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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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 Posted: Aug 10, 2014 17:44 Post subject: Re: Don Lum Collection |
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Fluorite, Calcite
| 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 |
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30402 Time(s) |
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| 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 |
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| Viewed: |
30429 Time(s) |
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| 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 |
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| Viewed: |
30421 Time(s) |
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| 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 |
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30384 Time(s) |
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| 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 |
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| Viewed: |
30394 Time(s) |
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| 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 |
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| Viewed: |
30400 Time(s) |
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| 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 |
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| Viewed: |
30387 Time(s) |
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| 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 |
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| Viewed: |
30394 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: Aug 11, 2014 13:34 Post subject: Re: Don Lum Collection |
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China
| Description: |
Quartz, Chalcopyrite, Dolomite
Fengjiashan Mine (Daye copper mine), Daye Co., Huangshi Prefecture, Hubei Province, China
6.5 x 6.0 cm |
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| Viewed: |
30386 Time(s) |
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| Description: |
Sulphur coating stibnite
Xikuangshan Sb deposit, Lengshuijiang Co., Loudi Prefecture, Hunan Province, China
6.4 x 5.0 cm |
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| Viewed: |
30383 Time(s) |
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| Description: |
Sulphur coating stibnite
Xikuangshan Sb deposit, Lengshuijiang Co., Loudi Prefecture, Hunan Province, China
6 x 5.4 cm |
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| Viewed: |
30379 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2252
Location: Oklahoma
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 5071
Location: Barcelona
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2252
Location: Oklahoma
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| Posted: Aug 11, 2014 17:22 Post subject: Re: Don Lum Collection |
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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.
Michael
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: Aug 11, 2014 17:52 Post subject: Re: Don Lum Collection |
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Thank you, Michael and Jordi.
Regards,
Don
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 5071
Location: Barcelona
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| Posted: Aug 12, 2014 03:23 Post subject: Re: Don Lum Collection |
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| crosstimber wrote: | | ...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... |
We analyzed some specimens from this mine and in any of them the yellowish and the brownish coat was Stibiconite. The late Joan Viñals at this time said to me that is more common than we suppose that the brown stuff coating Stibnites is not Stibiconite but Sulfur. With different colors, but Sulfur.
About Mindat, the photos downloaded there are "photos downloaded" by the users, it don't means that Mindat guarantees the Stibiconite in this mine is just that the Mindat's users believe this, and it is true that is a common error to believe that the brown material from this mine is Stibiconite. You will find also some other images in Mindat from the same mine but labeled as "Sulfur"...
Mindat is permanently correcting this kind of errors but is more easy to correct something clearly wrong than something doubtful like this. As you said it is a possibility that the Stibiconite be present in the Stibnites from this mine, but as far as I know and by our analysis, we don't found Stibiconite there (BTW, Roméite Group currently... ;-)
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: Aug 13, 2014 22:45 Post subject: Re: Don Lum Collection |
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Fluorite
| Description: |
Fluorite spinel-twin, Beryl, Hyalite Opal, Muscovite
Erongo Mountain, Erongo Region, Namibia
7 x 6 cm
ex Charlie Key |
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| Viewed: |
31578 Time(s) |
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| Description: |
Fluorite spinel-twin, Beryl, Hyalite Opal, Muscovite
Erongo Mountain, Erongo Region, Namibia
7 x 6 cm
ex Charlie Key |
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| Viewed: |
31509 Time(s) |
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| Description: |
Fluorite spinel-twin, Beryl, Hyalite Opal, Muscovite
Erongo Mountain, Erongo Region, Namibia
7 x 6 cm
ex Charlie Key |
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| Viewed: |
31606 Time(s) |
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| Description: |
Fluorite
Montgomery Pass, Mineral County, Nevada, USA
4.7 x 4.3 cm |
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| Viewed: |
31613 Time(s) |
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| Description: |
Fluorite
Montgomery Pass, Mineral County, Nevada, USA
4.7 x 4.3 cm |
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| Viewed: |
31595 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: Aug 14, 2014 21:33 Post subject: Re: Don Lum Collection |
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Fluorite
| Description: |
Fluorite, Bitumen
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
7 x 6.5 cm
Floater |
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| Viewed: |
31534 Time(s) |
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| Description: |
Fluorite, Bitumen
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
7 x 6.5 cm
Floater |
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| Viewed: |
31556 Time(s) |
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| Description: |
Fluorite, Calcite, Sphalerite
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
7.6 x 5.3 cm |
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| Viewed: |
31489 Time(s) |
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| Description: |
Fluorite, Calcite, Sphalerite
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
7.6 x 5.3 cm |
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| Viewed: |
31539 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: Aug 15, 2014 13:24 Post subject: Re: Don Lum Collection |
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Fluorite
| Description: |
Fluorite, Quartz
Berbes Mining area, Ribadesella, Asturias, Spain
4.9 x 4.0 cm |
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| Viewed: |
31472 Time(s) |
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| Description: |
Fluorite, Quartz
Berbes Mining area, Ribadesella, Asturias, Spain
4.9 x 4.0 cm |
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| Viewed: |
31484 Time(s) |
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| Description: |
Fluorite, Quartz
Berbes Mining area, Ribadesella, Asturias, Spain
4.9 x 4.0 cm |
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| Viewed: |
31490 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: Sep 01, 2014 18:39 Post subject: Re: Don Lum Collection |
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Herkimer Quartz
| Mineral: | Quartz |
| Locality: | | Herkimer County, New York, USA |  |
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| Dimensions: | 15 x 11.5 cm |
| Description: |
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| Viewed: |
31239 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Herkimer County, New York, USA | |
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| Dimensions: | 15 x 11.5 cm |
| Description: |
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| Viewed: |
31326 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Herkimer County, New York, USA | |
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| Dimensions: | 10 x 9 cm |
| Description: |
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| Viewed: |
31257 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Herkimer County, New York, USA | |
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| Dimensions: | 10 x 9 cm |
| Description: |
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| Viewed: |
31249 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Herkimer County, New York, USA | |
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| Dimensions: | 10 x 9 cm |
| Description: |
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| Viewed: |
31291 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Herkimer County, New York, USA | |
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| Dimensions: | 11 x 11 x 6 cm |
| Description: |
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| Viewed: |
31273 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Herkimer County, New York, USA | |
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| Dimensions: | 11 x 11 x 6 cm |
| Description: |
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| Viewed: |
31278 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: Sep 01, 2014 18:50 Post subject: Re: Don Lum Collection |
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Almandine, Graphite
| Mineral: | Almandine, Graphite |
| Locality: | | Red Embers Mine, Erving, Franklin County, Massachusetts, USA | |
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| Dimensions: | 11.1 x 8 cm |
| Description: |
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| Viewed: |
31292 Time(s) |
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| Mineral: | Almandine, Graphite |
| Locality: | | Red Embers Mine, Erving, Franklin County, Massachusetts, USA | |
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| Dimensions: | 11.1 x 8 cm |
| Description: |
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| Viewed: |
31360 Time(s) |
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Jamison Brizendine
Joined: 27 Feb 2014
Posts: 128
Location: Northeast Ohio
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| Posted: Sep 02, 2014 14:42 Post subject: Re: Don Lum Collection |
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Don,
What a cool picture of that almandine backlit (IMG_3814.JPG, page 29). I have also enjoyed the various specimens from Cave-in-Rock IL-KY Fluorspar District. I especially enjoyed the etched fluorite (IMG_3702.JPG, page 28) and the fluorite, calcite, sphalerite specimen (IMG_3695.JPG, page 28).
I also agree with Pierre about the beauty of the crocoite (IMG_3664.JPG, page 28) specimen and the combination fluorite and rhodochrosite (IMG_3536.JPG, page 28) specimen from China. Those are really nice examples of both specimens from those localities.
I am not sure that IMG_3650 (The Fluorite, calcite, chalcopyrite specimen, page 28) may be from the Hill-Ledford Mine. The fluorite specimens that I have typically seen from H-L are purple to very dark purple in color. I don’t think I have seen any specimens that are color zoned and/or are associated with chalcopyrite.
I have also seen Hill-Ledford fluorite specimens with what I call “domed sections”, that is fluorite crystallizing over earlier baryte (AM has an example of this kind of fluorite on his Mindat page). I am not sure what mine it could have originated from, but probably either Minerva #1 or the Annabel Lee Mine.
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: Sep 02, 2014 16:20 Post subject: Re: Don Lum Collection |
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| Jamison Brizendine wrote: | | ...I am not sure that IMG_3650 (The Fluorite, calcite, chalcopyrite specimen, page 28) may be from the Hill-Ledford Mine. The fluorite specimens that I have typically seen from H-L are purple to very dark purple in color. I don’t think I have seen any specimens that are color zoned and/or are associated with chalcopyrite... |
Hello Jamison,
Thank you for your kind comments on the specimens that I have posted.
I think that you are correct about the Fluorite IMG_3650. I agree with you that it looks like MInerva #1 or Annabel Lee. I have even posted fluorite specimens on FMF from Hill-Ledford that are purple. I will change my label. I have several specimens from older collections that are either not labelled at all or incorrectly labelled. I am making an attempt to correctly label these.
Don
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2252
Location: Oklahoma
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| Posted: Sep 02, 2014 16:30 Post subject: Re: Don Lum Collection |
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Don,
I echo Jamison's comment about the Red Embers Mine almandine specimen. Very neat piece. I'm not familiar with the locality - is it a relatively new piece?
Michael
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