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Don Lum Collection
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Don Lum




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PostPosted: Aug 11, 2014 17:52    Post subject: Re: Don Lum Collection  

Thank you, Michael and Jordi.

Regards,

Don

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Jordi Fabre
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PostPosted: Aug 12, 2014 03:23    Post subject: Re: Don Lum Collection  

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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PostPosted: Aug 13, 2014 22:45    Post subject: Re: Don Lum Collection  

Fluorite


IMG_3716.JPG
 Description:
Fluorite spinel-twin, Beryl, Hyalite Opal, Muscovite
Erongo Mountain, Erongo Region, Namibia
7 x 6 cm
ex Charlie Key
 Viewed:  17068 Time(s)

IMG_3716.JPG



IMG_3718.JPG
 Description:
Fluorite spinel-twin, Beryl, Hyalite Opal, Muscovite
Erongo Mountain, Erongo Region, Namibia
7 x 6 cm
ex Charlie Key
 Viewed:  17061 Time(s)

IMG_3718.JPG



IMG_3719.JPG
 Description:
Fluorite spinel-twin, Beryl, Hyalite Opal, Muscovite
Erongo Mountain, Erongo Region, Namibia
7 x 6 cm
ex Charlie Key
 Viewed:  17089 Time(s)

IMG_3719.JPG



IMG_3729.JPG
 Description:
Fluorite
Montgomery Pass, Mineral County, Nevada, USA
4.7 x 4.3 cm
 Viewed:  17085 Time(s)

IMG_3729.JPG



IMG_3732.JPG
 Description:
Fluorite
Montgomery Pass, Mineral County, Nevada, USA
4.7 x 4.3 cm
 Viewed:  17105 Time(s)

IMG_3732.JPG



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Don Lum




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PostPosted: Aug 14, 2014 21:33    Post subject: Re: Don Lum Collection  

Fluorite


IMG_3733.JPG
 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
 Viewed:  17016 Time(s)

IMG_3733.JPG



IMG_3735.JPG
 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
 Viewed:  17029 Time(s)

IMG_3735.JPG



IMG_3751.JPG
 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
 Viewed:  17009 Time(s)

IMG_3751.JPG



IMG_3753.JPG
 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
 Viewed:  17024 Time(s)

IMG_3753.JPG



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Don Lum




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PostPosted: Aug 15, 2014 13:24    Post subject: Re: Don Lum Collection  

Fluorite


IMG_3739.JPG
 Description:
Fluorite, Quartz
Berbes Mining area, Ribadesella, Asturias, Spain
4.9 x 4.0 cm
 Viewed:  16973 Time(s)

IMG_3739.JPG



IMG_3742.JPG
 Description:
Fluorite, Quartz
Berbes Mining area, Ribadesella, Asturias, Spain
4.9 x 4.0 cm
 Viewed:  16975 Time(s)

IMG_3742.JPG



IMG_3744.JPG
 Description:
Fluorite, Quartz
Berbes Mining area, Ribadesella, Asturias, Spain
4.9 x 4.0 cm
 Viewed:  16995 Time(s)

IMG_3744.JPG



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PostPosted: Sep 01, 2014 18:39    Post subject: Re: Don Lum Collection  

Herkimer Quartz


IMG_3757.JPG
 Mineral: Quartz
 Locality:
Herkimer County, New York, USA
 Dimensions: 15 x 11.5 cm
 Description:
 Viewed:  16786 Time(s)

IMG_3757.JPG



IMG_3755.JPG
 Mineral: Quartz
 Locality:
Herkimer County, New York, USA
 Dimensions: 15 x 11.5 cm
 Description:
 Viewed:  16803 Time(s)

IMG_3755.JPG



IMG_3760.JPG
 Mineral: Quartz
 Locality:
Herkimer County, New York, USA
 Dimensions: 10 x 9 cm
 Description:
 Viewed:  16777 Time(s)

IMG_3760.JPG



IMG_3765.JPG
 Mineral: Quartz
 Locality:
Herkimer County, New York, USA
 Dimensions: 10 x 9 cm
 Description:
 Viewed:  16786 Time(s)

IMG_3765.JPG



IMG_3761.JPG
 Mineral: Quartz
 Locality:
Herkimer County, New York, USA
 Dimensions: 10 x 9 cm
 Description:
 Viewed:  16778 Time(s)

IMG_3761.JPG



IMG_3806.JPG
 Mineral: Quartz
 Locality:
Herkimer County, New York, USA
 Dimensions: 11 x 11 x 6 cm
 Description:
 Viewed:  16798 Time(s)

IMG_3806.JPG



IMG_3807.JPG
 Mineral: Quartz
 Locality:
Herkimer County, New York, USA
 Dimensions: 11 x 11 x 6 cm
 Description:
 Viewed:  16807 Time(s)

IMG_3807.JPG



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Don Lum




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PostPosted: Sep 01, 2014 18:50    Post subject: Re: Don Lum Collection  

Almandine, Graphite


IMG_3815.JPG
 Mineral: Almandine, Graphite
 Locality:
Red Embers Mine, Erving, Franklin County, Massachusetts, USA
 Dimensions: 11.1 x 8 cm
 Description:
 Viewed:  16789 Time(s)

IMG_3815.JPG



IMG_3814.JPG
 Mineral: Almandine, Graphite
 Locality:
Red Embers Mine, Erving, Franklin County, Massachusetts, USA
 Dimensions: 11.1 x 8 cm
 Description:
with back light
 Viewed:  16802 Time(s)

IMG_3814.JPG



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Jamison Brizendine




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PostPosted: Sep 02, 2014 14:42    Post subject: Re: Don Lum Collection  

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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PostPosted: Sep 02, 2014 16:20    Post subject: Re: Don Lum Collection  

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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PostPosted: Sep 02, 2014 16:30    Post subject: Re: Don Lum Collection  

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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PostPosted: Sep 02, 2014 16:38    Post subject: Re: Don Lum Collection  

Don Lum wrote:
...I think that you are correct about the Fluorite IMG_3650. I agree with you that it looks like MInerva #1 or Annabel Lee...

Fixed: https://www.mineral-forum.com/message-board/viewtopic.php?p=40700#40700
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PostPosted: Sep 02, 2014 19:05    Post subject: Re: Don Lum Collection  

Jordi Fabre wrote:
Don Lum wrote:
...I think that you are correct about the Fluorite IMG_3650. I agree with you that it looks like MInerva #1 or Annabel Lee...

Fixed: https://www.mineral-forum.com/message-board/viewtopic.php?p=40700#40700


Thank you very much, Jordi.

Don

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PostPosted: Sep 02, 2014 19:21    Post subject: Re: Don Lum Collection  

crosstimber wrote:
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


Michael,

From what information I have, these dark Almandine crystals are found in blades of metallic gray graphite schist. It is new material from the Red Embers Mine in Erving, Franklin County, Massachusetts and introduced at the East Coast Gem and Mineral Show in Springfield, Massachusetts last month. The miners spent 5 years mining and preparing the specimens (sandblasting and isolating the crystals so that light would shine through). It takes a couple of hours to prepare each specimen. The mine was originally called the Sky Farm, then renamed the Two Fat Boys Claim and now being mined by the family team of Jason, Kevin and Kyle Baskin.

Regards,

Don

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PostPosted: Sep 02, 2014 19:47    Post subject: Re: Don Lum Collection  

Zanazziite


IMG_3809.JPG
 Mineral: Zanazziite, Albite, Tourmaline
 Locality:
Lavra Ponte do Piauí, Piauí Valley, Taquaral, Itinga, Jequitinhonha, Minas Gerais, Brazil
 Dimensions: 9.4 x 2.4 x 2.5 cm
 Description:
 Viewed:  16665 Time(s)

IMG_3809.JPG



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PostPosted: Sep 02, 2014 19:51    Post subject: Re: Don Lum Collection  

Don Lum wrote:
crosstimber wrote:
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


Michael,

From what information I have, these dark Almandine crystals are found in blades of metallic gray graphite schist. It is new material from the Red Embers Mine in Erving, Franklin County, Massachusetts and introduced at the East Coast Gem and Mineral Show in Springfield, Massachusetts last month. The miners spent 5 years mining and preparing the specimens (sandblasting and isolating the crystals so that light would shine through). It takes a couple of hours to prepare each specimen. The mine was originally called the Sky Farm, then renamed the Two Fat Boys Claim and now being mined by the family team of Jason, Kevin and Kyle Baskin.

Regards,

Don


Thanks for the info. As a native of Massachusetts, I'll have to keep my eyes open for these in Denver.
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PostPosted: Sep 03, 2014 01:37    Post subject: Re: Don Lum Collection  

Nice specimens Don! Best regards.
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PostPosted: Sep 03, 2014 09:29    Post subject: Re: Don Lum Collection  

Pierre Joubert wrote:
Nice specimens Don! Best regards.


Thank you, Pierre. Hi to Riana.

Best wishes,

Don

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PostPosted: Sep 05, 2014 14:11    Post subject: Re: Don Lum Collection  

Quartz from Guanajuato, Mexico. This specimen was identified for me by Dr. Peter Megaw last month in Dallas. I greatly appreciate his help.


1-IMG_3410.JPG
 Mineral: Quartz, Dolomite, Siderite
 Locality:
Municipio Guanajuato, Guanajuato, Mexico
 Dimensions: 19.5 x 15.5 cm
 Description:
 Viewed:  16394 Time(s)

1-IMG_3410.JPG



IMG_3411.JPG
 Mineral: Quartz, Dolomite, Siderite
 Locality:
Municipio Guanajuato, Guanajuato, Mexico
 Dimensions: 19.5 x 15.5 cm
 Description:
 Viewed:  16387 Time(s)

IMG_3411.JPG



IMG_3412.JPG
 Mineral: Quartz, Dolomite, Siderite
 Locality:
Municipio Guanajuato, Guanajuato, Mexico
 Dimensions: 19.5 x 15.5 cm
 Description:
 Viewed:  16406 Time(s)

IMG_3412.JPG



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PostPosted: Sep 06, 2014 13:41    Post subject: Re: Don Lum Collection  

Tsumeb


IMG_3774.JPG
 Mineral: Calcite, Malachite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 10.5 x 7.5 cm
 Description:
 Viewed:  16324 Time(s)

IMG_3774.JPG



IMG_3778.JPG
 Mineral: Calcite, Malachite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Description:
 Viewed:  16327 Time(s)

IMG_3778.JPG



IMG_3829.JPG
 Mineral: Cerussite, Mottramite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 4.5 x 3.5 x 3.5 cm
 Description:
ex Hans Luthi
 Viewed:  16309 Time(s)

IMG_3829.JPG



IMG_3832.JPG
 Mineral: Cerussite, Mottramite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 4.5 x 3.5 x 3.5 cm
 Description:
ex Hans Luthi
 Viewed:  16299 Time(s)

IMG_3832.JPG



IMG_3833.JPG
 Mineral: Cerussite, Mottramite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 4.5 x 3.5 x 3.5 cm
 Description:
ex Hans Luthi
 Viewed:  16347 Time(s)

IMG_3833.JPG



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PostPosted: Sep 06, 2014 13:54    Post subject: Re: Don Lum Collection  

Amazing specimens, especially the US Fluorites
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