, Daddry Shield, Co. Durham, England.jpg


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Michael Shaw
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PostPosted: Oct 25, 2018 09:10    Post subject: Re: Collection of Michael Shaw  

Probably like many collectors, I have several pieces in my collection that would benefit from trimming excess matrix, broken crystals from the periphery, etc. I do not usually attempt to do this myself as I do not have the proper equipment. The specimen shown below is an exception - I have had it for a couple of years and it was relatively inexpensive, so I decided to take on the task yesterday. I was quite pleased with the result. I should have taken a photo of the specimen before trimming.


Calcite - Manaoshan Mine, Chenzhou Pref., Hunan Prov., China.jpg
 Mineral: Calcite
 Locality:
Manaoshan Mine, Dongpo, Yizhang District, Chenzhou Prefecture, Hunan Province, China
 Dimensions: 7.8 x 7.9 x 9.1 cm
 Description:
A second generation of opaque pale gray calcite crystals to 3.2 cm growing on white scalenohedral calcites with flesh-colored dolomite crystals on a gray limestone matrix.
 Viewed:  14080 Time(s)

Calcite - Manaoshan Mine, Chenzhou Pref., Hunan Prov., China.jpg


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PostPosted: Oct 26, 2018 10:54    Post subject: Re: Collection of Michael Shaw  




2558 Calcite - Carmen Mine, Santa Eulalia, Chihuahua, Mexico.jpg
 Mineral: Calcite
 Locality:
Carmen Mine (El Carmen Mine), West Camp, Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua, Mexico
 Dimensions: 5.8 x 6.2 x 10.6 cm
 Description:
Chocolate-brown scalenohedral calcite crystals to 5.5 cm in length. Small transparent quartz crystals are scattered over the calcites and the tips are coated with microcrystals of purple fluorite.
 Viewed:  14025 Time(s)

2558 Calcite - Carmen Mine, Santa Eulalia, Chihuahua, Mexico.jpg


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PostPosted: Oct 28, 2018 04:45    Post subject: Re: Collection of Michael Shaw  

crosstimber wrote:
Fluorite
Greenlaws Mine, Daddry Shield, Weardale, North Pennines Orefield, County Durham, England, United Kingdom
5.6 x 9.7 x 12.7 cm
Description: An intergrown group of glassy to frosted purple fluorite crystals to 3.5 cm on edge. Collected in 2018.
I love it!!! :-)
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PostPosted: Oct 29, 2018 08:27    Post subject: Re: Collection of Michael Shaw  

Thanks Tobi, Here's another piece from the same mine.


2462 Fluorite - Greenlaw's Mine, County Durham, England.jpg
 Mineral: Fluorite
 Locality:
Greenlaws Mine, Daddry Shield, Weardale, North Pennines Orefield, County Durham, England / United Kingdom
 Dimensions: 4. 1 x 7.1 x 7.9 cm
 Description:
Both of these pieces exhibit strong blue/purple fluorescence under LW UV light.
 Viewed:  13885 Time(s)

2462 Fluorite - Greenlaw's Mine, County Durham, England.jpg


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PostPosted: Oct 31, 2018 14:53    Post subject: Re: Collection of Michael Shaw  




2564 Barite - Sherman Tunnel, Leadville, Colorado.jpg
 Mineral: Baryte
 Locality:
Sherman Mine, Upper Iowa Gulch, Leadville District, Lake County, Colorado, USA
 Dimensions: 1.4 x 4.1 x 5.4 cm
 Description:
A thin plate covered on both sides with semi-lustrous chisel-shaped golden-yellow barite crystals to 1.3 cm on edge.
 Viewed:  13792 Time(s)

2564 Barite - Sherman Tunnel, Leadville, Colorado.jpg


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Tobi
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PostPosted: Nov 02, 2018 03:26    Post subject: Re: Collection of Michael Shaw  

crosstimber wrote:
Probably like many collectors, I have several pieces in my collection that would benefit from trimming excess matrix, broken crystals from the periphery, etc. I do not usually attempt to do this myself as I do not have the proper equipment. The specimen shown below is an exception - I have had it for a couple of years and it was relatively inexpensive, so I decided to take on the task yesterday. I was quite pleased with the result. I should have taken a photo of the specimen before trimming.

( https://www.mineral-forum.com/message-board/viewtopic.php?p=64516#64516 )

It looks perfect, you did a good job!
And yes, I know the "trimming dilemma". I also don't have the proper equipment, so the more expensive a specimen is, the more I hesitate to work on it. Most of us will know from sad experiences that the biggest crack often occurs in the wrong area of a specimen and that it's often the best crystal that falls off first :-(
I would never dare to trim valuable specimens by myself, but like you did it with that calcite, I sometimes work on specimens that would not make me hate myself too much when something goes wrong ... And as I said before, you did a perfect job on this one :-)
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PostPosted: Nov 02, 2018 09:56    Post subject: Re: Collection of Michael Shaw  

Thanks Tobi, the volume of matrix that was removed was about equal to what is remains on the specimen currently. The trimmed off portion had a few nice but small calcite crystals on the dolomite, but it distracted from the dominant crystals. There is no better feeling than to have everything go according to plan when you undertake this kind of task :>)
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PostPosted: Nov 09, 2018 09:44    Post subject: Re: Collection of Michael Shaw  




2559 - Calcite Santa Eulalia, Chihuahua, Mexico.jpg
 Mineral: Calcite
 Locality:
Santa Eulalia District, Municipio Aquiles Serdán, Chihuahua, Mexico
 Dimensions: 5.2 x 8.1 x 9.1 cm
 Description:
A mounded group of chocolate-brown dogtooth calcites to 2.0 cm.
 Viewed:  13507 Time(s)

2559 - Calcite Santa Eulalia, Chihuahua, Mexico.jpg


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