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Joseph DOliveira
Joined: 29 Jan 2012
Posts: 294
Location: Hanmer, Ontario
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 Posted: Jan 25, 2014 20:23 Post subject: Re: Collection of Michael Shaw |
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Beautiful specimens with complimentary photography, very nice collection Michael.
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Joseph D'Oliveira
Hanmer, Ontario
Canada |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2066
Location: Oklahoma
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| Posted: Jan 27, 2014 11:26 Post subject: Re: Collection of Michael Shaw |
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Thanks Joseph.
The next few posts will feature specimens from the Democratic Republic of the Congo and it's mineral-rich Katanga Province.
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Cuprite
Mashamba West Mine, Kolwezi, Katanga Prov., DR Congo
3.0 x 5.2 cm
Lustrous, dark red octahedral cuprite crystals with minor plancheite and malachite. |
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31568 Time(s) |
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| Description: |
Heterogenite
Star of Congo Mine, Lubumbashi, Katanga Prov., DR Congo
4.0 x 5.5 cm
Dark blue-green botryoidal crusts of heterogenite on chrysocolla. Acquired from Gilbert Gauthier in 2001. |
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31523 Time(s) |
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| Description: |
Cornetite
Star of Congo Mine, Lubumbashi, Katanga Prov., DR Congo
4.3 x 7.4 cm
Dark blue radial crystal groups of cornetite with malachite. |
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31501 Time(s) |
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Roger Warin
Joined: 23 Jan 2013
Posts: 1175
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| Posted: Jan 27, 2014 12:07 Post subject: Re: Collection of Michael Shaw |
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very nice specimens that I know well
Roger.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2066
Location: Oklahoma
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| Posted: Jan 29, 2014 10:12 Post subject: Re: Collection of Michael Shaw |
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Thanks Roger. I guess you are a fan of the Copper Crescent?
Continuing with the Congo. Various forms of malachite.
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Malachite ps. after Baryte
Mashamba West Mine, Kolwezi, Katanga Prov., DR Congo
5.0 x 5.3 cm
Velvety malachite replacing crystals of bladed Baryte. |
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31401 Time(s) |
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| Description: |
Malachite
Mashamba West Mine, Kolwezi, Katanga Prov., DR Congo
5.6 x 6.8 cm
Stalactitic forms coated with dark green malachite microcrystals. |
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31412 Time(s) |
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| Description: |
Malachite
Kiswishi Mine, Lubumbashi, Katanga Prov., DR Congo
4.5 x 7.0 cm
Velvety green chatoyant crystal sheaves. |
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31424 Time(s) |
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| Description: |
Malachite
Mashamba West Mine, Kolwezi, Katanga Prov., DR Congo
4.5 x 6.0 cm
Clusters of dark green primary malachite. |
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31428 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2066
Location: Oklahoma
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| Posted: Jan 31, 2014 12:52 Post subject: Re: Collection of Michael Shaw |
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Continuing with minerals from the Democratic Republic of Congo.
| Description: |
Pseudomalachite
Star of Congo Mine, Lubumbashi, Katanga Prov., DR Congo
7.4 x 11.0 cm
Bluish-green botryoidal pseudomalachite overlaying massive black tenorite. |
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31360 Time(s) |
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| Description: |
Baryte
Shangulowé Mine, Kambove District, Katanga Prov., DR Congo
3.7 x 4.0 cm
Parallel growth of colorless doubly terminated Baryte crystals tinted with
inclusions of malachite. |
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31360 Time(s) |
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| Description: |
Metatorbernite
Musonoi Extension, Kolwezi, Katanga Prov., DR Congo
5.0 x 9.0 cm
Emerald-green bladed crystals of metatorbernite covering a gray matrix. |
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31361 Time(s) |
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| Description: |
Carrollite
Kamoya South II Mine, Kambove Dist., Katanga Prov., DR Congo
4,2 x 5.3 cm.
Lustrous, sharp metallic carrollite crystal measuring 1.2 cm. frozen in a calcite matrix. Found in 2001 and acquired from Gilbert Gauthier. |
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31347 Time(s) |
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Dioptase
Tantara Mine, Shinkolobwe, Katanga Prov., DR Congo
4.8 x 6.3 cm
Emerald-green crystals of dioptase on a chrysocolla matrix. |
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31334 Time(s) |
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Roger Warin
Joined: 23 Jan 2013
Posts: 1175
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| Posted: Jan 31, 2014 13:44 Post subject: Re: Collection of Michael Shaw |
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very nice carrollite.
Roger.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2066
Location: Oklahoma
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| Posted: Feb 03, 2014 16:23 Post subject: Re: Collection of Michael Shaw |
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| Roger Warin wrote: | very nice carrollite.
Roger. |
Thanks Roger. The most recent issue of Mineralogical Record was accompanied by a DVD of the Dallas Mineral Symposium, and one of the speakers was Brice Gobin, who talked about some of his experiences acquiring carrollites in the Congo. Scary stuff.
For today's post I would like to show a few of our specimens from Germany.
| Description: |
Manganite
Ilfeld, Nordhausen, Harz Mts., Thüringia, Germany
4.8 x 5.9 cm
Lustrous, black, prismatic managanite crystals with typical longitudinal striations and minor calcite. |
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31250 Time(s) |
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| Description: |
Baryte
Dreislar Mine, Dreislar, N. Rhine-Westphalia, Germany
6.4 x 7.0 cm
Cream-colored,bladed Baryte crystals to sprinkled with small brassy chalcopyrite crystals. |
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31205 Time(s) |
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| Description: |
Strunzite
Hagendorf South pegmatite, Waidhaus, Vohenstrauß, Oberpfälzer Wald, Bavaria, Germany
3.5 x 3.6 cm
Straw-colored acicular strunzite crystals lining cavities with black rockbridgeite and orange laueite. |
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31213 Time(s) |
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Roger Warin
Joined: 23 Jan 2013
Posts: 1175
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| Posted: Feb 03, 2014 17:13 Post subject: Re: Collection of Michael Shaw |
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Hello Michael,
Yes I know that specialist. In fact I knew him as a boy, and his brother too when I was buying minerals from his parents.
Bravo, famous manganite. In Munich I had the opportunity to purchase a beautiful manganite from Ilfeld in the 80s, but I hesitated and I have not had a new opportunity.
Roger.
PS Do you know the paper of my friend Dr J. Lhoest in M.R.?
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2066
Location: Oklahoma
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| Posted: Feb 03, 2014 20:41 Post subject: Re: Collection of Michael Shaw |
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| Roger Warin wrote: | Hello Michael,
Yes I know that specialist. In fact I knew him boy, and his brother too when I was buying minerals to his parents.
Bravo, famous manganite. In Munich I had the opportunity to purchase a beautiful manganite from Ilfeld in the 80s, but I hesitated and I have not had a new opportunity.
Roger.
PS Do you know the paper of my friend Dr J. Lhoest in M.R.? |
Roger,
Yes, I have read both articles in M.R. by your friend. Those articles about famous localities are why I am a subscriber.
Michael
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2066
Location: Oklahoma
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| Posted: Feb 05, 2014 10:18 Post subject: Re: Collection of Michael Shaw |
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Continuing with minerals from Germany.
| Description: |
Pyromorphite
Mercur Mine, Bad Ems, Rhineland-Palatinate, Germany
4.2 x 5.3 cm
Barrel-shaped pyromorphite crystals on a crystallized and massive pyromorphite matrix. |
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30960 Time(s) |
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| Description: |
Leonite ps. after picromerite
Wintershall Potash Works, Heringen, Hesse, Germany
8.0 x 8.0 cm
Opaque white leonite crystals on a pinkish halite matrix. The leonite crystals are pseudomorphs of picromerite, which is colorless when fresh, but quickly alters white leonite by dehydration. |
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30842 Time(s) |
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| Description: |
Pyromorphite
Friedrichssegen Mine, Frücht, Bad Ems Dist., Rhineland-Palatinate, Germany
2.5 x 3.5 cm
A stacked group of slightly offset, light brown pyromorphite crystals. |
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30851 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2066
Location: Oklahoma
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| Posted: Feb 18, 2014 17:43 Post subject: Re: Collection of Michael Shaw |
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Continuing with minerals from Germany in our collection.
| Description: |
Fluorite
Frohnau, Annaberg-Buchholz, Erzgebirge, Saxony, Germany
5.5 x 8.0 cm
Cubic yellow fluorite crystals with zones of bluish purple on the edges. |
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| Viewed: |
30878 Time(s) |
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| Description: |
Baryte
Pohla, Schwarzenberg District, Erzgebirge, Saxony, Germany
7.3 z 9.0 cm
Flat triangular plate of country rock covered with lustrous, gemmy sherry-colored, Baryte crystals to 2 cm. |
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30590 Time(s) |
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| Description: |
Gypsum
Dämmelwald clay pit, Wiesloch, Baden-Württemberg, Germany
6.1 x 9.0 cm
Two intersecting transparent gypsum crystals which exhibit green fluorescence under SW UV. |
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30616 Time(s) |
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| Description: |
Gypsum
Thomas Munzer Shaft, Sangerhausen, Saxony-Anhalt, Germany
7.0 x 10.3 cm
A group of reddish-brown, twinned gypsum crystals to 3 cm. |
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30618 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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| Posted: Feb 18, 2014 18:06 Post subject: Re: Collection of Michael Shaw |
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Michael, I really like the zoning on your fluorite from Saxony. When I saw it my first thought was that it was from Cave-in-Rock.
Don
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4102
Location: Germany
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| Posted: Feb 19, 2014 11:15 Post subject: Re: Collection of Michael Shaw |
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Thank you Michael for showing some really nice samples of German minerals!
And Don, you're right: Looks similiar to Cave-In-Rock, but the zoning is also typical for Saxon fluorites. For example, look at this crystals from another mine in Annaberg District (especially the close-up picture):
https://www.mineral-forum.com/message-board/viewtopic.php?p=28480#28480
Tobi
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2066
Location: Oklahoma
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| Posted: Feb 20, 2014 15:53 Post subject: Re: Collection of Michael Shaw |
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| Tobi wrote: | Thank you Michael for showing some really nice samples of German minerals!
Tobi |
Thank you Tobi. Our collection of minerals from Germany is quite small; I'd like to focus more on your country in the future.
Michael
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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| Posted: Feb 20, 2014 16:51 Post subject: Re: Collection of Michael Shaw |
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Thank you, Tobi. I went to the link you sent and really enjoyed your specimens.
Regards,
Don
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2066
Location: Oklahoma
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| Posted: Feb 21, 2014 13:14 Post subject: Re: Collection of Michael Shaw |
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A few more from Germany.
| Description: |
Galena
Ramsbeck, Sauerland, North Rhine-Westphalia, Germany
5.3 x 7.3 cm
Semi-lustrous lead-gray cubic crystals of galena to 1.7 cm on edge. |
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| Viewed: |
30770 Time(s) |
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| Description: |
Halite
Wintershall Potash Works, Heringen, Werra Valley, Hesse, Germany,
10.0 x 15.6 cm
Colorless halite cubes to 3.1 cm on edge scattered over a pink halite matrix. Collected in 1966. |
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30367 Time(s) |
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| Description: |
Galena
Neudorf, Harzgerode, Saxony-Anhalt, Germany
5.8 x 6.1 cm
Lead-gray modified galena crystals to 2.0 cm with minor crystallized siderite in association. |
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30331 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4102
Location: Germany
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| Posted: Feb 21, 2014 14:09 Post subject: Re: Collection of Michael Shaw |
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Very nice, especially the galena specimens!
Tobi
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2066
Location: Oklahoma
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| Posted: Feb 24, 2014 11:04 Post subject: Re: Collection of Michael Shaw |
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Thanks Tobi. Today's post will finish up our small collection of specimens from Germany
| Description: |
Silver
Pöhla-Tellerhäuser Mine, Block 0985, Pöhla, Erzgebirge, Saxony-Anhalt, Germany
4.2 x 7.4 cm
Dendritic herring-bone silver crystals scattered over a native arsenic matrix. |
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| Viewed: |
30199 Time(s) |
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| Description: |
Aragonite var. "cave pearls"
Röhrig Shaft, Wettelrode, Sangerhausen, Saxony-Anhalt, Germany
8.0 x 10.0 cm
An good example of aragonite "cave pearls" formed as a result of mineralized water dripping from stalactites. |
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30207 Time(s) |
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Silver
Himmelsfurst Mine, Brand-Erbisdorf, Freiberg District, Saxony-Anhalt, Germany
3.0 x 5.5 cm
Ropy native silver wires from a classic German locality. |
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30151 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2856
Location: Arkansas
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| Posted: Feb 24, 2014 13:49 Post subject: Re: Collection of Michael Shaw |
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Michael,
Gwen and I enjoyed meeting you and Laura at Tucson this year.
I really like these last three specimens you posted today especially the aragonite cave pearls.
Don
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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| Posted: Feb 24, 2014 14:21 Post subject: Re: Collection of Michael Shaw |
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| Don Lum wrote: | I really like these last three specimens you posted today especially the aragonite cave pearls.
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Agreed! First of these bird nests I've seen from Germany. Very nice!
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