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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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 Posted: Nov 28, 2011 22:01 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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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!)
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Seamanite
Chicagon Mine, Iron Co., Michigan |
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43974 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Nov 28, 2011 22:13 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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I love this specimen of cryptomelane. The spheres to 6mm across are just perfect.
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Cryptomelane with limonite
Ironwood, Michigan
28 x 13 x 9.5 cm |
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44027 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Nov 29, 2011 20:20 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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These manganoan calcites from the Montreal Mine are wondrous.
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manganoan Calcite
Montreal Mine, Montreal, Wisconsin
approximately 6 cm sphere |
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43850 Time(s) |
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| Description: |
manganoan Calcite
Montreal Mine, Montreal, Wisconsin
approximately 20 cm sphere |
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43874 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Nov 30, 2011 22:16 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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This hematite shows some interesting stalactitic morphology.
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Hematite
Iron Mountain, Michigan
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43795 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Dec 05, 2011 16:33 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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A few fine mineral specimens from the midwest United States...
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Calcite enclosing marcasite-marked phantom
Berry Materials Quarry, North Vernon, Indiana
miniature
Lance T. Hampel donation. |
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43619 Time(s) |
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Calcite
Meshberger quarry, Columbus, Indiana
cabinet
Lance T. Hampel donation. |
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43630 Time(s) |
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Fluorite
France Stone Quarry, Fort Wayne, Indiana
2.5-cm cube |
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43850 Time(s) |
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Aragonite with calcite and limonite
Highway 37 road cut, Bloomington, Indiana
cabinet
Holly Leppert donation (Norman Leppert collection) |
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43659 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Dec 07, 2011 21:39 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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The new Michigan Basin minerals gallery will be opening very soon!
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| View of the nearly-complete Michigan Basin gallery. |
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43324 Time(s) |
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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. |
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43359 Time(s) |
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Celestine
Woolmith Quarry, Maybee, Monroe Co., Michigan
thumbnails
Michigan celestines hold their own compared to those from anywhere in the world. |
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43269 Time(s) |
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| A little more detail about the Woolmith Quarry |
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43240 Time(s) |
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Sulphur and Celestine
Woolmith Quarry, Maybee, Monroe Co., Michigan
Large cabinet
The Sulphurs from Michigan also deserve more attention! |
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43246 Time(s) |
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Sulphur
Maybee, Monroe Co., Michigan
small cabinet |
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43236 Time(s) |
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Antonio Alcaide
Site Admin
Joined: 23 Aug 2009
Posts: 314
Location: Spain
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| Posted: Dec 08, 2011 04:18 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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| 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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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Dec 09, 2011 21:17 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Another very fine celestine from the Woolmith Quarry.
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Celestine
Woolmith Quarry, Maybee, Michigan
large cabinet |
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43204 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Dec 10, 2011 13:51 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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"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."
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Celestine
Holloway Quarry, Monroe Co., Michigan
large cabinet |
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43058 Time(s) |
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Celestine
Holloway Quarry, Monroe Co., Michigan
large cabinet |
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43101 Time(s) |
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Celestine
Holloway Quarry, Monroe Co., Michigan
large cabinet |
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43153 Time(s) |
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| Case of minerals from the Holloway quarry. |
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43120 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Dec 11, 2011 13:30 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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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.
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Iron-Nickel Meteorite
Grand Rapids, Michigan
Large cabinet |
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43062 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Dec 11, 2011 21:01 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Michigan also has some less-well-known mineral occurrences in the Upper Peninsula, including pegmatites and gold deposits.
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Moybdenite
Crockley pegmatite, Republic, Michigan
cabinet |
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50465 Time(s) |
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Gold in Quartz
Michigan Gold Mine, Ishpeming, Michigan
small cabinet to miniature |
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50379 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Dec 13, 2011 21:44 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Northwestern Ohio (also in the Michigan Basin) has also produced some wonderful
calcite, fluorite, celestine, and sphalerite specimens. Many are quite large.
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Fluorite, Celestine, Sphalerite, Calcite
White Rock Quarry, Clay Center, Ohio |
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50269 Time(s) |
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| Description: |
Fluorite, Celestine, Sphalerite
White Rock Quarry, Clay Center, Ohio |
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50343 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Dec 14, 2011 21:21 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Some of the halite specimens from Michigan can be fascinating and spectacular.
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Halite
Detroit Salt Mine, Detroit, Michigan
Cabinet |
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50258 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Jan 16, 2012 22:50 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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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.
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49868 Time(s) |
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Brookite
Kharan district, Baluchistan, Pakistan
cabinet
acquired in 2006 |
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49855 Time(s) |
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49814 Time(s) |
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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. |
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49852 Time(s) |
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Rutile epitaxic on Hematite
Novo Horizonte, Bahia, Brazil
cabinet
acquired in 2004 |
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49889 Time(s) |
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| Description: |
Hematite
Kuruman, South Africa
10-1/2x 7 x 4 inches
extremely fine crystal for its (extreme) size. Donated by Marc Weill. |
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49867 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Jan 21, 2012 17:20 Post subject: Re: A. E. Seaman Mineral Museum, Michigan Technological Univ., Houghton, Michigan |
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Some excellent diopside crystals from the famous DeKalb, New York occurrence.
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Diopside
old Calvin Mitchell farm occurrence, DeKalb, New York
The crystal lying down at the left is doubly terminated and has epitaxic tremolite. |
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49788 Time(s) |
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