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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: Nov 28, 2011 22:01    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

Seamanite from the Chicagon Mine, Iron Co., Michigan was named in honor of Professor A. E. Seaman, first curator of the museum. This cabinet specimen is covered by seamanite crystals to several mm long.

(Sorry about having to shoot through the cases with my portable camera; once the museum's photo studio reopens, we'll get some better photos posted. Even better, come and see the specimens in person!)



seamanite.jpg
 Description:
Seamanite
Chicagon Mine, Iron Co., Michigan
 Viewed:  44033 Time(s)

seamanite.jpg


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John Jaszczak




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PostPosted: Nov 28, 2011 22:13    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

I love this specimen of cryptomelane. The spheres to 6mm across are just perfect.


cryptomelane.jpg
 Description:
Cryptomelane with limonite
Ironwood, Michigan
28 x 13 x 9.5 cm
 Viewed:  44084 Time(s)

cryptomelane.jpg


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John Jaszczak




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PostPosted: Nov 29, 2011 20:20    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

These manganoan calcites from the Montreal Mine are wondrous.


small-mn-calcite.jpg
 Description:
manganoan Calcite
Montreal Mine, Montreal, Wisconsin
approximately 6 cm sphere
 Viewed:  43908 Time(s)

small-mn-calcite.jpg



large-Mn-calcite.jpg
 Description:
manganoan Calcite
Montreal Mine, Montreal, Wisconsin
approximately 20 cm sphere
 Viewed:  43930 Time(s)

large-Mn-calcite.jpg


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John Jaszczak




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PostPosted: Nov 30, 2011 22:16    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

This hematite shows some interesting stalactitic morphology.


hematite-ironmountain.jpg
 Description:
Hematite
Iron Mountain, Michigan
 Viewed:  43854 Time(s)

hematite-ironmountain.jpg


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John Jaszczak




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PostPosted: Dec 05, 2011 16:33    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

A few fine mineral specimens from the midwest United States...


Calcite1-a-DM29432sm.jpg
 Description:
Calcite enclosing marcasite-marked phantom
Berry Materials Quarry, North Vernon, Indiana
miniature
Lance T. Hampel donation.
 Viewed:  43678 Time(s)

Calcite1-a-DM29432sm.jpg



Calcite2-DM29442sm.jpg
 Description:
Calcite
Meshberger quarry, Columbus, Indiana
cabinet
Lance T. Hampel donation.
 Viewed:  43687 Time(s)

Calcite2-DM29442sm.jpg



Fluorite-a-DM23920sm.jpg
 Description:
Fluorite
France Stone Quarry, Fort Wayne, Indiana
2.5-cm cube
 Viewed:  43908 Time(s)

Fluorite-a-DM23920sm.jpg



Aragonite2-DM28159.jpg
 Description:
Aragonite with calcite and limonite
Highway 37 road cut, Bloomington, Indiana
cabinet
Holly Leppert donation (Norman Leppert collection)
 Viewed:  43716 Time(s)

Aragonite2-DM28159.jpg


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John Jaszczak




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PostPosted: Dec 07, 2011 21:39    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

The new Michigan Basin minerals gallery will be opening very soon!


MI-basin-gallery.jpg
 Description:
View of the nearly-complete Michigan Basin gallery.
 Viewed:  43378 Time(s)

MI-basin-gallery.jpg



Clay-Center-Large_Fluorite.jpg
 Description:
Fluorite
White Rock Quarry, Clay Center, Ohio
large cabinet
This large fluorite from Ohio is in the case at the entrance to the exhibit. The specimens from the Michigan Basin (which includes part of Ohio) just don't seem to get the recognition they deserve.
 Viewed:  43412 Time(s)

Clay-Center-Large_Fluorite.jpg



woolmith_celestine-gem.jpg
 Description:
Celestine
Woolmith Quarry, Maybee, Monroe Co., Michigan
thumbnails
Michigan celestines hold their own compared to those from anywhere in the world.
 Viewed:  43321 Time(s)

woolmith_celestine-gem.jpg



woolmithsign.jpg
 Description:
A little more detail about the Woolmith Quarry
 Viewed:  43292 Time(s)

woolmithsign.jpg



large-Sulfur-Celestine.jpg
 Description:
Sulphur and Celestine
Woolmith Quarry, Maybee, Monroe Co., Michigan
Large cabinet
The Sulphurs from Michigan also deserve more attention!
 Viewed:  43297 Time(s)

large-Sulfur-Celestine.jpg



sulfur-pair.jpg
 Description:
Sulphur
Maybee, Monroe Co., Michigan
small cabinet
 Viewed:  43289 Time(s)

sulfur-pair.jpg


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Antonio Alcaide
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PostPosted: Dec 08, 2011 04:18    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

John Jaszczak wrote:
The sulfurs from Michigan also deserve more attention!

Certainly yes!!! They are large and well formed.

Regards

_________________
Life is the shortest crystal
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PostPosted: Dec 09, 2011 21:17    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

Another very fine celestine from the Woolmith Quarry.


large-celestine.jpg
 Description:
Celestine
Woolmith Quarry, Maybee, Michigan
large cabinet
 Viewed:  43257 Time(s)

large-celestine.jpg


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PostPosted: Dec 10, 2011 13:51    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

"Located near the village of Newport in Monroe County, Michigan, the Holloway (Rockport Stone) quarry has produced some of the finest celestine specimens from North America, as well as the largest and best fluorite crystals from Michigan."


holloway1.jpg
 Description:
Celestine
Holloway Quarry, Monroe Co., Michigan
large cabinet
 Viewed:  43110 Time(s)

holloway1.jpg



holloway2.jpg
 Description:
Celestine
Holloway Quarry, Monroe Co., Michigan
large cabinet
 Viewed:  43154 Time(s)

holloway2.jpg



holloway3.jpg
 Description:
Celestine
Holloway Quarry, Monroe Co., Michigan
large cabinet
 Viewed:  43206 Time(s)

holloway3.jpg



hollowaycase.jpg
 Description:
Case of minerals from the Holloway quarry.
 Viewed:  43173 Time(s)

hollowaycase.jpg


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PostPosted: Dec 11, 2011 13:30    Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan  

Something special for meteorite lovers-
this Iron-Nickel meteorite was found in Grand Rapids, Michigan in 1883. It was donated to the museum by Donald C. Gabriel.



GR_Meteorite.jpg
 Description:
Iron-Nickel Meteorite
Grand Rapids, Michigan
Large cabinet
 Viewed:  43115 Time(s)

GR_Meteorite.jpg


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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:  50543 Time(s)

crockley-Moly.jpg



MichiganGoldmine.jpg
 Description:
Gold in Quartz
Michigan Gold Mine, Ishpeming, Michigan
small cabinet to miniature
 Viewed:  50454 Time(s)

MichiganGoldmine.jpg


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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:  50347 Time(s)

clay-center.jpg



clay-center-closeup.jpg
 Description:
Fluorite, Celestine, Sphalerite
White Rock Quarry, Clay Center, Ohio
 Viewed:  50419 Time(s)

clay-center-closeup.jpg


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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:  50331 Time(s)

halite.jpg


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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:  49942 Time(s)

oxides-1.jpg



brookite.jpg
 Description:
Brookite
Kharan district, Baluchistan, Pakistan
cabinet
acquired in 2006
 Viewed:  49929 Time(s)

brookite.jpg



oxides-2.jpg
 Description:
Oxide exhibit 2
 Viewed:  49891 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:  49927 Time(s)

zincite.jpg



rutile-hematite.jpg
 Description:
Rutile epitaxic on Hematite
Novo Horizonte, Bahia, Brazil
cabinet
acquired in 2004
 Viewed:  49964 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:  49943 Time(s)

weill-hematite.jpg


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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:  49862 Time(s)

DeKalb-Diopside.jpg


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