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Don Lum Collection
  Goto page Previous  1, 2, 3, 4, 5 ... 78, 79, 80  Next
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Pierre Joubert




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PostPosted: Mar 02, 2013 03:36    Post subject: Re: Don Lum Collection  

Hi Don. I like the last Rhodo and also agree that the background is much better.
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Don Lum




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PostPosted: Mar 02, 2013 19:59    Post subject: Re: Don Lum Collection  

Pierre Joubert wrote:
Hi Don. I like the last Rhodo and also agree that the background is much better.


Thank you, Pierre.

Don

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PostPosted: Mar 02, 2013 20:15    Post subject: Re: Don Lum Collection  

Rhodochrosite


P1050481.JPG
 Description:
Rhodochrosite
Sweet Home Mine, Mount Bross, Alma District, Park County, Colorado, USA
5.5 x 4.5 x 3.4 cm
 Viewed:  24738 Time(s)

P1050481.JPG



P1050485.JPG
 Description:
Rhodochrosite
Sweet Home Mine, Mount Bross, Alma District, Park County, Colorado, USA
5.5 x 4.5 x 3.4 cm
 Viewed:  24776 Time(s)

P1050485.JPG



P1050476.JPG
 Description:
Rhodochrosite
Ushkatan III Deposit, Zhayrem Area, Kazakhstan
7.4 x 5.5 x 3.4 cm
Botryoidal Rhodochrosite
 Viewed:  24744 Time(s)

P1050476.JPG



P1050477.JPG
 Description:
Rhodochrosite
Ushkatan III Deposit, Zhayrem Area, Kazakhstan
7.4 x 5.5 x 3.4 cm
Botryoidal Rhodochrosite
 Viewed:  24791 Time(s)

P1050477.JPG



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Don Lum




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PostPosted: Mar 03, 2013 11:28    Post subject: Re: Don Lum Collection  

Rhodochrosite


P1050243.JPG
 Description:
Rhodochrosite, Fluorite, Chalcopyrite, Quartz
Guangxi, China
5.5 x 4.5 x 2.8 cm
 Viewed:  24706 Time(s)

P1050243.JPG



P1050486.JPG
 Description:
Rhodochrosite
Capillitas Mine, Catamarca, Argentina
5.3 x 4.0 x 3.2 cm (left), 5.3 x x 4.3 x 2.3 cm (right)
Rhodochrosite Stalactite
 Viewed:  24699 Time(s)

P1050486.JPG



P1050488.JPG
 Description:
Rhodochrosite
Capillitas Mine, Catamarca, Argentina
5.3 x 4.0 x 3.2 cm (left), 5.3 x x 4.3 x 2.3 cm (right)
Rhodochrosite Stalactite
 Viewed:  24721 Time(s)

P1050488.JPG



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PostPosted: Mar 04, 2013 23:16    Post subject: Re: Don Lum Collection  

Some Botyroidal and Ball Fluorites


P1050446.JPG
 Description:
Fluorite, Quartz
Mahodari Quarry, near Nasik, Maharashtra Province, India
11.2 x 7.7 x 1.2 cm

Red Fluorite Balls on Quartz
 Viewed:  24628 Time(s)

P1050446.JPG



P1050448.JPG
 Description:
Fluorite, Quartz
Mahodari Quarry, near Nasik, Maharashtra Province, India
11.2 x 7.7 x 1.2 cm

Red Fluorite Balls on Quartz
 Viewed:  24641 Time(s)

P1050448.JPG



P1050449.JPG
 Description:
Fluorite, Calcite
Mahodari Quarry, near Nasik, Maharashtra Province, India
8.4 x 6.9 x 4.3 cm

Yellow Fluorite Balls on Calcite
 Viewed:  24663 Time(s)

P1050449.JPG



P1050451.JPG
 Description:
Fluorite, Quartz
Nasik, Maharashtra Province, India
8.3 x 7.7 x 3.3 cm

Orange Fluorite Ball on Quartz
 Viewed:  24676 Time(s)

P1050451.JPG



P1050454.JPG
 Description:
Fluorite
Minggang, Xinyang, Henan Province, China
16 x 12.5 x 3.3 cm
 Viewed:  24683 Time(s)

P1050454.JPG



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Don Lum




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PostPosted: Mar 07, 2013 00:32    Post subject: Re: Don Lum Collection  

Some Botryroidal and Ball Fluorites


P1050460.JPG
 Description:
Fluorite
Wushan Mine, De'An Jiujang, Guangxi Province, China
15 x 11.6 x 7.3 cm
 Viewed:  24579 Time(s)

P1050460.JPG



P1050503.JPG
 Description:
Fluorite, Chalcedony
Nasik, Maharashtra Province, India
10.8 x 3.5 x 3.0 cm

Blue Fluorite Balls on Drusy Chalcedony
 Viewed:  24533 Time(s)

P1050503.JPG



P1050506.JPG
 Description:
Fluorite, Chalcedony
Nasik, Maharashtra Province, India
10.8 x 3.5 x 3.0 cm

Blue Fluorite Balls on Drusy Chalcedony
 Viewed:  24575 Time(s)

P1050506.JPG



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PostPosted: Mar 10, 2013 16:28    Post subject: Re: Don Lum Collection  

Botryoidal Fluorite


P1050513.JPG
 Description:
Fluorite
Minggang Fluorite Mine, Shihe District, Xinyang Prefecture, Henan Province, China
7.2 x 5.5 x 5.0 cm

Botryoidal Lilac Fluorite
 Viewed:  24423 Time(s)

P1050513.JPG



P1050514.JPG
 Description:
Fluorite
Minggang Fluorite Mine, Shihe District, Xinyang Prefecture, Henan Province, China
7.2 x 5.5 x 5.0 cm

Botryoidal Lilac Fluorite
 Viewed:  24447 Time(s)

P1050514.JPG



P1050508.JPG
 Description:
Fluorite
Minggang Fluorite Mine, Shihe District, Xinyang Prefecture, Henan Province, China
7.2 x 4.4 x 2.8 cm

Stalactitic Botryoidal Fluorite
 Viewed:  24468 Time(s)

P1050508.JPG



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PostPosted: Mar 14, 2013 14:30    Post subject: Re: Don Lum Collection  

Native Silver


P1050372.JPG
 Description:
Native Silver on Calcite
Kongsberg Silver Mining District, Flesberg, Buskerud, Norway
5.7 x 2.9 x 2.2 cm

"The Cobra"
 Viewed:  24336 Time(s)

P1050372.JPG



P1050359.JPG
 Description:
Silver Wire on Matrix
Lingqiu County, Shanxi Province, China
7.3 x 6.6 x 3.4 cm
 Viewed:  24327 Time(s)

P1050359.JPG



P1050361.JPG
 Description:
Silver Wire on Matrix
Lingqiu County, Shanxi Province, China
7.3 x 6.6 x 3.4 cm
 Viewed:  24359 Time(s)

P1050361.JPG



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PostPosted: Mar 16, 2013 16:48    Post subject: Re: Don Lum Collection  

Native Silver Wire


P1050373.JPG
 Description:
Silver Wire with Calcite
Kongsberg Silver Mining District, Flesberg, Buskerud, Norway
3.7 x 2.0 x 2.7 cm
 Viewed:  24225 Time(s)

P1050373.JPG



P1050378.JPG
 Description:
Silver Wire with Calcite
Kongsberg Silver Mining District, Flesberg, Buskerud, Norway
3.7 x 2.0 x 2.7 cm
 Viewed:  24263 Time(s)

P1050378.JPG



P1050382.JPG
 Description:
Silver Wire
Freiberg District, Saxony, Germany
4.2 x 2.3 x 1.0 cm

Native Silver Wire

ex-Lloyd Tate
 Viewed:  24283 Time(s)

P1050382.JPG



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PostPosted: Mar 17, 2013 12:33    Post subject: Re: Don Lum Collection  

Silver


P1050384.JPG
 Description:
Silver
Kongsberg Silver Mine, Kongsberg, Buskerud, Norway
11.5 x 7.3 x 3.8 cm

ex-Wolfgang Henkel
 Viewed:  24195 Time(s)

P1050384.JPG



P1050387.JPG
 Description:
Silver
Kongsberg Silver Mine, Kongsberg, Buskerud, Norway
11.5 x 7.3 x 3.8 cm

ex-Wolfgang Henkel
 Viewed:  24274 Time(s)

P1050387.JPG



P1050388.JPG
 Description:
Silver
Kongsberg Silver Mine, Kongsberg, Buskerud, Norway
11.5 x 7.3 x 3.8 cm
ex-Wolfgang Henkel
 Viewed:  24226 Time(s)

P1050388.JPG



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PostPosted: Mar 19, 2013 20:20    Post subject: Re: Don Lum Collection  

Native Elements


P1050389.JPG
 Description:
Silver wires with Acanthite
Imiter Mine, Ouarzazate Province, Morocco
4.7 x 3.6 x 2.9 cm
 Viewed:  24150 Time(s)

P1050389.JPG



P1050405.JPG
 Description:
Silver and Copper
Centennial Mine, Houghton, Michigan
6.3 x 4.1 x 3.2 cm

"Winged Victory"

ex-Carl Yagley
 Viewed:  24116 Time(s)

P1050405.JPG



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Jordi Fabre
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PostPosted: Mar 20, 2013 02:25    Post subject: Re: Don Lum Collection  

For https://www.mineral-forum.com/message-board/files/p1050389_148.jpg Don Lum wrote:
Silver wires with Acanthite
Imiter Mine, Ouarzazate Province, Morocco
4.7 x 3.6 x 2.9 cm

Don,

I suggest to you to read Wire Silvers from Imiter (Morocco)
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PostPosted: Mar 20, 2013 13:21    Post subject: Re: Don Lum Collection  

Jordi Fabre wrote:
For https://www.mineral-forum.com/message-board/files/p1050389_148.jpg Don Lum wrote:
Silver wires with Acanthite
Imiter Mine, Ouarzazate Province, Morocco
4.7 x 3.6 x 2.9 cm

Don,

I suggest to you to read Wire Silvers from Imiter (Morocco)

Dear Jordi,

I very much appreciate your suggestion and have read and reread every comment made regarding the fake silver from Morocco. When I buy a specimen from a dealer I always assume that it is legitimate. Sometimes I think that some dealers don't know when a specimen he has for sale is fake or real. This reinforces the principle that one should always buy from a reliable dealer. I also surmise that some dealers I have personally met at shows know less than I do about mineral specimens. I checked my specimen from Morocco as soon as I had the opportunity and looked for evidence of heating i.e. the brownish beige colors and bubbles as suggested by Joan. Quite honestly I still don't know if it is real or not. My gut feeling and I know those can be misleading is that it is real.

Ironically the next specimens I had intended to post were sulfurs from Sicily (noting Les' comments). This is in keeping with the native element theme.

I read John Veevaert's transcript of the interesting talk he gave on Fake Minerals at the Rocksaholics Symposium in Tucson this year. I discovered a manufactured/repaired/fake specimen soon thereafter by accident in my collection. If it would be of interest to any members of the Forum I will take pictures and post them this weekend.

Finally I would like to add that it seems that I am getting a lot more out of being a member of FMF than I am putting in.

Warm regards,

Don

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Mark Ost




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PostPosted: Mar 20, 2013 14:03    Post subject: Re: Don Lum Collection  

Don, these are wonderful sawn sections. For all the world they look like light diffaction patterns in physics.
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PostPosted: Mar 21, 2013 19:12    Post subject: Re: Don Lum Collection  

Silver, Quartz


IMG_0021.JPG
 Description:
Silver, Quartz
Kearsage Mine, Houghton County, Michigan
7.4 x 5.6 x 1.5 cm
 Viewed:  23929 Time(s)

IMG_0021.JPG



IMG_0023.JPG
 Description:
Silver, Quartz
Kearsage Mine, Houghton County, Michigan
7.4 x 5.6 x 1.5 cm
 Viewed:  23912 Time(s)

IMG_0023.JPG



IMG_0026.JPG
 Description:
Silver, Quartz
Kearsage Mine, Houghton County, Michigan
7.4 x 5.6 x 1.5 cm
 Viewed:  23973 Time(s)

IMG_0026.JPG



IMG_0025.JPG
 Description:
Silver, Quartz
Kearsage Mine, Houghton County, Michigan
7.4 x 5.6 x 1.5 cm
 Viewed:  23907 Time(s)

IMG_0025.JPG



Image23.jpg
 Description:
Silver, Quartz
Kearsage Mine, Houghton County, Michigan
7.4 x 5.6 x 1.5 cm
 Viewed:  23921 Time(s)

Image23.jpg



Image25.jpg
 Description:
Silver, Quartz
Kearsage Mine, Houghton County, Michigan
7.4 x 5.6 x 1.5 cm
 Viewed:  23958 Time(s)

Image25.jpg



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PostPosted: Mar 21, 2013 21:30    Post subject: Re: Don Lum Collection  

Red Fluorite


P1050432-001.JPG
 Description:
Fluorite. Pyrite
Riemvasmaak, South Africa
16.5 x 8.7 x 5.0 cm
 Viewed:  23954 Time(s)

P1050432-001.JPG



P1050441.JPG
 Description:
Fluorite. Pyrite
Riemvasmaak, South Africa
16.5 x 8.7 x 5.0 cm
 Viewed:  23902 Time(s)

P1050441.JPG



P1050444.JPG
 Description:
Fluorite. Pyrite
Riemvasmaak, South Africa
16.5 x 8.7 x 5.0 cm
 Viewed:  23899 Time(s)

P1050444.JPG



P1050445.JPG
 Description:
Fluorite. Pyrite
Riemvasmaak, South Africa
16.5 x 8.7 x 5.0 cm
 Viewed:  23927 Time(s)

P1050445.JPG



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PostPosted: Mar 22, 2013 00:23    Post subject: Re: Don Lum Collection  

Don Lum wrote:
Red Fluorite

Two possible causes of this brownish red color are noted.

Denver Show report - Mineral Dealer USA - Kristalle

Oct 1, 2009 – ... for the room is the new green Fluorites from Riemsvasmaak in South Africa, ... Green Fluorites from Riemvasmaak with other locality Fluorites .... starts as colourless or yellow, and turns pinkish to brownish red with sunlight.


Peter Lyckberg on mindat forum September 17, 2011

Yes, certainly some fluorite do change color with light exposure.

A giant fluorite pod in skarn (with some small molybdenite as a ring a few cm from its edge) had very strong purple color (some even reddish) at the 220 m level of the Yxsjöberg mine and changed color upon sun exposure with time.

This fluorite was exceptionally easy to give some energy immediately taken up by valence electrons (and yes some heat and sound....) and then gradually lost in the form of a yellowish-green visible light emitted, if beating on it with the sledge hammer.
(or shone at by the head light, or heated....)

The color changed during the years to a light sky blue to finally become white and specimens then looking close to quartz.
Yes fluorite is a fairly dense mineral.

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PostPosted: Mar 22, 2013 02:38    Post subject: Re: Don Lum Collection  

Don Lum wrote:
...Two possible causes of this brownish red color are noted....

Also here: Fluorite color centers from Elise Skalwold, and if you need more info just write "color centers" in the Forum's search:
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PostPosted: Mar 22, 2013 12:37    Post subject: Re: Don Lum Collection  

Jordi Fabre wrote:
Don Lum wrote:
...Two possible causes of this brownish red color are noted....

Also here: Fluorite color centers from Elise Skalwold, and if you need more info just write "color centers" in the Forum's search:

Thank you so much, Jordi.

Have a nice weekend.

Regards,

Don

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PostPosted: Mar 22, 2013 12:56    Post subject: Re: Don Lum Collection  

Silver


IMG_0027.JPG
 Description:
Silver
Imiter Mine, Boumalne-Dades, Ouarzazate Province, Souss-Massa-Draa Region, Morocco
10.5 x 7.1 x 3.7 cm
 Viewed:  23706 Time(s)

IMG_0027.JPG



IMG_0028.JPG
 Description:
Silver
Imiter Mine, Boumalne-Dades, Ouarzazate Province, Souss-Massa-Draa Region, Morocco
10.5 x 7.1 x 3.7 cm
 Viewed:  23713 Time(s)

IMG_0028.JPG



IMG_0029.JPG
 Description:
Silver
Imiter Mine, Boumalne-Dades, Ouarzazate Province, Souss-Massa-Draa Region, Morocco
10.5 x 7.1 x 3.7 cm
 Viewed:  23724 Time(s)

IMG_0029.JPG



IMG_0030.JPG
 Description:
Silver
Imiter Mine, Boumalne-Dades, Ouarzazate Province, Souss-Massa-Draa Region, Morocco
10.5 x 7.1 x 3.7 cm
 Viewed:  23730 Time(s)

IMG_0030.JPG



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