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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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 Posted: May 11, 2013 11:07 Post subject: Re: Don Lum Collection |
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Some of the older specimens in my collection are from Australia. I have had a fascination with opals, SiO2•n(H2O) for a long time. I guess you could call me an Opalholic. I had the privilege of studying opal cutting techniques with two great instructors, Sarah Lee Boyce and Joe DePietro at the William Holland School of Lapidary Arts. I also had two great metalsmithing instructors, Dan Haga and Jim Richardson at that school.
| Description: |
Elbaite-Dravite
Northern Territory, Australia
9 x 5.6 x 5 cm |
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| Viewed: |
37778 Time(s) |
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| Description: |
Elbaite-Dravite
Northern Territory, Australia
9 x 5.6 x 5 cm |
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| Viewed: |
37887 Time(s) |
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| Description: |
Elbaite-Dravite
Northern Territory, Australia
9 x 5.6 x 5 cm |
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| Viewed: |
37779 Time(s) |
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| Description: |
Opal
Queensland, Australia
15 x 6.3 x 5 cm
ex-Bill Rudner.
Way back when, a person could stop by Chris Wright's place in Hot Springs and go through a bin with boulder opal rough. It was sold by the pound. That was okay because about 99.99% of it was ironstone matrix. I suspect that possibly as many as a dozen people have high-graded it before it got to the bin but every now and again Chris would put back a piece for that special person. Unfortunately, more often than not, I was usually not that person. |
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| Viewed: |
37852 Time(s) |
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| Description: |
Opal
Queensland, Australia
15 x 6.3 x 5 cm |
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| Viewed: |
37820 Time(s) |
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| Description: |
Opal
Queensland, Australia
15 x 6.3 x 5 cm
Cutting boulder opal can be really messy with the ironstone turning to mud under the grinding wheels. |
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| Viewed: |
37807 Time(s) |
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| Description: |
Opal
Queensland, Australia
15 x 6.3 x 5 cm |
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| Viewed: |
37841 Time(s) |
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| Description: |
Opal
Queensland, Australia
15 x 6.3 x 5 cm |
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| Viewed: |
37742 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: May 11, 2013 16:37 Post subject: Re: Don Lum Collection |
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Specimens from Australia. A specimen from Koroit. Koroit opal is a form of boulder opal.
According to Fred Ward's book, Opals, manuscript proofread by John S. White, Koroit is only a tiny spot on some maps, a two-to-three hour dirt road drive northeast of Yowah.
| Description: |
Opal
Koroit, Queensland, Australia
6.8 x 4.1 cm and 6.2 x 2.8 cm |
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37616 Time(s) |
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| Description: |
Opal
Koroit, Queensland, Australia
6.8 x 4.1 cm and 6.2 x 2.8 cm |
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| Viewed: |
37712 Time(s) |
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| Description: |
Opal
Koroit, Queensland, Australia
6.8 x 4.1 cm and 6.2 x 2.8 cm |
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| Viewed: |
37609 Time(s) |
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| Description: |
Opal
Koroit, Queensland, Australia
6.8 x 4.1 cm and 6.2 x 2.8 cm |
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| Viewed: |
37804 Time(s) |
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| Description: |
Koroit, Queensland, Australia
6.8 x 4.1 cm and 6.2 x 2.8 cm |
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| Viewed: |
37783 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: May 12, 2013 00:12 Post subject: Re: Don Lum Collection |
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Specimens from Australia. Pineapple and Manganocalcite.
Excerpt from Opals, by Fred Ward, manuscript proofread by John S. White:
Pineapples are pseudomorphs. For years mineralogists thought the opal had supplanted a cluster of glauberite. Now some researchers believe the original crystals were ikaite, which were replaced by calcite, which was finally replaced by opal.
| Description: |
Opal pseudomorph after Ikaite
White Chalk Cliffs, New South Wales, Australia
7.0 x 6.7 x 4.2 cm
ex-Jim Clark |
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| Viewed: |
37598 Time(s) |
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| Description: |
Opal pseudomorph after Ikaite
White Chalk Cliffs, New South Wales, Australia
7.0 x 6.7 x 4.2 cm
ex-Jim Clark |
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| Viewed: |
37562 Time(s) |
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| Description: |
Opal pseudomorph after Ikaite
White Chalk Cliffs, New South Wales, Australia
7.0 x 6.7 x 4.2 cm
ex-Jim Clark |
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| Viewed: |
37592 Time(s) |
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| Description: |
Calcite (manganoan)
Broken Hill Mine, New South Wales, Australia
14 x 8.2 x 6 cm
ex-Bill Rudner |
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| Viewed: |
37603 Time(s) |
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| Description: |
Calcite (manganoan)
Broken Hill Mine, New South Wales, Australia
14 x 8.2 x 6 cm
ex-Bill Rudner |
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| Viewed: |
37662 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: May 12, 2013 18:06 Post subject: Re: Don Lum Collection |
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Opal var Shell Opal
Belemnite
Yowah Nut
| Description: |
Opal var Shell Opal
Australia
11 x 7.5 cm
Belemnite |
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| Viewed: |
37493 Time(s) |
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| Description: |
Opal var Shell Opal
Australia
11 x 7.5 cm
Belemnite |
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37501 Time(s) |
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| Description: |
Opal var Shell Opal
Australia
11 x 7.5 cm
Belemnite |
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37496 Time(s) |
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| Description: |
Opal
Yowah, Queensland, Australia
6.5 x 4 cm
Yowah Nut |
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37437 Time(s) |
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| Description: |
Opal
Yowah, Queensland, Australia
6.5 x 4 cm
Yowah Nut |
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37482 Time(s) |
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| Description: |
Opal
Yowah, Queensland, Australia
6.5 x 3.5 cm
Yowah Nut |
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| Viewed: |
37519 Time(s) |
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| Description: |
Opal
Yowah, Queensland, Australia
6.5 x 3.5 cm
Yowah Nut |
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| Viewed: |
37486 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2243
Location: Oklahoma
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| Posted: May 13, 2013 09:26 Post subject: Re: Don Lum Collection |
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Don - the opal from Koroit (IMG_0297.JPG) is beautiful. I've never seen anything like it before.
Michael
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: May 13, 2013 09:59 Post subject: Re: Don Lum Collection |
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| crosstimber wrote: | Don - the opal from Koroit (IMG_0297.JPG) is beautiful. I've never seen anything like it before.
Michael |
Thank you, Michael. They are unique I believe.
Regards,
Don
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: May 14, 2013 12:52 Post subject: Re: Don Lum Collection |
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Specimens from Australia
| Description: |
Azurite
Broken Hill Mine, New South Wales, Australia
1.6 x 1.5 cm |
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| Viewed: |
36114 Time(s) |
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| Description: |
Azurite
Broken Hill Mine, New South Wales, Australia
1.6 x 1.5 cm |
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| Viewed: |
36147 Time(s) |
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| Description: |
Opal
Quilpie, Queensland, Australia
4.2 x 3.9 cm
Boulder Opal |
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| Viewed: |
36105 Time(s) |
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| Description: |
Opal
Quilpie, Queensland, Australia
4.2 x 3.9 cm
Boulder Opal |
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36107 Time(s) |
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| Description: |
Opal
Quilpie, Queensland, Australia
4.2 x 3.9 cm |
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| Viewed: |
36148 Time(s) |
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| Description: |
Azurite
Malbunka Copper Mine, Areyonga, Northern Territory, Australia
12 x 8.5 cm
Azurite Sun |
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| Viewed: |
36213 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: May 15, 2013 17:15 Post subject: Re: Don Lum Collection |
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Agatized Coral
| Description: |
Quartz (variety Agate)
Withlacoochee River, Georgia, USA
31.8 x 26.7 cm
Withlacoochee Agatized Coral |
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| Viewed: |
36159 Time(s) |
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| Description: |
Quartz (variety Agate)
Withlacoochee River, Georgia, USA
31.8 x 26.7 cm
Withlacoochee Agatized Coral |
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| Viewed: |
36106 Time(s) |
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| Description: |
Quartz (variety Agate)
Withlacoochee River, Georgia, USA
31.8 x 16.5 cm
Withlacoochee Agatized Coral |
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| Viewed: |
36102 Time(s) |
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| Description: |
Quartz (variety Agate)
Withlacoochee River, Georgia, USA
31.8 x 16.5 cm
Withlacoochee Agatized Coral |
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| Viewed: |
36113 Time(s) |
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| Description: |
Quartz (variety Agate)
Withlacoochee River, Georgia, USA
31.8 x 16.5 cm
Withlacoochee Agatized Coral |
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| Viewed: |
36143 Time(s) |
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| Description: |
Quartz (variety Agate)
Withlacoochee River, Georgia, USA
29.2 x 17.8 cm
Withlacoochee Agatized Coral |
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| Viewed: |
36087 Time(s) |
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| Description: |
Quartz (variety Agate)
Withlacoochee River, Georgia, USA
29.2 x 17.8 cm
Withlacoochee Agatized Coral |
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| Viewed: |
36141 Time(s) |
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| Description: |
Quartz (variety Agate)
Withlacoochee River, Georgia, USA
29.2 x 17.8 cm
Withlacoochee Agatized Coral |
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| Viewed: |
36143 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: 2919
Location: Arkansas
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| Posted: May 16, 2013 16:53 Post subject: Re: Don Lum Collection |
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Thank you, Pierre. Hello to Rianna.
Best wishes,
Don
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: May 16, 2013 17:15 Post subject: Re: Don Lum Collection |
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Collection specimens
| Description: |
Beryl, Quartz
New Hampshire, USA
17.5 x 14.5 cm
Repaired |
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| Viewed: |
36022 Time(s) |
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| Description: |
Olmiite, Calcite
N'Chwaning II Mine, Kalahari Manganese Fields, South Africa
4.2 x 3.3 cm |
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| Viewed: |
36025 Time(s) |
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| Description: |
Tourmaline, Quartz
Sapo Mine, Conselheiro Pena, Doce Valley, Minas Gerais, Brazil
3.6 x 3.3 cm |
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| Viewed: |
36043 Time(s) |
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| Description: |
Rhodochrosite
Wutong Mine, Liubao Wuzhou, Guangxi Zhuang. A.R., China
4 x 3.5 cm |
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| Viewed: |
36037 Time(s) |
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| Description: |
Anglesite, Galena
Touissit, Oujda-Angad Province, Morrocco
3.5 x 3 cm
ex-Marty Lewaday |
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| Viewed: |
36012 Time(s) |
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| Description: |
Gypsum
Red River Floodway, Winnepeg, Manitoba, Canada
3.9 x 3.5 cm
Gem Cluster
ex- Belsky |
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| Viewed: |
36032 Time(s) |
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| Description: |
Rhodochrosite, Fluorite, Fluorapatite, Pyrite, Quartz
Sweet Home Mine, Steve's Pocket, Colorado, USA
3.5 x 3.1 cm |
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| Viewed: |
36017 Time(s) |
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| Description: |
Rhodochrosite, Fluorite, Fluorapatite, Pyrite, Quartz
Sweet Home Mine, Steve's Pocket, Colorado, USA
3.5 x 3.1 cm |
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| Viewed: |
36008 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: May 16, 2013 18:09 Post subject: Re: Don Lum Collection |
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Collection Specimens
| Description: |
Ettringite
N'Chwaning Mine, Kalahari Manganese Fields, South Africa
3.1 x 1.8 cm
ex-Willy Israel |
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| Viewed: |
35998 Time(s) |
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| Description: |
Benitoite, Neptunite
Benitoite Gem Mine, San Benito, California, USA
3.9 x 2.4 cm |
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| Viewed: |
36058 Time(s) |
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| Description: |
Topaz
Katlang, Mardan District, Khyber, Pakhtunkhwa, Pakistan
4.3 x 3.6 cm
Pink Topaz on Matrix
ex-Obodda |
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| Viewed: |
36077 Time(s) |
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| Description: |
Diopside
800 foot Level, Karo Mine, Merelani Hills, Arusha, Tanzania
3.0 x 0.9 cm |
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| Viewed: |
36004 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: May 17, 2013 00:23 Post subject: Re: Don Lum Collection |
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Collection specimens
| Description: |
Rhodochrosite, Pyrite
Wutong Mine, Liubao Wuzhou, Guangxi Zhuang. A.R., China
4.0 x 4.2 cm |
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| Viewed: |
36021 Time(s) |
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| Description: |
Fluorite, Smoky Quartz, Adularia
Argentière Glacier, Mont Blanc, Chamonix, France
7.2 x 5.2 cm |
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| Viewed: |
35988 Time(s) |
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| Description: |
Fluorite, Smoky Quartz, Adularia
Argentière Glacier, Mont Blanc, Chamonix, France
7.2 x 5.2 cm |
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| Viewed: |
35968 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: May 17, 2013 16:54 Post subject: Re: Don Lum Collection |
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Collection Specimens
| Description: |
Topaz
Ghundao Hill, Katlang, Mardan, Northwest Frontier Province, Pakistan
9 x 7.7 cm
Topaz on matrix |
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| Viewed: |
35906 Time(s) |
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| Description: |
Aquamarine
Shigar Valley, Skardu District, Haramosh Mountains, Gilgit, Pakistan
10.3 x 1.9 cm |
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| Viewed: |
35860 Time(s) |
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| Description: |
Fluorite, Smoky Quartz
Pointe Kurtz, Argentière Glacier, Mont Blanc, Chamonix, France
9.0 x 6 cm |
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| Viewed: |
35821 Time(s) |
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| Description: |
Fluorite, Smoky Quartz
Pointe Kurtz, Argentière Glacier, Mont Blanc, Chamonix, France
9.0 x 6 cm |
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| Viewed: |
35836 Time(s) |
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| Description: |
Fluorite
Chamar Bakhoor, Nagar, Hunza Valley, Pakistan
6 x 4.5 cm |
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| Viewed: |
35820 Time(s) |
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| Description: |
Fluorite
Chamar Bakhoor, Nagar, Hunza Valley, Pakistan
6 x 4.5 cm |
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| Viewed: |
37061 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: May 19, 2013 00:24 Post subject: Re: Don Lum Collection |
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Collection specimens
| Description: |
Zircon
Stjernsund, Seiland Island, Alta, Finnmark, Norway
3.7 x 2.5 cm
ex-Gerald Clark |
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| Viewed: |
35791 Time(s) |
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| Description: |
Zircon
Stjernsund, Seiland Island, Alta, Finnmark, Norway
3.7 x 2.5 cm
ex-Gerald Clark |
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| Viewed: |
35756 Time(s) |
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| Description: |
Topaz
Zacatecas, Mexico
4.2 x 3.7 cm
Pink Topaz |
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| Viewed: |
35737 Time(s) |
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| Description: |
Topaz
Zacatecas, Mexico
4.2 x 3.7 cm
Pink Topaz |
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| Viewed: |
35770 Time(s) |
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| Description: |
Fluorapatite
Ipira, Bahia, Brazil
3.6 x 1.5 cm |
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| Viewed: |
35767 Time(s) |
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| Description: |
Beryl (var red Beryl)
Violet Claims, Harris Claim, Beaver County, Wah Wah Mountains, Utah, USA
4 x 3 cm |
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| Viewed: |
35731 Time(s) |
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| Description: |
Beryl (var red Beryl)
Violet Claims, Harris Claim, Beaver County, Wah Wah Mountains, Utah, USA
4 x 3 cm |
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| Viewed: |
35783 Time(s) |
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| Description: |
Quartz
Chapadinha Mine, Coronel Murta, Minas Gerais, Brazil
3.3 x 3.3 cm
Rose Quartz |
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| Viewed: |
35840 Time(s) |
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