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Roger Warin
Joined: 23 Jan 2013
Posts: 1171
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Posted: Dec 04, 2013 17:42 Post subject: Re: Collection of Michael Shaw |
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Wow, I am always surprised by the originality of your photos (or your specimens).
Roger.
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Mike Wood
Joined: 16 Dec 2010
Posts: 456
Location: Northern England
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Posted: Dec 04, 2013 18:35 Post subject: Re: Collection of Michael Shaw |
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I agree. That pyrite concretion at the bottom of the last page (2055 Pyrite concretion.jpg) is fantastic. It reminds me of a planet I've seen on a sci-fi movie sometime, but I just can't remember which film...
Thanks Michael.
Mike
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2060
Location: Oklahoma
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Posted: Dec 05, 2013 09:27 Post subject: Re: Collection of Michael Shaw |
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Thank you Roger. And yes, Mike, every time I look at that concretion I think of a planetary body orbiting somewhere in the galaxy.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2060
Location: Oklahoma
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Posted: Dec 07, 2013 12:14 Post subject: Re: Collection of Michael Shaw |
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With today's post I decided to show a few specimens that I collected back in the early 1960s. Nothing spectacular, just examples of minerals that could be easily obtained at some of the many New England and Canadian localities that were open for collecting at the time.
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Beryl Beryl Pit, Quadeville, Renfrew Co., Ontario, Canada 3.5 x 8.8 cm A 7.0 cm section of hexagonal green beryl with pinkish feldspar and minor black schorl. |
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37544 Time(s) |
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Almandine Green Garnet Mine, Roxbury, Litchfield Co., Connecticut, USA 2.0 cm Sharply-formed brown dodecahedrons in light tan schistose matrix. |
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37597 Time(s) |
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Sodalite Princess Quarry, Dungannon Township, Hastings Co., Ontario, Canada 7.0 x 7.8 cm Massive blue sodalite associated with yellow cancrinite and small grains of black biotite. |
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37609 Time(s) |
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Quartz var. Herkimer Diamond Middleville, Herkimer Co., New York, USA 8.2 x 15.4 cm Two Herkimer Diamond crystals with calcite in a dolostone matrix. |
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37643 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2854
Location: Arkansas
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Posted: Dec 07, 2013 13:15 Post subject: Re: Collection of Michael Shaw |
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Michael, I enjoy looking at your personally collected specimens. I guess the Herkimer Diamond was difficult to get out? :-)
Don
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Joaquin Montoro
Joined: 25 Nov 2010
Posts: 225
Location: Murcia (Spain)
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Posted: Dec 07, 2013 14:06 Post subject: Re: Collection of Michael Shaw |
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That beryl from Renfrew Co. looks like an apatite, common in the area.
_________________ Damnati ad Metalla |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2060
Location: Oklahoma
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Posted: Dec 07, 2013 16:17 Post subject: Re: Collection of Michael Shaw |
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Thanks Don. Yes, the herkimers are in a very hard dolostone. It takes a lot of work with a heavy sledge. I would have liked to trim that specimen some more, but didn't want to risk the quartz breaking or popping out of the vug.
Joaquin, fluorapatite does occur at the Beryl Pit, but it is not common. The crystal I posted is very typical of the location, embedded in pink feldspar. Check out the Mindat site for this location - https://www.mindat.org/loc-6641.html. Of course beryl is much harder than the fluorapatite, and the latter is often difficult to collect because the crystals are so brittle and fracture easily. In my next post I'll show some apatites from the area.
Michael
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2060
Location: Oklahoma
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Posted: Dec 09, 2013 10:52 Post subject: Re: Collection of Michael Shaw |
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More self collected minerals from the 1960s.
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Fluorapatite Fission Mine, Cardiff Township, Halliburton Co., Ontario, Canada 6.7 x 8.4 cm A crystal of brown fluorapatite embedded in colorless calcite with purple fluorite. |
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37468 Time(s) |
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Autunite Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA 5.1 x 7.5 cm Bright yellow crusts and lustrous platy micro-crystals of autunite on brownish feldspar with minor black uraninite. |
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37487 Time(s) |
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Gummite Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA 4.0 x 4.3 cm |
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37474 Time(s) |
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Uraninite Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA 5.0 x 7.5 cm Black uraninite and minor yellow autunite on a light-colored feldspar matrix. |
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37593 Time(s) |
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Uraninite Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA 5.0 x 7.5 cm Same specimen as above under SW UV light. |
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37586 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2060
Location: Oklahoma
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Posted: Dec 11, 2013 09:52 Post subject: Re: Collection of Michael Shaw |
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More self collected minerals.
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Wulfenite Manhan Lead Mine, Loudville, Hampshire Co., Massachusetts, USA 5.0 x 5.5 cm Tabular orange wulfenite crystals to 3 mm on quartz matrix. |
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37389 Time(s) |
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Heterosite Black Mt. Quarry, Rumford, Oxford Co., Maine, USA 2.0 and 2.3 cm |
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37357 Time(s) |
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Siderite Roxbury iron Mine, Roxbury, Litchfield Co., Connecticut, USA 9.0 x 11.0 cm Chocolate-brown, crystalline siderite with a slightly irridescent surface and minor quartz. |
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37429 Time(s) |
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Muscovite Branchville Quarry, Branchville, Fairfield Co., Connecticut, USA 5.0 x 7.1 cm Lamellar, rounded muscovite in a quartz and albite matrix. This form of muscovite is sometimes known as "ball peen mica" for obvious reasons. |
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37381 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2060
Location: Oklahoma
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Posted: Dec 14, 2013 12:41 Post subject: Re: Collection of Michael Shaw |
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The last post of self collected minerals before moving on to other parts of the world.
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Gahnite Mt. Peak Mine, Charlemont, Franklin Co., Massachusetts 5.5 x 6.1 cm Black octahedral crystals to 5 mm on edge embedded in an iron-rich matrix. |
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37282 Time(s) |
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Lepidolite Mt. Mica, Paris, Oxford Co., Maine 4.0 x 5.3 cm Micaceous lilac-colored lepidolite embedded in white albite var. cleavelandite. |
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37265 Time(s) |
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Calcite Rt. 13 roadcut, Chittenango Falls, Madison Co., New York 4.5 x 5.2 cm Scalenohedral calcite crystals to 1.5 cm on limestone matrix with bladed pale blue celestite. |
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37288 Time(s) |
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Tremolite New England Lime Quarry, Canaan, Litchfield Co., Connecticut 8.8 x 11.2 cm Acicular white tremolite with pyrite in granular orange dolomitic marble. |
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37314 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2060
Location: Oklahoma
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Posted: Dec 16, 2013 10:54 Post subject: Re: Collection of Michael Shaw |
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The next few posts will feature minerals from South Africa. You should feel right at home Pierre. I'll start out with a few thumbnail specimens.
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Sturmanite N'Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 2.1 x 2.2 cm |
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37187 Time(s) |
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Pyrite N'Chwaning Mine, Kuruman, N. Cape Prov., South Africa 2.3 x 3.0 cm |
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37141 Time(s) |
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Hematite N'Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 1.8 x 1.9 cm |
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37204 Time(s) |
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Rhodochrosite N'Chwaning I Mine, Kuruman, N. Cape Prov., South Africa 1.1 x 1.6 cm |
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37208 Time(s) |
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Fluorite Riemvasmaak, Kakamas District, N. Cape Prov., South Africa 2.1 x 2.7 cm |
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37166 Time(s) |
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Roger Warin
Joined: 23 Jan 2013
Posts: 1171
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Posted: Dec 16, 2013 11:02 Post subject: Re: Collection of Michael Shaw |
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Nice minerals from RSA.
Thanks for sharing.
Roger.
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Don Lum
Joined: 03 Sep 2012
Posts: 2854
Location: Arkansas
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Posted: Dec 16, 2013 11:28 Post subject: Re: Collection of Michael Shaw |
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Michael, I really like your Rhodochrosite from the N'Chwaning I Mine. Just beautiful.
Merry Christmas.
Don
_________________ hogwild |
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Pierre Joubert
Joined: 09 Mar 2012
Posts: 1605
Location: Western Cape
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Posted: Dec 16, 2013 15:23 Post subject: Re: Collection of Michael Shaw |
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Hi Michael. I agree with Don; lovely little rhodo. I do have a few mineral friends who are big in KMF mineral specimens. I still have to catch on. I am looking forward to seeing the rest of your RSA specimens. Regards.
_________________ Pierre Joubert
'The tree of silence bears the fruit of peace. ' |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2060
Location: Oklahoma
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Posted: Dec 18, 2013 09:37 Post subject: Re: Collection of Michael Shaw |
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Thanks Roger, Don, and Pierre. I think the KMF has produced some of the most spectacular rhodochrosites of anywhere in world, and with a greater variety of crystal habits. The wheat-sheaf habit with the pale pink central zone seems to be the least common of these.
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Calcite N'Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 3.5 x 7.2 cm Scalenohedral calcite crystals with a reddish-brown hue imparted by hematite. |
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36940 Time(s) |
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Hydroxyapophyllite N'Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 3.5 x 4.4 cm Pseudocubic hydroxyapophyllite crystals with lightly striated faces and truncated corners. |
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36919 Time(s) |
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Calcite N'Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 6.5 x 9.0 cm Cone-shaped groups of pinkish-tan calcite. Exhibits intense red fluorescence under SW UV light. |
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36934 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2060
Location: Oklahoma
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Posted: Dec 20, 2013 12:16 Post subject: Re: Collection of Michael Shaw |
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More from N'Chwaning Mines.
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Gaudefroyite N'Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 7.1 x 10.5 cm Lustrous black crystals of gaudefroyite covering a druse of dark red andradite crystals. |
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36825 Time(s) |
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Gaudefroyite N'Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 7.1 x 10.5 cm Closer view of above specimen. |
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36834 Time(s) |
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Andradite N'Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 4.2 x 5.6 cm A flat plate of dark red andradite crystals to 0.8 cm covering a mixture of massive andradite with embedded metallic black hematite crystals to 2 mm. |
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36841 Time(s) |
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Inesite N'Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 7.0 x 9.5 cm Acicular salmon-colored inesite crystals on a vuggy brown matrix with a few colorless micro-crystals of apophyllite on the bottom of the specimen. |
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36827 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2060
Location: Oklahoma
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Posted: Dec 23, 2013 08:42 Post subject: Re: Collection of Michael Shaw |
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More from the N'Chwaning Mine.
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Hausmannite N'Chwaning Mine, Kuruman, N. Cape Prov., South Africa 2.6 x 3.7 cm An intergrown group of lustrous black hausmannite crystals to 2 cm on edge. |
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36623 Time(s) |
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Olmiite N'Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 4.0 x 6.0 cm Drusy, colorless calcite with a 1.9 cm group of lustrous, peach-colored olmiite and small white spherical masses of oyelite. |
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36626 Time(s) |
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Bultfonteinite N'Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 5.5 x 10.0 cm, FOV=5.0 cm Multiple bowtie groups of white, acicular bulfonteinite crystals with blocky, beige-colored olmiite crystals on dark matrix. |
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36602 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2060
Location: Oklahoma
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Posted: Dec 27, 2013 11:00 Post subject: Re: Collection of Michael Shaw |
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The last of our specimens from the Kalihari Manganese Field.
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Hematite N'Chwaning II Mine, Kuruman, N. Cape Province, South Africa 3.9 x 4.0 cm Lustrous metallic black hematite crystals with a small colorless calcite rhomb. |
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36518 Time(s) |
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Hematite N'Chwaning II Mine, Kuruman, N. Cape Province, South Africa 3.9 x 4.0 cm |
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36509 Time(s) |
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Kutnohorite N'Chwaning II Mine, Kuruman, N. Cape Province, South Africa 4.0 x 6.0 cm Pale pink mushroom-shaped aggregate of fibrous kutnohorite crystals. |
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36555 Time(s) |
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Calcite Wessels Mine, Hotazel, N. Cape Province, South Africa 8.2 x 9.0 cm Fan-shaped groups of pink calcite that exhibit intense red fluorescece under SW UV light. |
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36515 Time(s) |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: Dec 27, 2013 13:45 Post subject: Re: Collection of Michael Shaw |
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1755 Kutnohorite.jpg is a very cool specimen. Thanks for sharing!
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2060
Location: Oklahoma
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Posted: Dec 30, 2013 10:01 Post subject: Re: Collection of Michael Shaw |
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GneissWare wrote: | 1755 Kutnohorite.jpg is a very cool specimen. Thanks for sharing! |
Thanks Bob, glad you enjoyed the kutnohorite. It is one of my favorite N'Chwaning pieces.
Now for a few odds and ends from other locations throughout South Africa.
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Corundum Zoutpansburg, Gauteng Province, South Africa 3.2 x 6.5 cm A doubly-terminated hexagonal gray corundum crystal with pinacoid terminations. |
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36309 Time(s) |
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Quartz var. amethyst Boekenhoutshoek, Mkobola Dist., Mpummalanga Prov., South Africa 5.5 x 6.5 cm A small group of lilac-colored amethyst crystals with prism faces overgrown by small amethyst crystals, locally known as “cactus quartz” |
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36348 Time(s) |
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Quartz with papagoite inclusions Messina Mine, Limpopo Prov., South Africa 3.0 x 6.8 cm Turquoise blue papagoite inclusions in quartz associated with drusy green epidote. |
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36331 Time(s) |
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Quartz Messina Mine, Limpopo Prov., South Africa 6.0 x 7.3 cm Doubly-terminated quartz crystals colored reddish-brown by hematite inclusions with small black hematite crystals coating several prism faces. |
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36328 Time(s) |
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Siderite ps. calcite Broken Hill Mine, Aggeneys, N. Cape Prov., South Africa 4.3 x 5.1 cm A barrel-shaped, hollow, brown prism of siderite/sphalerite pseudomorphing calcite. |
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36344 Time(s) |
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