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Collection of Heimo Hellwig
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Heimo Hellwig




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PostPosted: Sep 04, 2016 11:19    Post subject: Re: Collection of Heimo Hellwig  

Pierre Joubert wrote:
Hi Heimo. The smithsonite's shape is rather peculiar. I wonder if there is another mineral under the smithsonite. Best regards.


Hi Pierre, certainly a peculiar shape and the specimen is a floater, so no indication what could be underneath. My guess would be Dolomite, if anything. Regards.
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Heimo Hellwig




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PostPosted: Sep 05, 2016 10:55    Post subject: Re: Collection of Heimo Hellwig  

Tsumeb.


DSCF8782.JPG
 Mineral: Calcite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 75mmx60mmx60mm
 Description:
 Viewed:  8576 Time(s)

DSCF8782.JPG



DSCF8783.JPG
 Mineral: Calcite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 75mmx60mmx60mm
 Description:
 Viewed:  8552 Time(s)

DSCF8783.JPG



DSCF8784.JPG
 Mineral: Calcite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 75mmx60mmx60mm
 Description:
 Viewed:  8576 Time(s)

DSCF8784.JPG


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Heimo Hellwig




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PostPosted: Sep 08, 2016 00:17    Post subject: Re: Collection of Heimo Hellwig  

Tsumeb.


DSCF8804.JPG
 Mineral: Cerussite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 50mmx50mmx35mm
 Description:
 Viewed:  8439 Time(s)

DSCF8804.JPG



DSCF8805.JPG
 Mineral: Cerussite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 50mmx50mmx35mm
 Description:
 Viewed:  8442 Time(s)

DSCF8805.JPG



DSCF8806.JPG
 Mineral: Cerussite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 50mmx50mmx35mm
 Description:
 Viewed:  8454 Time(s)

DSCF8806.JPG



DSCF8807.JPG
 Mineral: Cerussite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 50mmx50mmx35mm
 Description:
 Viewed:  8437 Time(s)

DSCF8807.JPG



DSCF8808.JPG
 Mineral: Cerussite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 50mmx50mmx35mm
 Description:
 Viewed:  8450 Time(s)

DSCF8808.JPG


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Pierre Joubert




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PostPosted: Sep 08, 2016 01:33    Post subject: Re: Collection of Heimo Hellwig  

Hello Heimo. Needless to say, I love your collection! What is the black mineral on the calcite ( https://www.mineral-forum.com/message-board/download.php?id=72298 ) Is it perhaps mottramite? Best regards.
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Heimo Hellwig




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PostPosted: Sep 08, 2016 03:39    Post subject: Re: Collection of Heimo Hellwig  

Pierre Joubert wrote:
Hello Heimo. Needless to say, I love your collection! What is the black mineral on the calcite ( https://www.mineral-forum.com/message-board/download.php?id=72298 ) Is it perhaps mottramite? Best regards.


Thank you Pierre. Those little spheres on the Calcite specimen are actually dark green in colour. As with quite a few of my specimens, I can't with any degree of certainty identify some of the secondary minerals present on these specimens. Any expert opinion/advice from knowledgeable members of the Forum will thus be appreciated. Kind regards.
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Jordi Fabre
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PostPosted: Sep 08, 2016 07:56    Post subject: Re: Collection of Heimo Hellwig  

Heimo Hellwig wrote:
Pierre Joubert wrote:
Hello Heimo. Needless to say, I love your collection! What is the black mineral on the calcite ( https://www.mineral-forum.com/message-board/download.php?id=72298 ) Is it perhaps mottramite? Best regards.

Thank you Pierre. Those little spheres on the Calcite specimen are actually dark green in colour. As with quite a few of my specimens, I can't with any degree of certainty identify some of the secondary minerals present on these specimens. Any expert opinion/advice from knowledgeable members of the Forum will thus be appreciated. Kind regards.

I would say Duftite, but without an analysis is impossible to be sure.
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Heimo Hellwig




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PostPosted: Sep 08, 2016 10:03    Post subject: Re: Collection of Heimo Hellwig  

Jordi Fabre wrote:
Heimo Hellwig wrote:
Pierre Joubert wrote:
Hello Heimo. Needless to say, I love your collection! What is the black mineral on the calcite ( https://www.mineral-forum.com/message-board/download.php?id=72298 ) Is it perhaps mottramite? Best regards.

Thank you Pierre. Those little spheres on the Calcite specimen are actually dark green in colour. As with quite a few of my specimens, I can't with any degree of certainty identify some of the secondary minerals present on these specimens. Any expert opinion/advice from knowledgeable members of the Forum will thus be appreciated. Kind regards.

I would say Duftite, but without an analysis is impossible to be sure.


Thank you Jordi. I fully realize that absolute certainty is only possible with an analysis. The effort however, from here, for me does in many cases not warrant this effort for to my opinion secondary minerals on specific specimens. Opinions and suggestions on this forum are satisfactory for me. Kind regards.
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Heimo Hellwig




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PostPosted: Sep 09, 2016 13:21    Post subject: Re: Collection of Heimo Hellwig  

Tsumeb.


DSCF8814.JPG
 Mineral: Calcite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 18mmx18mmx25mm
 Description:
 Viewed:  8280 Time(s)

DSCF8814.JPG



DSCF8817.JPG
 Mineral: Calcite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 18mmx18mmx25mm
 Description:
 Viewed:  8296 Time(s)

DSCF8817.JPG



DSCF8820.JPG
 Mineral: Aragonite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 30mmx25mmx12mm
 Description:
 Viewed:  8307 Time(s)

DSCF8820.JPG



DSCF8821.JPG
 Mineral: Aragonite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 30mmx25mmx12mm
 Description:
 Viewed:  8290 Time(s)

DSCF8821.JPG


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Tobi




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PostPosted: Sep 12, 2016 01:50    Post subject: Re: Collection of Heimo Hellwig  

Pierre Joubert wrote:
Heimo Hellwig wrote:
Thanks Pierre, just wish my photography was as excellent as yours and the other guys on the forum.
Hi Heimo. I am reasonably happy with my photography, but there is lots of room for improvement. You are not doing too bad for a beginner! :-)

Heimo, it takes a while until one is able to make really good mineral photos. Just look at my collection thread, the first really good photos appeared on very recent pages. Some years ago my photos were horrible, even far away from the quality of your's! I had a bad camera and no idea about how to use light and background. A long process of trial and error and many good advices from experienced mineral collectors and photographers (e.g. Carles Millan) helped me to develop. Today, there are still some mineral specimens that make me desperate, but I'm also able to manage good photos of many of them, skills that I just could dream about a few years ago ...

You should start a discussion with other collectors and ask them how to improve your photos, I recommend this part of our forum: https://www.mineral-forum.com/message-board/viewforum.php?f=19

Regards
Tobi
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Heimo Hellwig




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PostPosted: Sep 12, 2016 02:56    Post subject: Re: Collection of Heimo Hellwig  

Tobi wrote:
Pierre Joubert wrote:
Heimo Hellwig wrote:
Thanks Pierre, just wish my photography was as excellent as yours and the other guys on the forum.
Hi Heimo. I am reasonably happy with my photography, but there is lots of room for improvement. You are not doing too bad for a beginner! :-)

Heimo, it takes a while until one is able to make really good mineral photos. Just look at my collection thread, the first really good photos appeared on very recent pages. Some years ago my photos were horrible, even far away from the quality of your's! I had a bad camera and no idea about how to use light and background. A long process of trial and error and many good advices from experienced mineral collectors and photographers (e.g. Carles Millan) helped me to develop. Today, there are still some mineral specimens that make me desperate, but I'm also able to manage good photos of many of them, skills that I just could dream about a few years ago ...

You should start a discussion with other collectors and ask them how to improve your photos, I recommend this part of our forum: https://www.mineral-forum.com/message-board/viewforum.php?f=19

Thank you very much for the expert advice Tobi. At this point in time I'm not sure how long and whether I will continue with mineral collecting, hence I don't really want to invest in expensive equipment. Regards.

Regards
Tobi
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Carles Millan
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PostPosted: Sep 12, 2016 03:01    Post subject: Re: Collection of Heimo Hellwig  

Tobi wrote:
A long process of trial and error and many good advices from experienced mineral collectors and photographers (e.g. Carles Millan) helped me to develop.

Tobi,

Thanks for your gentle words, but you are wrong. Unfortunately I'm not among the experienced mineral collectors and photographers.
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Tobi




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PostPosted: Sep 12, 2016 03:33    Post subject: Re: Collection of Heimo Hellwig  

Carles Millan wrote:
Thanks for your gentle words, but you are wrong. Unfortunately I'm not among the experienced mineral collectors and photographers.
That depends on the perspective: Compared to guys like Rock Currier (R.I.P.) you may not, but from my point of view you are - and you often gave me some good advices concerning my photos!
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Heimo Hellwig




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PostPosted: Sep 12, 2016 05:10    Post subject: Re: Collection of Heimo Hellwig  

Back to Tsumeb.


DSCF8809.JPG
 Mineral: Azurite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 70mmx50mmx50mm
 Description:
 Viewed:  8102 Time(s)

DSCF8809.JPG



DSCF8810.JPG
 Mineral: Azurite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 70mmx50mmx50mm
 Description:
 Viewed:  8092 Time(s)

DSCF8810.JPG



DSCF8811.JPG
 Mineral: Azurite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 70mmx50mmx50mm
 Description:
 Viewed:  8102 Time(s)

DSCF8811.JPG



DSCF8812.JPG
 Mineral: Azurite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 70mmx50mmx50mm
 Description:
 Viewed:  8120 Time(s)

DSCF8812.JPG



DSCF8813.JPG
 Mineral: Azurite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 70mmx50mmx50mm
 Description:
 Viewed:  8130 Time(s)

DSCF8813.JPG


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Debbie Woolf




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PostPosted: Sep 12, 2016 06:45    Post subject: Re: Collection of Heimo Hellwig  

Hi Heimo

Yesterday a most viewed photo took me to your collection page 9, I browsed through and have a few queries ...

Dscf 4936 is labelled calcite I would suggest it is a dolomite specimen
" 4953 again calcite but I think it could be smithsonite
" 5289 locality is said to be Goboboseb I think locality is Brandberg as these quartz on feldspar matrix are from Brandberg and those on granite matrix are from the Goboboseb
Dscf 5229 I wonder if it is smithsonite as the combination with azurite is extremely rare
" 5524 The fluorite, is that quartz or baryte? I've never seen quartz like that from here
" 5575 The matrix would suggest Goboboseb
" 8215 I confirm mottramite

Kind Regards
Debbie
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Heimo Hellwig




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PostPosted: Sep 12, 2016 11:20    Post subject: Re: Collection of Heimo Hellwig  

Debbie Woolf wrote:
Hi Heimo

Yesterday a most viewed photo took me to your collection page 9, I browsed through and have a few queries ...

Dscf 4936 is labelled calcite I would suggest it is a dolomite specimen
" 4953 again calcite but I think it could be smithsonite
" 5289 locality is said to be Goboboseb I think locality is Brandberg as these quartz on feldspar matrix are from Brandberg and those on granite matrix are from the Goboboseb
Dscf 5229 I wonder if it is smithsonite as the combination with azurite is extremely rare
" 5524 The fluorite, is that quartz or baryte? I've never seen quartz like that from here
" 5575 The matrix would suggest Goboboseb
" 8215 I confirm mottramite

Kind Regards
Debbie


Hello Debbie,

Thanks for the enquiries. It must be remembered that I am by no means an expert and that most identifications are made by visual comparison and not by lab analysis:

4933-4937: Front of specimen definitely calcite and back of specimen dolomite with scattered calcite crystals.
4953/4954: Definitely calcite.
5229/5231: Visually Iam quite certain it is smithsonite.
5289/5575: Both specimens were purchased in Uis and the information as to locality given by dealer.
5524: I am not able to confirm or deny your suggestion as the information given is that obtained from the miner.
8215: Thanks for the confirmation.

Kind regards,
Heimo
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Heimo Hellwig




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PostPosted: Sep 13, 2016 00:36    Post subject: Re: Collection of Heimo Hellwig  

Tsumeb.


DSCF8801.JPG
 Mineral: Cerussite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 40mmx30mmx20mm
 Description:
 Viewed:  7916 Time(s)

DSCF8801.JPG



DSCF8802.JPG
 Mineral: Cerussite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 40mmx30mmx20mm
 Description:
 Viewed:  7921 Time(s)

DSCF8802.JPG



DSCF8803.JPG
 Mineral: Cerussite
 Locality:
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
 Dimensions: 40mmx30mmx20mm
 Description:
 Viewed:  7945 Time(s)

DSCF8803.JPG


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Robert Seitz




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PostPosted: Sep 13, 2016 22:13    Post subject: Re: Collection of Heimo Hellwig  

I have a few similar specimens.

1. The smithsonite is overgrown on a limonitic boxwork structure.
2. The smithsonite appears to be grown in single to multiple similar layers with a boxwork structure. There is no remnant overgrown structure. It appears the smithsonite may have overgrown on material which was then leached away?

Anyhow, I've started looking for these as interesting to collect.
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Heimo Hellwig




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PostPosted: Sep 14, 2016 00:34    Post subject: Re: Collection of Heimo Hellwig  

Robert Seitz wrote:
I have a few similar specimens.

1. The smithsonite is overgrown on a limonitic boxwork structure.
2. The smithsonite appears to be grown in single to multiple similar layers with a boxwork structure. There is no remnant overgrown structure. It appears the smithsonite may have overgrown on material which was then leached away?

Anyhow, I've started looking for these as interesting to collect.


Hi Robert, thanks for the reply. I take it you are referring to specimen 5229/5231.
Regards.
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Robert Seitz




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PostPosted: Sep 14, 2016 01:07    Post subject: Re: Collection of Heimo Hellwig  

Your picture numbers are DSCF 8772 to DSCF 8775.
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Heimo Hellwig




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PostPosted: Sep 14, 2016 01:23    Post subject: Re: Collection of Heimo Hellwig  

[quote="Robert Seitz"]Your picture numbers are DSCF 8772 to DSCF 8775.[/quot

That makes sense. Thank you.
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