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A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan
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John Jaszczak




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PostPosted: Dec 11, 2011 21:01    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

Michigan also has some less-well-known mineral occurrences in the Upper Peninsula, including pegmatites and gold deposits.


crockley-Moly.jpg
 Description:
Moybdenite
Crockley pegmatite, Republic, Michigan
cabinet
 Viewed:  31856 Time(s)

crockley-Moly.jpg



MichiganGoldmine.jpg
 Description:
Gold in Quartz
Michigan Gold Mine, Ishpeming, Michigan
small cabinet to miniature
 Viewed:  31822 Time(s)

MichiganGoldmine.jpg


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John Jaszczak




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PostPosted: Dec 13, 2011 21:44    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

Northwestern Ohio (also in the Michigan Basin) has also produced some wonderful
calcite, fluorite, celestine, and sphalerite specimens. Many are quite large.



clay-center.jpg
 Description:
Fluorite, Celestine, Sphalerite, Calcite
White Rock Quarry, Clay Center, Ohio
 Viewed:  31741 Time(s)

clay-center.jpg



clay-center-closeup.jpg
 Description:
Fluorite, Celestine, Sphalerite
White Rock Quarry, Clay Center, Ohio
 Viewed:  31764 Time(s)

clay-center-closeup.jpg


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John Jaszczak




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PostPosted: Dec 14, 2011 21:21    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

Some of the halite specimens from Michigan can be fascinating and spectacular.


halite.jpg
 Description:
Halite
Detroit Salt Mine, Detroit, Michigan
Cabinet
 Viewed:  31744 Time(s)

halite.jpg


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John Jaszczak




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PostPosted: Jan 16, 2012 22:50    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

The curator spent a lot of time over Christmas and New Year's break working on the systematic collection. I always love when George works on the systematic collection, as I never know what surprises I'll find in the cases! The exhibits are not yet done with labeling,
graphics and final specimen placement, but I couldn't wait.

Here are a few cases of oxide minerals.



oxides-1.jpg
 Description:
Oxide exhibit
 Viewed:  31366 Time(s)

oxides-1.jpg



brookite.jpg
 Description:
Brookite
Kharan district, Baluchistan, Pakistan
cabinet
acquired in 2006
 Viewed:  31371 Time(s)

brookite.jpg



oxides-2.jpg
 Description:
Oxide exhibit 2
 Viewed:  31344 Time(s)

oxides-2.jpg



zincite.jpg
 Description:
Zincite
Franklin, Sussex Co., New Jersey
largest crystal 2 cm across (7x4.5x3 cm)
Probably one of approximately 4,600 specimens purchased from Ward & Howell in 1889 for a total of $1612.45.
See The Picking Table (1995) vo. 36 p. 19, or Matrix (1995) vol. 4 p. 55.
 Viewed:  31356 Time(s)

zincite.jpg



rutile-hematite.jpg
 Description:
Rutile epitaxic on Hematite
Novo Horizonte, Bahia, Brazil
cabinet
acquired in 2004
 Viewed:  31365 Time(s)

rutile-hematite.jpg



weill-hematite.jpg
 Description:
Hematite
Kuruman, South Africa
10-1/2x 7 x 4 inches
extremely fine crystal for its (extreme) size. Donated by Marc Weill.
 Viewed:  31374 Time(s)

weill-hematite.jpg


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John Jaszczak




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PostPosted: Jan 21, 2012 17:20    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

Some excellent diopside crystals from the famous DeKalb, New York occurrence.


DeKalb-Diopside.jpg
 Description:
Diopside
old Calvin Mitchell farm occurrence, DeKalb, New York
The crystal lying down at the left is doubly terminated and has epitaxic tremolite.
 Viewed:  31263 Time(s)

DeKalb-Diopside.jpg


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John Jaszczak




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PostPosted: Jan 21, 2012 17:26    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

One of several isles of the systematic minerals gallery. These give a bit of a perspective.


systematic-carb-sulfate-oxide-elements.jpg
 Description:
 Viewed:  31270 Time(s)

systematic-carb-sulfate-oxide-elements.jpg



carbonates.jpg
 Description:
some colorful carbonates
 Viewed:  31288 Time(s)

carbonates.jpg



sulfides.jpg
 Description:
some of the sulfides
 Viewed:  31220 Time(s)

sulfides.jpg


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John Jaszczak




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PostPosted: Jan 24, 2012 23:41    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

Elements-
Many of the elements have been put on exhibit now (excluding gold and silver). Here are a few of my favorites.



antimony.jpg
 Description:
Antimony
Lake George Antimony mine, New Brunswick, Canada.
large cabinet
We've shown this before, but I love seeing it on display again.
 Viewed:  31161 Time(s)

antimony.jpg



graphites.jpg
 Description:
Graphite
Franklin, NJ and Merelani, Tanzania
cabinet
Two of my favorite graphite specimens. Side by side.
 Viewed:  31089 Time(s)

graphites.jpg



franklin-graphite.jpg
 Description:
Spherical Graphite
Franklin, New Jersey
cabinet
This remarkable specimen has spheres of graphite to almost 1 cm across. It is one of the finest such specimens I've seen (and I've looked through the graphite in many of the major museum's in the US and Canada). It is from the E. W. Heinrich collection.
 Viewed:  31089 Time(s)

franklin-graphite.jpg


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Jordi Fabre
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PostPosted: Jan 27, 2012 00:07    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

This Antimony breaks my mind! ;-)
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John Jaszczak




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PostPosted: Jan 31, 2012 21:28    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

In the spirit of the Tucson show theme, here are a few Arizona minerals newly on exhibit...


gr-Linarite.jpg
 Description:
Linarite
Grand Reef Mine, Graham Co., Arizona
hand-size
 Viewed:  30832 Time(s)

gr-Linarite.jpg



msa-Wulfenite.jpg
 Description:
Wulfenite
Mammoth St. Anthony Mine, Tiger, Arizona
cabinet
 Viewed:  30810 Time(s)

msa-Wulfenite.jpg


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John Jaszczak




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PostPosted: Feb 03, 2012 19:37    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

Here are a few miscellaneous goodies from the new systematic exhibit.


rhodonite.jpg
 Description:
Rhodonite
Franklin, New Jersey
cabinet
 Viewed:  30685 Time(s)

rhodonite.jpg



Kainosite-Y.jpg
 Description:
Kainosite-Y
Bicroft Uranium Mine, Bancroft, Ontario, Canada
miniature
a remarkably large crystal
from the collection of Dr. E. W. Heinrich.
 Viewed:  30716 Time(s)

Kainosite-Y.jpg



anglesite.jpg
 Description:
Anglesite on Galena
Touissit, Morocco
cabinet
 Viewed:  30710 Time(s)

anglesite.jpg



barite.jpg
 Description:
Baryte
cabinet
Meikle Mine, Barrick, Nevada, USA
 Viewed:  30701 Time(s)

barite.jpg


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John Jaszczak




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PostPosted: Feb 11, 2012 11:56    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

More developments in the systematic gallery: Feldspars, Quartz and other silicates.


feldspars.jpg
 Description:
Feldspar case
 Viewed:  30542 Time(s)

feldspars.jpg



quartzes.jpg
 Description:
Quartz case
 Viewed:  30531 Time(s)

quartzes.jpg



amethyst.jpg
 Description:
Amethyst
Amatitlan, Guerrero, Mexico
cabinet
 Viewed:  30498 Time(s)

amethyst.jpg



100_3153.JPG
 Description:
Rose Quartz
Lavra da Ilha, Taquaral, Minas Gerais, Brazil
cabinet
 Viewed:  30517 Time(s)

100_3153.JPG



yellow_quartz.jpg
 Description:
yellow-colored quartz
Cleora, Colorado, USA (lost locality)
cabinet
Donated by Donald Gabriel
 Viewed:  30519 Time(s)

yellow_quartz.jpg



herkimer.jpg
 Description:
Quartz (variety Herkimer diamonds)
Middleville, New York, USA
cabinet
Donated by the Seaman Mineral Museum Society
 Viewed:  30509 Time(s)

herkimer.jpg


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John Jaszczak




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PostPosted: Feb 12, 2012 21:18    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

A few miscellaneous silicates...


tanzanite.jpg
 Description:
Zoisite, variety Tanzanite
Merelani district, Tanzania
miniature
 Viewed:  30393 Time(s)

tanzanite.jpg



yugawaralite.jpg
 Description:
Yugawaralite
Toi, Shizuoka, Japan
miniature
 Viewed:  30407 Time(s)

yugawaralite.jpg


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Riccardo Modanesi




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PostPosted: Feb 13, 2012 08:16    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

Hi to everybody!
I saw the graphite specimens from Merelani Tanzania. On the specimen shown on the right side I saw some beautiful and interesting green crystals. What mineral is it? Calcite too or...? I don't think it is just calcite and nothing else! But those crystals are very nice!
Greetings from Italy by Riccardo.

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Hi! I'm a collector of minerals since 1973 and a gemmologist. On Summer I always visit mines and quarries all over Europe looking for minerals! Ok, there is time to tell you much much more! Greetings from Italy by Riccardo.
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John Jaszczak




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PostPosted: Feb 13, 2012 08:28    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

Hi Riccardo,
I'm sorry I forgot to include the details about the Merelani specimen.
The primary mineral of interest is gemmy diopside. You can see a close up of the
diopside crystals on an earlier page of this thread. The white crystals are mesolite with laumontite (verified by Raman and EDS). The pocket that produced these specimens
also contains gem-quality tremolite, pale zoisite, and lovely pale blue apatite; as well as small crystals of pyrite, siderite, chabazite, and gypsum. Surprisingly- no calcite.
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PostPosted: Mar 01, 2012 23:20    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

The color of the carbonate exhibit is just wonderful. It keeps catching my attention.


colorfulcarbonates.jpg
 Description:
Carbonate exhibit
 Viewed:  29911 Time(s)

colorfulcarbonates.jpg



rhodocrosite.jpg
 Description:
Rhodochrosite
N'Chwaning Mine, South Africa
small cabinet
 Viewed:  29887 Time(s)

rhodocrosite.jpg


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PostPosted: Mar 01, 2012 23:25    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

Systematic Specimen Sampling


bastnasite-Ce.jpg
 Description:
Bastnasite-(Ce)
north of Khyber Pass, North-West Frontier Province, Pakistan
small cabinet
 Viewed:  29921 Time(s)

bastnasite-Ce.jpg



beryl.jpg
 Description:
Beryl (var. Aquamarine)
Medina, Minas Gerais, Brazil
cabinet
 Viewed:  29902 Time(s)

beryl.jpg



shattuckite.jpg
 Description:
Shattuckite
Kaokoveld Mine, Namibia
cabinet
 Viewed:  29900 Time(s)

shattuckite.jpg


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PostPosted: Mar 03, 2012 09:53    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

This remarkable Wulfenite will be in one of the Mineral Forming Environment exhibits.


wulfenite.jpg
 Description:
Wulfenite
San Francisco Mine, Sonora, Mexico
large cabinet
 Viewed:  29722 Time(s)

wulfenite.jpg


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PostPosted: Mar 03, 2012 10:08    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

John: The quality of the collection at Michigan Tech continues to overwhelm. I am in awe of this collection as well as the beautiful facility that has been created in which to show it off. Please keep the great images coming.
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PostPosted: Mar 03, 2012 13:42    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

Thank you John. George and Susan are doing an amazing job now of setting up the Mineral Forming Environments gallery. It is going to be really interesting! Here is some of the prep work.


min_form_env.jpg
 Description:
One of four isles of displays to feature mineral forming environments.
 Viewed:  29710 Time(s)

min_form_env.jpg



skarn.jpg
 Description:
An exhibit of preparation on skarn minerals.
 Viewed:  29727 Time(s)

skarn.jpg


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PostPosted: Apr 08, 2012 09:16    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

A wonderful report, thank you! I was really surprised about the beauty- and colourful sulfurs from Michigan:

https://www.mineral-forum.com/message-board/files/large_sulfur_celestine_842.jpg
https://www.mineral-forum.com/message-board/files/sulfur_pair_616.jpg

Never heard of them before. They could be from Sicily, really nice stuff!
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