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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Nov 20, 2013 00:15 Post subject: Re: Don Lum Collection |
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Mike Wood wrote: | Ahhh, now I see the light ! Thanks for explaining that Don. The paper between the light and the subject technique sounds neat, I'll have to give that a go.
Sincerely yours,
Mike : ) |
Mike,
One explanation that might explain why the first picture of the floating kunzite specimen is so red is that the paper filters out the shorter end of the spectrum so only the light with wavelengths toward the longer end (red) get through and thus making the specimen look more red than the true color. That was not my intention. I was trying to highlight the termination.
Don
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2069
Location: Oklahoma
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Posted: Nov 20, 2013 09:34 Post subject: Re: Don Lum Collection |
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Don,
Your kunzite specimen from Pech is really nice. I like the texture revealed in the second photo 1-IMG_1672.JPG which I assume is the bottom of the piece. You have really captured the growth features/etching nicely. I have to compliment you on your photos; they have improved a lot since your first posts.
Lastly, the ametrine slab is very interesting, and I also like the realgar from Quiruvilca.
Michael
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Nov 20, 2013 10:23 Post subject: Re: Don Lum Collection |
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crosstimber wrote: | Don,
Your kunzite specimen from Pech is really nice. I like the texture revealed in the second photo 1-IMG_1672.JPG which I assume is the bottom of the piece. You have really captured the growth features/etching nicely. I have to compliment you on your photos; they have improved a lot since your first posts.
Lastly, the ametrine slab is very interesting, and I also like the realgar from Quiruvilca.
Michael |
Michael,
Thank you for your nice comments. I appreciate your kind words and help with my photography.
Don
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Nov 27, 2013 00:22 Post subject: Re: Don Lum Collection |
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crosstimber wrote: | Don,
Your kunzite specimen from Pech is really nice. I like the texture revealed in the second photo 1-IMG_1672.JPG which I assume is the bottom of the piece. You have really captured the growth features/etching nicely. I have to compliment you on your photos; they have improved a lot since your first posts.
Lastly, the ametrine slab is very interesting, and I also like the realgar from Quiruvilca.
Michael |
Michael,
Image 1663 is the top and image 1672 is the bottom. You are correct.
Don
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Nov 27, 2013 00:31 Post subject: Re: Don Lum Collection |
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Don Lum wrote: | Mike Wood wrote: | Thank you for your reply Don. I wonder if the 'filtered quartz and reveal' bulb is an arc-light type bulb with quartz glass which would allow UV light to illuminate the subject, thus producing the strong pink colour of the kunzite in image 1663. Could it then be fluorescence causing the colour change?
Best regards, Mike |
Dear Mike,
What I used was a quartz halogen lamp that has a clear plate over the bulb (factory installed) and a Reveal GE (TM) bulb which has a "full spectrum" although I don't know the exact wavelength of the light emitted. I used a sheet of white copy paper between the light(s) and the specimen and that seemed to bring out the surface details which were washed out without the paper. I also used that technique in the last Russian Fluorite specimen that I posted a while back on FMF. I hope this helps.
Sincerely,
Don |
Mike,
The clear plate is under the bulb, id est between the bulb and the subject. Probably put there to prevent anyone from touching the bulb.
Don
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Mike Wood
Joined: 16 Dec 2010
Posts: 456
Location: Northern England
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Posted: Nov 27, 2013 23:43 Post subject: Re: Don Lum Collection |
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Don Lum wrote: | Mike,
The clear plate is under the bulb, id est between the bulb and the subject. Probably put there to prevent anyone from touching the bulb.
Don |
Thank you for explaining this Don. Looking forward to seeing more of your specimens.
Best regards, Mike : )
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Dec 01, 2013 22:10 Post subject: Re: Don Lum Collection |
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Collection
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Hematite Brumado, Bahia, Brazil 14 x 11.5 cm |
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32186 Time(s) |
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Hematite Brumado, Bahia, Brazil 14 x 11.5 cm |
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32199 Time(s) |
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Feldspar var Microcline Lake George District, Park County, Colorado, USA 9 x 6.5 cm Orthoclase crystal cluster |
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32200 Time(s) |
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Rhodonite Mina San Martin, Ancash, Peru 8 x 5.4 cm |
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32197 Time(s) |
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Roselite-Wendwilsonite Series Bou Azzer District, Anti-Atlas Mountains, Tazenakht, Ouarzazate Province, Souss-Massa-Draa Region, Morocco 6.5 x 4 cm |
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32212 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Dec 04, 2013 23:34 Post subject: Re: Don Lum Collection |
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Wendwilsonite is a very rare calcium, magnesium, cobalt arsenate that is typically pink, red or magenta. It was named in 1987 in honor of Dr. Wendell E. Wilson (1946-), mineralogist, founder, editor and publisher of the Mineralogical Record.
Description: |
Roselite-Wendwilsonite Series Bou Azzer District, Anti-Atlas Mountains, Tazenakht, Ouarzazate Province, Souss-Massa-Draa Region, Morocco 6.4 x 5.5 cm
Material from this find has been tested and confirmed to be Wendwilsonite |
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32108 Time(s) |
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Roselite-Wendwilsonite Series Bou Azzer District, Anti-Atlas Mountains, Tazenakht, Ouarzazate Province, Souss-Massa-Draa Region, Morocco 6.4 x 5.5 cm Material from this find has been tested and confirmed to be Wendwilsonite |
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32191 Time(s) |
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Description: |
Roselite-Wendwilsonite Series Bou Azzer District, Anti-Atlas Mountains, Tazenakht, Ouarzazate Province, Souss-Massa-Draa Region, Morocco 6.4 x 5.5 cm
Material from this find has been tested and confirmed to be Wendwilsonite |
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32101 Time(s) |
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Description: |
Roselite-Wendwilsonite Series Bou Azzer District, Anti-Atlas Mountains, Tazenakht, Ouarzazate Province, Souss-Massa-Draa Region, Morocco 6.4 x 5.5 cm
Material from this find has been tested and confirmed to be Wendwilsonite |
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32069 Time(s) |
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Description: |
Roselite-Wendwilsonite Series Bou Azzer District, Anti-Atlas Mountains, Tazenakht, Ouarzazate Province, Souss-Massa-Draa Region, Morocco 6.4 x 5.5 cm
Material from this find has been tested and confirmed to be Wendwilsonite |
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32084 Time(s) |
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Description: |
Roselite-Wendwilsonite Series Bou Azzer District, Anti-Atlas Mountains, Tazenakht, Ouarzazate Province, Souss-Massa-Draa Region, Morocco 6.4 x 5.5 cm
Material from this find has been tested and confirmed to be Wendwilsonite |
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32126 Time(s) |
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Description: |
Roselite-Wendwilsonite Series Bou Azzer District, Anti-Atlas Mountains, Tazenakht, Ouarzazate Province, Souss-Massa-Draa Region, Morocco 6.4 x 5.5 cm
Material from this find has been tested and confirmed to be Wendwilsonite |
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32140 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Dec 04, 2013 23:43 Post subject: Re: Don Lum Collection |
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Collection
Description: |
Goethite, Quartz var Smoky Lake George District, Park County, Colorado, USA 5.5 x 3.3 x 3.2 cm |
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32125 Time(s) |
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Alabandite Uchucchuacua Mine, Oyon Province, Lima Department, Peru 5.5 x 3.6 cm |
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32153 Time(s) |
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Calcite, Quartz Nasik, Maharashtra, India 10.2 x 8.4 cm |
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32127 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Dec 05, 2013 15:02 Post subject: Re: Don Lum Collection |
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Collection
Description: |
Sphalerite, Galena, Chalcopyrite 2100 foot level, Camp Bird Mine, Ouray, Sneffels District, Ouray Count, Colorado, USA 4.0 x 4.0 x 4.0 cm |
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32082 Time(s) |
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Sphalerite, Galena, Chalcopyrite 2100 foot level, Camp Bird Mine, Ouray, Sneffels District, Ouray Count, Colorado, USA 4.0 x 4.0 x 4.0 cm |
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32074 Time(s) |
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Description: |
Sphalerite, Galena, Chalcopyrite 2100 foot level, Camp Bird Mine, Ouray, Sneffels District, Ouray Count, Colorado, USA 4.0 x 4.0 x 4.0 cm |
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32100 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Dec 06, 2013 15:50 Post subject: Re: Don Lum Collection |
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Elmwood Calcites
Description: |
Calcite Elmwood Mine, Smith County, Tennessee, USA 9.7 x 7.0 cm |
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32032 Time(s) |
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Description: |
Calcite, Sphalerite, Galena Elmwood Mine, Smith County, Tennessee, USA 14.5 x 10 x 10 cm |
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32015 Time(s) |
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Description: |
Calcite, Sphalerite, Galena Elmwood Mine, Smith County, Tennessee, USA 14.5 x 10 x 10 cm |
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32027 Time(s) |
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Description: |
Calcite Elmwood Mine, Smith County, Tennessee, USA 8.4 x 6.3 cm |
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32002 Time(s) |
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Description: |
Calcite Elmwood Mine, Smith County, Tennessee, USA 8.4 x 6.3 cm |
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32052 Time(s) |
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Pierre Joubert
Joined: 09 Mar 2012
Posts: 1605
Location: Western Cape
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Dec 07, 2013 11:50 Post subject: Re: Don Lum Collection |
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Good morning (here), Pierre, thanks for your compliment. I am working to get the colors as accurate as possible. Hi to Riana.
Sincerely yours,
Don
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Dec 07, 2013 12:15 Post subject: Re: Don Lum Collection |
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Quartz (Japan Law Twins)
Description: |
Quartz (Japan Law Twin), Wavellite Siglo XX Mine, Llallagua, Bustillo Province, Potosi Department, Bolivia 11 x 10 .5 cm |
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31850 Time(s) |
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Quartz (Japan Law Twin), Wavellite Siglo XX Mine, Llallagua, Bustillo Province, Potosi Department, Bolivia 11 x 10 .5 cm |
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31848 Time(s) |
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Quartz (Japan Law Twin), Wavellite Siglo XX Mine, Llallagua, Bustillo Province, Potosi Department, Bolivia 11 x 10 .5 cm back of the specimen |
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31896 Time(s) |
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Quartz (Japan Law Twin) Magaliesberg Mountains, Pretoria Gauteng Province, South africa 13 x 6.4 cm
with second generation drusy quartz coating |
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31892 Time(s) |
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Quartz (Japan Law Twin), Atacamite La Farola Mine, Cerro Pintado, Las Pintadas District,Copiapo Province, Atacama Region, Chile 7.3 x 5.1 x 3.5 cm |
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31855 Time(s) |
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Description: |
Quartz (Japan Law Twin), Atacamite La Farola Mine, Cerro Pintado, Las Pintadas District,Copiapo Province, Atacama Region, Chile 7.3 x 5.1 x 3.5 cm |
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31871 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Dec 08, 2013 17:20 Post subject: Re: Don Lum Collection |
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Collection
Description: |
Galena, Quartz Palomo Mine, Castrovirreina Province, Huancavelica Department, Peru 4.5 x 3.2 x 3.0 cm |
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31792 Time(s) |
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Galena, Quartz Palomo Mine, Castrovirreina Province, Huancavelica Department, Peru 4.5 x 3.2 x 3.0 cm |
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31826 Time(s) |
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Description: |
Axinite Angelina III Mine, Pisco Province, Ica Department, Peru 3.3 x 3.0 x 1.9 cm |
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31789 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Dec 09, 2013 14:28 Post subject: Re: Don Lum Collection |
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Collection
Description: |
Quartz, Fluorapatite, Muscovite, Ferberite Panasqueira Mine, Covilha, Castelo Branco. Cova da Beira, Centro, Portugal 13 x 4.3 x 3.4 cm ex Alain Martaud |
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31717 Time(s) |
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Description: |
Quartz, Fluorapatite, Muscovite, Ferberite Panasqueira Mine, Covilha, Castelo Branco. Cova da Beira, Centro, Portugal 13 x 4.3 x 3.4 cm ex Alain Martaud |
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31725 Time(s) |
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Description: |
Quartz, Fluorapatite, Muscovite, Ferberite Panasqueira Mine, Covilha, Castelo Branco. Cova da Beira, Centro, Portugal 13 x 4.3 x 3.4 cm ex Alain Martaud |
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31749 Time(s) |
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Description: |
Quartz, Fluorapatite, Muscovite, Ferberite Panasqueira Mine, Covilha, Castelo Branco. Cova da Beira, Centro, Portugal 13 x 4.3 x 3.4 cm ex Alain Martaud |
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31738 Time(s) |
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Description: |
Feldspar var Microcline (Carlsbad Twin), Quartz var Smoky, Fluorite, Hyalite Opal Erongo Mountains, Erongo Region, Namibia 13.5 x 6.2 x 3.0 cm |
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31714 Time(s) |
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Description: |
Feldspar var Microcline (Carlsbad Twin), Quartz var Smoky, Fluorite, Hyalite Opal Erongo Mountains, Erongo Region, Namibia 13.5 x 6.2 x 3.0 cm |
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31742 Time(s) |
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Description: |
Feldspar var Microcline (Carlsbad Twin), Quartz var Smoky, Fluorite, Hyalite Opal Erongo Mountains, Erongo Region, Namibia 13.5 x 6.2 x 3.0 cm |
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31729 Time(s) |
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Description: |
Fluorite, Baryte Annabel Lee Mine, Harris Creek Sub-district, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA 8.4 x 6.3 cm ex Ross C. Lilly |
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31723 Time(s) |
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Description: |
Fluorite, Baryte Annabel Lee Mine, Harris Creek Sub-district, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA 8.4 x 6.3 cm ex Ross C. Lilly |
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31737 Time(s) |
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Description: |
Fluorite, Baryte Annabel Lee Mine, Harris Creek Sub-district, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA 8.4 x 6.3 cm ex Ross C. Lilly |
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31743 Time(s) |
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Description: |
Fluorite, Baryte Annabel Lee Mine, Harris Creek Sub-district, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA 8.4 x 6.3 cm ex Ross C. Lilly |
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31737 Time(s) |
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Description: |
Fluorite, Baryte Annabel Lee Mine, Harris Creek Sub-district, Illinois-Kentucky Fluorspar District, Hardin County, Illinois, USA 8.4 x 6.3 cm ex Ross C. Lilly |
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31739 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Dec 12, 2013 15:15 Post subject: Re: Don Lum Collection |
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Collection
Description: |
Pyromorphite Bunker Hill Mine, Coeur D'Alene District, Shoshone County, Idaho, USA 5.2 x 3.8 cm |
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31639 Time(s) |
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Description: |
Hematite variety needle ore Sherwood Mine, Iron County, Michigan, USA 5.5 x 4.9 x 2.0 cm |
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31622 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Dec 14, 2013 14:58 Post subject: Re: Don Lum Collection |
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Collection
Description: |
Calcite, Hematite Babu, Guangxi, China 11.2 x 7.0 cm |
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31565 Time(s) |
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Description: |
Calcite, Hematite Babu, Guangxi, China 11.2 x 7.0 cm |
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31484 Time(s) |
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Description: |
Calcite, Hematite Babu, Guangxi, China 11.2 x 7.0 cm |
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31494 Time(s) |
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Description: |
Calcite, Hematite Babu, Guangxi, China 11.2 x 7.0 cm |
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31497 Time(s) |
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Description: |
Fluorite, Quartz, Calcite var Manganoan Huanggang Mine, Keshiketeng County, Chifeng Prefecture, Inner Mongolia, Autonomous Region, China 8.5 x 4.5 cm |
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31478 Time(s) |
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Description: |
Fluorite, Quartz, Calcite var Manganoan Huanggang Mine, Keshiketeng County, Chifeng Prefecture, Inner Mongolia, Autonomous Region, China 8.5 x 4.5 cm |
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31468 Time(s) |
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Description: |
Amazonite Crystal Peak, Teller County, Colorado, USA 8 x 6 cm Repaired |
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31470 Time(s) |
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Description: |
Amazonite Crystal Peak, Teller County, Colorado, USA 8 x 6 cm Repaired |
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31446 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Dec 15, 2013 23:08 Post subject: Re: Don Lum Collection |
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Collection
Description: |
Fluorite Esperanza Mine near Melchor Muzquiz, Coahuila, Mexico 7.4 x 5.5 cm Floater |
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31394 Time(s) |
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Description: |
Fluorite Esperanza Mine near Melchor Muzquiz, Coahuila, Mexico 7.4 x 5.5 cm |
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31391 Time(s) |
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Description: |
Fluorite Esperanza Mine near Melchor Muzquiz, Coahuila, Mexico 6.0 x 5.5 cm |
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31393 Time(s) |
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Description: |
Fluorite Esperanza Mine near Melchor Muzquiz, Coahuila, Mexico 6.0 x 5.5 cm |
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31416 Time(s) |
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Description: |
Mica var Biotite Bear Lake Diggings, Gooderham, Haliburton County, Ontario, Canada 8.7 x 8.0 cm |
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31380 Time(s) |
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Description: |
Fluorite, Quartz Yaogangxian Mine, Hunan, China 5 x 3.4 cm |
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31357 Time(s) |
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Description: |
Fluorite, Quartz Yaogangxian Mine, Hunan, China 5 x 3.4 cm |
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31362 Time(s) |
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Description: |
Fluorite, Quartz Yaogangxian Mine, Hunan, China 5 x 3.4 cm |
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31408 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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Posted: Dec 18, 2013 23:56 Post subject: Re: Don Lum Collection |
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Collection
Description: |
Mimetite Santa Eulalia Mine, Chihuahua, Mexico 3.4 x 3.1 cm |
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31228 Time(s) |
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Description: |
Apatite Panasqueira Mine, Covilha, Castelo Branco. Cova da Beira, Centro, Portugal 3.9 x 3.5 cm |
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Viewed: |
31182 Time(s) |
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Description: |
Apatite Panasqueira Mine, Covilha, Castelo Branco. Cova da Beira, Centro, Portugal 3.9 x 3.5 cm |
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31225 Time(s) |
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Description: |
Calcite, Chalcopyrite Sweetwater Mine, Viburnum Trend District, Reynolds County, Missouri, USA 5 x 3.5 cm |
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31190 Time(s) |
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Description: |
Calcite, Chalcopyrite Sweetwater Mine, Viburnum Trend District, Reynolds County, Missouri, USA 5 x 3.5 cm |
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31206 Time(s) |
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Description: |
Quartz, Hematite Fengjiashan Mine, (Daye Copper Mine), Daye County, Huangshi Prefecture, Hubei Province, China 9.5 x 8.0 cm |
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31217 Time(s) |
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