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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Oct 23, 2012 21:47 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Part of the mineral forming environments exhibit is an extensive display of greisen and hydrothermal vein minerals. At the end of the isle are two cases of large to extremely large specimens.
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Large greisen and hydrothermal vein minerals:Baryte, Calcite, Stibnite, Amethyst, and more. |
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Large greisen and hydrothermal vein minerals: Huebnerite, calcite, scheelite, pyrite, and more |
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Danburite Aurora Mine, Charcas, San Luis Potosi, Mexico (immense) |
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Calcite Charcas, San Luis Potosi, Mexico large cabinet one of my favorite calcites |
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Baryte Baia Sprie, Maramures, Romania cabinet |
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Baryte Annaberg, Upper Saxony, Germany large cabinet |
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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Oct 24, 2012 20:48 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Here are a few more hydrothermal minerals from the mineral forming environments exhibit. These are from North America.
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Fluorite Grand Forks, British Columbia, Canada and Amethyst Creede, Colorado |
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Gold in quartz O'Brien gold mine, Kewagama, Quebec, Canada cabinet |
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Silver wires Burke, Idaho cabinet |
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Covellite Butte, Montana cabinet |
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Quartz Idarado mine, Ouray, Colorado Rhodochrosite Sunnyside Mine, Silverton, Colorado |
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Pyrrhotite Santa Eulalia District, Chihuahua, Mexico cabinet |
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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Oct 26, 2012 19:07 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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A few more hydrothermal vein minerals; this time from non-North American localities:
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Baryte Julcani, Huancavelica, Peru
Stibnite Ichinokawa, Iyo, Japan |
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Rhodochrosite Pasto Bueno, Ancash, Peru and Uchuchaqua Mine, Ancash, Peru |
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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Oct 31, 2012 22:23 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Celebration of Diamonds: The A. E. Seaman Mineral Museum Society hosted its 16th annual fundraiser event for the A. E. Seaman Mineral Museum on Saturday Oct. 20 in the lovely ballroom in the Memorial Union Building on the campus of Michigan Technological University. Approximately 60 people attended.
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Table decorated and ready for guests. Each guest received two small diamonds at their place setting! |
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A glimpse of the ballroom as guests arrived. At left is curator and professor Dr. George Robinson. |
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George Robinson and Monica Rovano played the piano. Here, Monica is just finishing singing a great rendition of "Diamonds are a Girl's Best Friend" |
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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Nov 02, 2012 21:39 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Last year's winner of the Charles A. Salotti Earth Science Education award was Tony Nikischer. He was unable to attend last year's Ruby Gala, but he did attend this year's celebration, received his award, and gave an excellent short talk about diamonds- the theme of the celebration.
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during his presentation on diamonds... |
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Tony with his award. Congratulations! |
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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Nov 05, 2012 21:54 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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The winner of the 2012 Charles A.Salotti Earth Science Education award is Dr. Joanne Kluessendorf, director of the Weis Earth Science Museum in Menasha, Wisconsin. Dr. Kluessondorf's involvement with the museum goes back to its very beginning, and played a major role in the musem's planning, development, exhibits, programming, and ultimately to its success and growth. Her colleagues say she is "an inspiration to all who know her." Congratulations to Dr. Kluessendorf.
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Dr. Joanne Kluessendorf (left) receiving her award from Joanie Salotti, daugher of the late Dr. Charles A. Salotti. |
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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Mar 03, 2013 15:41 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Sorry for the long delay in posting new updates on the museum. My teaching load was keeping pretty busy for the past many months. The museum has not stopped its projects, however. Here is a lovely wurtzite the museum was able to acquire with the assistance of friends with sharp eyes who were in Tucson this year.
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Wurtzite Merelani, Arusha Region, Tanzania 5.5x4.3x2.2 cm |
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Wurtzite Merelani, Arusha Region, Tanzania 5.5x4.3x2.2 cm (close up; approx. 1.5 cm field of view) |
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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Mar 10, 2013 20:33 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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The museum has a reasonable collection of antique scientific instruments. One of my favorites is this relatively large two-circle optical goniometer.
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Roger Warin

Joined: 23 Jan 2013
Posts: 1242



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Posted: Mar 11, 2013 04:46 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Excellent goniometer. It’s a Stoe, from Heidelberg. Early 20th century.
What are saying labels?
Thank you for sharing.
Roger.
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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Mar 11, 2013 18:48 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Roger,
One label says "Two Circle Reflecting Goniometer, P. Stoe, Heidelberg, Germany"
and has a number that seems to be (D 152), I'll have to check.
The other label says "These instruments are Goniometers. They were used to measure the angle between crystal faces which were important data in mineral identification."
Back in 1983 we held a several-day workshop at the museum on Goniometry led by Pete Richards. It was great fun. No time to practice since then though.
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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Mar 11, 2013 18:56 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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This fine hand-size group of elongated copper crystals (probably twinned at the upper left) was donated by Art Moretta, and is on display in the entrance exhibits.
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Copper Lake Superior Copper District, Michigan cabinet |
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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Mar 12, 2013 20:00 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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The Upper Peninsula of Michigan hosts some amazingly fine shigaite crystals. These are from the Cannon mine, Stambaugh, Michigan.
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Shigaite Cannon mine, Stambaugh, Michigan. cabinet-size The largest crystals approach a centimeter across. |
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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Mar 13, 2013 09:16 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Here are some interesting amygdules in basalt from the Lake Superior Copper District in
the museum's collection.
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Thomsonite in basalt Grand Marais, Minnesota 8 cm wide amygdule |
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Quartz variety agate in basalt near Manitou Island, Keweenaw Co., Michigan 15 cm wide collected in 2003 |
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Pumpelleyite variety chlorastrolite Northwestern Mine, Keweenaw Co., Michigan 12 cm wide |
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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Mar 13, 2013 14:27 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Another very interesting amygdule-
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Prehnite with Copper Osceola Mine, Houghton Co., Michigan 10 cm wide |
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John Jaszczak

Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI



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Posted: Mar 13, 2013 21:44 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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I just love polymorphs. And carbon.
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Graphite and Diamond part of the new educational exhibits |
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