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Don Lum Collection
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Don Lum




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PostPosted: Jul 25, 2014 17:16    Post subject: Re: Don Lum Collection  

GneissWare wrote:
Don, Nice Huanggang pieces.


Thank you very much, Bob.

Don

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PostPosted: Jul 26, 2014 10:34    Post subject: Re: Don Lum Collection  

Spanish Fluorite


IMG_3515.JPG
 Description:
Fluorite, Calcite
Llamas Quarry, Duyos, Obdulia vein, Caravia District, Caravia mining area, Asturias, Spain
11.2 x 5.9 x 4.7 cm
Cubic Fluorite crystals with very well developed dodecahedral bevels. The Fluorite crystals are colorless and extraordinarily transparent and bright and are on a Calcite matrix with scalenohedral crystals.
 Viewed:  18585 Time(s)

IMG_3515.JPG



IMG_3516.JPG
 Description:
Fluorite, Calcite
Llamas Quarry, Duyos, Obdulia vein, Caravia District, Caravia mining area, Asturias, Spain
11.2 x 5.9 x 4.7 cm
Cubic Fluorite crystals with very well developed dodecahedral bevels. The Fluorite crystals are colorless and extraordinarily transparent and bright and are on a Calcite matrix with scalenohedral crystals.
 Viewed:  18559 Time(s)

IMG_3516.JPG



IMG_3518.JPG
 Description:
Fluorite, Calcite
Llamas Quarry, Duyos, Obdulia vein, Caravia District, Caravia mining area, Asturias, Spain
11.2 x 5.9 x 4.7 cm
Cubic Fluorite crystals with very well developed dodecahedral bevels. The Fluorite crystals are colorless and extraordinarily transparent and bright and are on a Calcite matrix with scalenohedral crystals.
 Viewed:  18631 Time(s)

IMG_3518.JPG



IMG_3553.JPG
 Description:
Fluorite
La Viesca, Huergo, La Collada mining area, Siero, Asturias, Spain
8.2 x 8.0 cm
A cluster of richly saturated intense purple intergrown and equant fluorite cubes. The cubes are lustrous and translucent and exhibit thin modifying faces to the cubes and phantoms.
 Viewed:  18620 Time(s)

IMG_3553.JPG



IMG_3554.JPG
 Description:
Fluorite
Mine, Huergo, La Collada mining area, Siero, Asturias, Spain
8.2 x 8.0 cm
A cluster of richly saturated intense purple intergrown and equant fluorite cubes. The cubes are lustrous and translucent and exhibit thin modifying faces to the cubes and phantoms
 Viewed:  18606 Time(s)

IMG_3554.JPG



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Don Lum




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PostPosted: Jul 27, 2014 08:36    Post subject: Re: Don Lum Collection  

Collection


IMG_3525.JPG
 Description:
Calcite (variety cobaltoan calcite)
Mashamba West Mine, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)
6 x 5 cm
Purplish-pink scalenohedra of calcite with lustrous faces and gemmy terminations
 Viewed:  18502 Time(s)

IMG_3525.JPG



IMG_3530.JPG
 Description:
Calcite (variety cobaltoan calcite)
Mashamba West Mine, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)
6 x 5 cm
Purplish-pink scalenohedra of calcite with lustrous faces and gemmy terminations
 Viewed:  18511 Time(s)

IMG_3530.JPG



IMG_3560.JPG
 Description:
Inesite
N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa
10 x 4 cm
 Viewed:  18508 Time(s)

IMG_3560.JPG



IMG_3559.JPG
 Description:
Inesite
N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa
10 x 4 cm
 Viewed:  18513 Time(s)

IMG_3559.JPG



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Pierre Joubert




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PostPosted: Jul 27, 2014 09:18    Post subject: Re: Don Lum Collection  

Don Lum wrote:
Collection


Hi Don. Those inesites was at one time fairly abundant, but at the moment not easily obtained. Nice specimen.

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Don Lum




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PostPosted: Jul 27, 2014 13:50    Post subject: Re: Don Lum Collection  

Pierre Joubert wrote:
Don Lum wrote:
Collection


Hi Don. Those inesites was at one time fairly abundant, but at the moment not easily obtained. Nice specimen.


Thank you for your nice comment, Pierre. I am really enjoying your azurite on calcite and dioptase specimens. Beautiful !!!

Hi to Riana.

Best wishes,

Don

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PostPosted: Jul 28, 2014 16:03    Post subject: Re: Don Lum Collection  

Collection


IMG_3579.JPG
 Description:
Magnetite, Epidote
Marki Khel, Spin Ghar range (Speen Ghar range), Khogyani District, Nangarhar Province (Ningarhar Province), Afghanistan
7 x 6 cm
Magnetite crystals exhibiting octahedral forms with staggered epitaxial growths on the faces. The crystals have an intense metallic luster, deep black color, and very sharp faces and edges.
 Viewed:  18405 Time(s)

IMG_3579.JPG



IMG_3582.JPG
 Description:
Magnetite, Epidote
Marki Khel, Spin Ghar range (Speen Ghar range), Khogyani District, Nangarhar Province (Ningarhar Province), Afghanistan
7.0 x 6.0 cm
Magnetite crystals exhibiting octahedral forms with staggered epitaxial growths on the faces. The crystals have an intense metallic luster, deep black color, and very sharp faces and edges.
 Viewed:  18393 Time(s)

IMG_3582.JPG



IMG_3577.JPG
 Description:
Goethite
La Lapilla Mine, Alosno, Huelva, Andalusia, Spain
8.3 x 7.7 x 3.9 cm
ex Fermin Clemente
 Viewed:  18431 Time(s)

IMG_3577.JPG



IMG_3597.JPG
 Description:
Goethite
Filón Sur open pit (Filón Sur Mine), Tharsis Mines, Tharsis, Alosno, Huelva, Andalusia, Spain
4.4 x 2.1 cm
ex Fermin Clemente
Very aerial parallel columnar growths with strongly iridescent areas that have a dominant green color with red and blue on the tips and on the base.
 Viewed:  18408 Time(s)

IMG_3597.JPG



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PostPosted: Jul 31, 2014 15:00    Post subject: Re: Don Lum Collection  

Azurite


IMG_3602.JPG
 Description:
Azurite
Shilu Mine, Yangchun Co., Yangjiang Prefecture, Guangdong Province, China
7 x 6 cm
lustrous, sharp, deep blue tabular azurite "rose" cluster of crystals
 Viewed:  18349 Time(s)

IMG_3602.JPG



IMG_3611.JPG
 Description:
Azurite
Shilu Mine, Yangchun Co., Yangjiang Prefecture, Guangdong Province, China
7 x 6 cm
lustrous, sharp, deep blue tabular azurite "rose" cluster of crystals
 Viewed:  18382 Time(s)

IMG_3611.JPG



IMG_3617.JPG
 Description:
Azurite
Milpillas Mine, Cuitaca, Mun. de Santa Cruz, Sonora, Mexico
4.0 x 3.1 cm
 Viewed:  18371 Time(s)

IMG_3617.JPG



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Don Lum




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PostPosted: Aug 03, 2014 09:48    Post subject: Re: Don Lum Collection  

Rhodochrosite and fluorite from the Wutong Mine (Wudong Mine), Liubao, Cangwu Co., Wuzhou Prefecture, Guangxi Zhuang Autonomous Region, China


IMG_3641.JPG
 Description:
Fluorite, Rhodochrosite
Wutong Mine (Wudong Mine), Liubao, Cangwu Co., Wuzhou Prefecture, Guangxi Zhuang Autonomous Region, China
8.5 x 9.0 x 6.5 cm
 Viewed:  18239 Time(s)

IMG_3641.JPG



IMG_3642.JPG
 Description:
Fluorite, Rhodochrosite
Wutong Mine (Wudong Mine), Liubao, Cangwu Co., Wuzhou Prefecture, Guangxi Zhuang Autonomous Region, China
8.5 x 9.0 x 6.5 cm
 Viewed:  18255 Time(s)

IMG_3642.JPG



IMG_3536.JPG
 Description:
Fluorite, Rhodochrosite
Wutong Mine (Wudong Mine), Liubao, Cangwu Co., Wuzhou Prefecture, Guangxi Zhuang Autonomous Region, China
9 x 6 x 4 cm
 Viewed:  18212 Time(s)

IMG_3536.JPG



IMG_3541.JPG
 Description:
Fluorite, Rhodochrosite
Wutong Mine (Wudong Mine), Liubao, Cangwu Co., Wuzhou Prefecture, Guangxi Zhuang Autonomous Region, China
9 x 6 x 4 cm
 Viewed:  18213 Time(s)

IMG_3541.JPG



IMG_3544.JPG
 Description:
Fluorite, Rhodochrosite
Wutong Mine (Wudong Mine), Liubao, Cangwu Co., Wuzhou Prefecture, Guangxi Zhuang Autonomous Region, China
9 x 6 x 4 cm
 Viewed:  18240 Time(s)

IMG_3544.JPG



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PostPosted: Aug 05, 2014 13:34    Post subject: Re: Don Lum Collection  

Collection


IMG_3664.JPG
 Description:
Crocoite
Adelaide Mine (Adelaide Pty Mine; Adelaide Proprietary Mine), Dundas mineral field, Zeehan District, Tasmania, Australia
14 x 14 x 10.5 cm
 Viewed:  18148 Time(s)

IMG_3664.JPG



IMG_3686.JPG
 Description:
Galena, Dolomite
Big Bear Orebody, Fletcher Mine, Viburnum Trend District, Reynolds Co., Missouri, USA
22 x 17 cm
Spinel Law Twin Galena
 Viewed:  18097 Time(s)

IMG_3686.JPG



IMG_3676.JPG
 Description:
Galena, Dolomite
Big Bear Orebody, Fletcher Mine, Viburnum Trend District, Reynolds Co., Missouri, USA
22 x 17 cm
Spinel Law Twin Galena
 Viewed:  18125 Time(s)

IMG_3676.JPG



IMG_3677.JPG
 Description:
Galena, Dolomite
Big Bear Orebody, Fletcher Mine, Viburnum Trend District, Reynolds Co., Missouri, USA
22 x 17 cm
Spinel Law Twin Galena
 Viewed:  18134 Time(s)

IMG_3677.JPG



IMG_3683.JPG
 Description:
Galena, Dolomite
Big Bear Orebody, Fletcher Mine, Viburnum Trend District, Reynolds Co., Missouri, USA
22 x 17 cm
Spinel Law Twin Galena
 Viewed:  18143 Time(s)

IMG_3683.JPG



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PostPosted: Aug 07, 2014 13:53    Post subject: Re: Don Lum Collection  

Collection


IMG_3643.JPG
 Description:
Fluorite
Hunan Province, China
10 x 7 cm
 Viewed:  18114 Time(s)

IMG_3643.JPG



IMG_3650.JPG
 Description:
Fluorite, Calcite, Chalcopyrite
Illinois - Kentucky Fluorspar District, Hardin County, Illinois, USA
8 x 7 x 5 cm
 Viewed:  18094 Time(s)

IMG_3650.JPG



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PostPosted: Aug 08, 2014 02:38    Post subject: Re: Don Lum Collection  

Don Lum wrote:
Collection


Hi Don. Congratulations on acquiring the lovely specimens! I especially like the Crocoite and rhodocrosite/fluorite specimens. Very nice! Regards to Gwen.

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PostPosted: Aug 08, 2014 09:23    Post subject: Re: Don Lum Collection  

I see a new gold star in the group. Congratulations, Don.
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PostPosted: Aug 08, 2014 09:44    Post subject: Re: Don Lum Collection  

crosstimber wrote:
I see a new gold star in the group. Congratulations, Don.

Too slow ;-) I had not chance to say the first:

Congratulations to Don for his yellow star to achieve 100.000 reads in his thread!
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PostPosted: Aug 08, 2014 11:15    Post subject: Re: Don Lum Collection  

Pierre Joubert wrote:
Don Lum wrote:
Collection


Hi Don. Congratulations on acquiring the lovely specimens! I especially like the Crocoite and rhodocrosite/fluorite specimens. Very nice! Regards to Gwen.


Thank you, Pierre. Hi to Riana.

Regards,

Don

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PostPosted: Aug 08, 2014 11:18    Post subject: Re: Don Lum Collection  

Thank you Michael and Jordi for all your help. It has been a privilege to be part of The FMF and have the opportunity to participate.

Sincere regards,

Don

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PostPosted: Aug 10, 2014 17:44    Post subject: Re: Don Lum Collection  

Fluorite, Calcite


IMG_3688.JPG
 Description:
Fluorite, Calcite, Sphalerite
Annabel Lee mine, Harris Creek Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
17.6 x 13.5 cm
 Viewed:  17828 Time(s)

IMG_3688.JPG



IMG_3691.JPG
 Description:
Fluorite, Calcite, Sphalerite
Annabel Lee mine, Harris Creek Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
17.6 x 13.5 cm
 Viewed:  17851 Time(s)

IMG_3691.JPG



IMG_3692.JPG
 Description:
Fluorite, Calcite, Sphalerite
Annabel Lee mine, Harris Creek Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
17.6 x 13.5 cm
 Viewed:  17826 Time(s)

IMG_3692.JPG



IMG_3695.JPG
 Description:
Fluorite, Calcite, Sphalerite
Annabel Lee mine, Harris Creek Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
17.6 x 13.5 cm
 Viewed:  17813 Time(s)

IMG_3695.JPG



IMG_3697.JPG
 Description:
Fluorite, Calcite
Minerva No. 1 Mine (Ozark-Mahoning No. 1 Mine) Ozark-Mahoning Group, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
12.5 x 8.5 cm
 Viewed:  17827 Time(s)

IMG_3697.JPG



IMG_3700.JPG
 Description:
Fluorite, Calcite
Minerva No. 1 Mine (Ozark-Mahoning No. 1 Mine) Ozark-Mahoning Group, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
12.5 x 8.5 cm
 Viewed:  17816 Time(s)

IMG_3700.JPG



IMG_3702.JPG
 Description:
Fluorite, Calcite
Minerva No. 1 Mine (Ozark-Mahoning No. 1 Mine) Ozark-Mahoning Group, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
12.5 x 8.5 cm
 Viewed:  17827 Time(s)

IMG_3702.JPG



IMG_3708.JPG
 Description:
Fluorite, Calcite
Minerva No. 1 Mine (Ozark-Mahoning No. 1 Mine) Ozark-Mahoning Group, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
12.5 x 8.5 cm
 Viewed:  17837 Time(s)

IMG_3708.JPG



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PostPosted: Aug 11, 2014 13:34    Post subject: Re: Don Lum Collection  

China


IMG_3710.JPG
 Description:
Quartz, Chalcopyrite, Dolomite
Fengjiashan Mine (Daye copper mine), Daye Co., Huangshi Prefecture, Hubei Province, China
6.5 x 6.0 cm
 Viewed:  17801 Time(s)

IMG_3710.JPG



IMG_3713.JPG
 Description:
Sulfur coating stibnite
Xikuangshan Sb deposit, Lengshuijiang Co., Loudi Prefecture, Hunan Province, China
6.4 x 5.0 cm
 Viewed:  17791 Time(s)

IMG_3713.JPG



IMG_3714.JPG
 Description:
Sulfur coating stibnite
Xikuangshan Sb deposit, Lengshuijiang Co., Loudi Prefecture, Hunan Province, China
6 x 5.4 cm
 Viewed:  17794 Time(s)

IMG_3714.JPG



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PostPosted: Aug 11, 2014 14:56    Post subject: Re: Don Lum Collection  

Nice stibnites Don. There may well be some sulfur on these specimens, but I believe the coating on these stibnite crystals is an alteration product that is likely stibiconite, cervantite, or valentinite. See https://www.mindat.org/gallery.php?cform_is_valid=1&min=3776&loc=714&cf_pager_page=1
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PostPosted: Aug 11, 2014 16:00    Post subject: Re: Don Lum Collection  

crosstimber wrote:
There may well be some sulfur on these specimens, but I believe the coating on these stibnite crystals is an alteration product that is likely stibiconite, cervantite, or valentinite. See https://www.mindat.org/gallery.php?cform_is_valid=1&min=3776&loc=714&cf_pager_page=1

No Michael sorry. Please see: https://www.mineral-forum.com/message-board/viewtopic.php?p=26222#26222 and https://www.mineral-forum.com/message-board/viewtopic.php?p=27115#27115

You can see the analysis below:



Sulfur on Stibnite.jpg
 Description:
 Viewed:  17758 Time(s)

Sulfur on Stibnite.jpg


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PostPosted: Aug 11, 2014 17:22    Post subject: Re: Don Lum Collection  

Thanks for the link Jordi. There seems to be quite a lot of variation in the color and texture of the coatings, so I wonder if any of the other specimens have been analyzed. According to Mindat, all four minerals apparently occur as coatings on stibnite from this locality. I now suspect that each specimen must be analyzed to know for sure what the coating is.
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