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Don Lum Collection
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Don Lum




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PostPosted: Aug 08, 2017 11:08    Post subject: Re: Don Lum Collection  

Pierre Joubert wrote:
'I am fortunate to have it.' What a nice way to see things Don! I agree with Heimo, it is a lovely specimen:-)


Thank you for your compliment, Pierre.

Hello to Riana.

Regards,

Don

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PostPosted: Aug 08, 2017 20:06    Post subject: Re: Don Lum Collection  

Oppu Mine


IMG_7512.JPG
 Mineral: Rhodochrosite, Quartz, Pyrite
 Locality:
Oppu Mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori Prefecture, Tohoku Region, Honshu Island, Japan
 Dimensions: 115 mm x 100 mm x 50 mm
 Description:
 Viewed:  2580 Time(s)

IMG_7512.JPG



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Don Lum




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PostPosted: Aug 08, 2017 20:15    Post subject: Re: Don Lum Collection  

Namibia


P7011110.JPG
 Mineral: Quartz (variety amethyst, variety smoky)
 Locality:
Brandberg area, Erongo Region, Namibia
 Dimensions: 60 mm x 28 mm x 27 mm
 Description:
double terminated crystal
 Viewed:  2561 Time(s)

P7011110.JPG



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Tobi




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PostPosted: Aug 09, 2017 12:35    Post subject: Re: Don Lum Collection  

Great Oppu Mine rhodo, Don!
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Don Lum




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PostPosted: Aug 09, 2017 12:54    Post subject: Re: Don Lum Collection  

Tobi wrote:
Great Oppu Mine rhodo, Don!


Thank you very much, Tobi. I am glad that you like it.

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PostPosted: Aug 10, 2017 15:38    Post subject: Re: Don Lum Collection  

Azurite, Malachite


IMG_7408.JPG
 Mineral: Azurite, Malachite
 Locality:
Bou Bekker, Touissit District, Jerada Province, Oriental Region, Morocco
 Dimensions: 82 mm x 58 mm x 23 mm
 Description:
 Viewed:  2363 Time(s)

IMG_7408.JPG



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PostPosted: Aug 11, 2017 17:37    Post subject: Re: Don Lum Collection  

Mexico


IMG_7515.JPG
 Mineral: Malachite after Azurite, Goethite
 Locality:
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora, Mexico
 Dimensions: 15 cm x 12 cm x 9 cm
 Description:
09/10/2014
 Viewed:  2311 Time(s)

IMG_7515.JPG



P8111322.JPG
 Mineral: Malachite after Azurite, Goethite
 Locality:
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora, Mexico
 Dimensions: 15 cm x 12 cm x 9 cm
 Description:
09/10/2014
 Viewed:  2314 Time(s)

P8111322.JPG



P8111324.JPG
 Mineral: Malachite after Azurite, Goethite
 Locality:
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora, Mexico
 Dimensions: 15 cm x 12 cm x 9 cm
 Description:
09/10/2014
 Viewed:  2309 Time(s)

P8111324.JPG



P8111326.JPG
 Mineral: Malachite after Azurite, Goethite
 Locality:
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora, Mexico
 Dimensions: 15 cm x 12 cm x 9 cm
 Description:
09/10/2014
 Viewed:  2311 Time(s)

P8111326.JPG



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Philippe Durand




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PostPosted: Aug 12, 2017 14:19    Post subject: Re: Don Lum Collection  

it is the first time that I see this association.
every day , something new to learn
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Don Lum




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PostPosted: Aug 12, 2017 14:53    Post subject: Re: Don Lum Collection  

Philippe Durand wrote:
it is the first time that I see this association.
every day , something new to learn


Thank you for your comment, Philippe. Acquired last year from Jordi.

Regards,

Don

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PostPosted: Aug 14, 2017 17:34    Post subject: Re: Don Lum Collection  

Analcime


P8011295.JPG
 Mineral: Analcime
 Locality:
Moalleman area, Qohab-e Rastaq, Amirabad District, Damghan, Semnan Province, Iran
 Dimensions: 55 mm x 51 mm x 22 mm
 Description:
Jordi's description: A novelty at Sainte Marie-aux-Mines 2017. A group, on rocky matrix, of bright trapezohedral Analcime crystals that have very well defined faces and edges and a very intense uniform red color.
 Viewed:  2148 Time(s)

P8011295.JPG



P8011299.JPG
 Mineral: Analcime
 Locality:
Moalleman area, Qohab-e Rastaq, Amirabad District, Damghan, Semnan Province, Iran
 Dimensions: 55 mm x 51 mm x 22 mm
 Description:
Jordi's description: A novelty at Sainte Marie-aux-Mines 2017. A group, on rocky matrix, of bright trapezohedral Analcime crystals that have very well defined faces and edges and a very intense uniform red color.
 Viewed:  2146 Time(s)

P8011299.JPG



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PostPosted: Aug 15, 2017 22:38    Post subject: Re: Don Lum Collection  

Chrysocolla


IMG_7520.JPG
 Mineral: Chrysocolla with Malachite
 Locality:
Luputo, Kakumba, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire)
 Dimensions: 55 mm x 41 mm x 23 mm
 Description:
 Viewed:  2069 Time(s)

IMG_7520.JPG



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Jordi Fabre
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PostPosted: Aug 16, 2017 02:40    Post subject: Re: Don Lum Collection  

In http://www.mineral-forum.com/message-board/viewtopic.php?p=58390#58390 Don Lum wrote:
Mineral: Ajoite after Azurite after Malachite
Locality: Luputo, Kakumba, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire)
Dimensions: 55 mm x 41 mm x 23 mm

Sorry Don, I'm afraid is Chrysocolla. I did the corresponding analysis of these samples and even spoke with representatives of the University of Arizona from where theoretically came the classification as "Ajoite", and is not Ajoite but Chrysocolla.

You can find more info in this Mindat's thread: https://www.mindat.org/mesg-11-377662.html
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PostPosted: Aug 16, 2017 08:41    Post subject: Re: Don Lum Collection  

Jordi Fabre wrote:
In http://www.mineral-forum.com/message-board/viewtopic.php?p=58390#58390 Don Lum wrote:
Mineral: Ajoite after Azurite after Malachite
Locality: Luputo, Kakumba, Katanga Copper Crescent, Katanga (Shaba), Congo DR (Zaire)
Dimensions: 55 mm x 41 mm x 23 mm

Sorry Don, I'm afraid is Chrysocolla. I did the corresponding analysis of these samples and even spoke with representatives of the University of Arizona from where theoretically came the classification as "Ajoite", and is not Ajoite but Chrysocolla.

You can find more info in this Mindat's thread: https://www.mindat.org/mesg-11-377662.html


Dear Jordi,

No need to apologize, you are helping me. I have read the mindat thread. I cannot edit my post. Can you please correct the mistake?

Thank you.

Sincerely,

Don
_______________________________________________

Done

Jordi
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Don Lum




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PostPosted: Aug 16, 2017 19:11    Post subject: Re: Don Lum Collection  

A big THANK YOU to Tony and Jordi.

Botryoidal and mammillary translucent and lustrous blue-green chalcedony colored by copper.



IMG_7539.JPG
 Mineral: Quartz (variety chalcedony), Chrysocolla
 Locality:
Inspiration Pit, Inspiration, Miami-Inspiration District (Globe-Miami District), Gila County, Arizona, USA
 Dimensions: 94 mm x 52 mm 34 mm
 Description:
 Viewed:  1951 Time(s)

IMG_7539.JPG



P8151336.JPG
 Mineral: Quartz (variety chalcedony), Chrysocolla
 Locality:
Inspiration Pit, Inspiration, Miami-Inspiration District (Globe-Miami District), Gila County, Arizona, USA
 Dimensions: 94 mm x 52 mm x 34 mm
 Description:
 Viewed:  1950 Time(s)

P8151336.JPG



P8151338.JPG
 Mineral: Quartz (variety chalcedony), Chrysocolla
 Locality:
Inspiration Pit, Inspiration, Miami-Inspiration District (Globe-Miami District), Gila County, Arizona, USA
 Dimensions: 94 mm x 52 mm x 34 mm
 Description:
 Viewed:  1951 Time(s)

P8151338.JPG



P8151339.JPG
 Mineral: Quartz (variety chalcedony), Chrysocolla
 Locality:
Inspiration Pit, Inspiration, Miami-Inspiration District (Globe-Miami District), Gila County, Arizona, USA
 Dimensions: 94 mm x 52 mm x 34 mm
 Description:
 Viewed:  1946 Time(s)

P8151339.JPG



P8151342.JPG
 Mineral: Quartz (variety chalcedony), Chrysocolla
 Locality:
Inspiration Pit, Inspiration, Miami-Inspiration District (Globe-Miami District), Gila County, Arizona, USA
 Dimensions: 94 mm x 52 mm x 34 mm
 Description:
 Viewed:  1958 Time(s)

P8151342.JPG



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PostPosted: Aug 17, 2017 19:37    Post subject: Re: Don Lum Collection  

Brucite


IMG_7534.JPG
 Mineral: Brucite
 Locality:
Killa Saifullah District, Balochistan (Baluchistan), Pakistan
 Dimensions: 53 mm x 30 mm x 31 mm
 Description:
 Viewed:  1883 Time(s)

IMG_7534.JPG



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PostPosted: Aug 19, 2017 21:57    Post subject: Re: Don Lum Collection  

Tobi wrote:
Don Lum wrote:
Tobi wrote:
By the way, for those who are interested but don't speak German: Bergmännisch Glück means miner's luck :-)
Thanks for your comment, Tobi. From what I understand, it is an historic mine dating back to the 1700's which has had some recent collecting activity.
I don't have any reliable source for that certain locality, but the first mining activities (for silver) around Frohnau started in the late 15th century. And yes, there were some beautiful new fluorite finds during our century (a very good one in 2008), I think the most recent ones were in 2014.

Here's a picture of a fluorite specimen with colour-zoning from that locality from my collection:


Hello Tobi,

I really like your Fluorite specimen. It has beautiful color zoning, but your photograph captures much more than that. The crystal face has a very interesting surface. If I am not mistaken your picture illustrates what I believe is an example of what Dr. John Rakovan terms 2-dimensional nucleation and spread of atoms and molecules to form crystal faces layer by layer. He gave a wonderful presentation at the 2016 Dallas Symposium recorded by Blue Cap Productions.

Regards,

Don

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Andreas Gerstenberg




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PostPosted: Aug 24, 2017 06:24    Post subject: Re: Don Lum Collection  

Hello,

the mines on the Bergmännisch Glück Flacher vein are very old indeed. However, fluorites are mined there until that very day;-) There are small finds in pockets every two or three weeks.

The somehow problem is the correct name of the mine. Hence it´s a kind of cluster of old mines there. Many small mines (Bergmännisch Glück, Inseltschacht Fundgrube and others) were later consolidated and some of those reopened in the WISMUT-era. You never know where exactly each fluorite pocket was mined because it´s never well documented... Fluorite, Bergmännisch Glück Flacher, Frohnau - that´s it.

These yellow crystals in your collection, Don, i think these were mined in 2015 or 2016. There was a bigger find of dark yellow crystals, most of the specimens made it to the US (but didn´t sell that good, however...).

Best regards
Andreas
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PostPosted: Aug 24, 2017 22:52    Post subject: Re: Don Lum Collection  

Andreas Gerstenberg wrote:
Hello,

the mines on the Bergmännisch Glück Flacher vein are very old indeed. However, fluorites are mined there until that very day;-) There are small finds in pockets every two or three weeks.

The somehow problem is the correct name of the mine. Hence it´s a kind of cluster of old mines there. Many small mines (Bergmännisch Glück, Inseltschacht Fundgrube and others) were later consolidated and some of those reopened in the WISMUT-era. You never know where exactly each fluorite pocket was mined because it´s never well documented... Fluorite, Bergmännisch Glück Flacher, Frohnau - that´s it.

These yellow crystals in your collection, Don, i think these were mined in 2015 or 2016. There was a bigger find of dark yellow crystals, most of the specimens made it to the US (but didn´t sell that good, however...).

Best regards
Andreas


Thank you very much for the information, Andreas. Much appreciated.

Sincerely,

Don

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PostPosted: Aug 28, 2017 15:09    Post subject: Re: Don Lum Collection  

Corundum (variety sapphire)


P8281392.JPG
 Mineral: Corundum (variety sapphire)
 Locality:
Ratnapura, Ratnapura District, Sabaragamuwa Province, Sri Lanka
 Dimensions: 38 mm x 16 mm x 12 mm
 Description:
Transparent, gemmy, lustrous sapphire with blue phantoms and some stepped growth
 Viewed:  1491 Time(s)

P8281392.JPG



P8281353.JPG
 Mineral: Corundum (variety sapphire)
 Locality:
Ratnapura, Ratnapura District, Sabaragamuwa Province, Sri Lanka
 Dimensions: 15 mm x 15 mm x 11 mm
 Description:
Both ends have abrupt pinacoid terminations instead of the typical tapered steep bipyramidal terminations.
 Viewed:  1485 Time(s)

P8281353.JPG



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PostPosted: Aug 29, 2017 21:34    Post subject: Re: Don Lum Collection  

Minerva Number 1


IMG_7544.JPG
 Mineral: Fluorite, Calcite
 Locality:
Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
 Dimensions: 78 mm x 51 mm x 48 mm
 Description:
 Viewed:  1397 Time(s)

IMG_7544.JPG



IMG_7552.JPG
 Mineral: Fluorite, Calcite
 Locality:
Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
 Dimensions: 74 mm x 60 mm x 49 mm
 Description:
 Viewed:  1395 Time(s)

IMG_7552.JPG



IMG_7553.JPG
 Mineral: Fluorite, Calcite
 Locality:
Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
 Dimensions: 74 mm x 60 mm x 49 mm
 Description:
 Viewed:  1392 Time(s)

IMG_7553.JPG



IMG_7570.JPG
 Mineral: Fluorite, Calcite
 Locality:
Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
 Dimensions: 74 mm x 60 mm x 49 mm
 Description:
 Viewed:  1397 Time(s)

IMG_7570.JPG



IMG_7579.JPG
 Mineral: Fluorite, Calcite
 Locality:
Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA
 Dimensions: 74 mm x 60 mm x 49 mm
 Description:
 Viewed:  1398 Time(s)

IMG_7579.JPG



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