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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 5025
Location: Barcelona
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 Posted: Apr 15, 2011 10:53 Post subject: A mineralogical trip through the states of USA - Michigan |
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Michigan the "Great Lakes State"
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Copper
Cliff mine, Phoenix, Keweenaw County, Michigan, USA
10.8 x 6 x 4 cm.
Owned by A. E. Seaman Mineral Museum - Former John T. Reeder collection.
Photo: A. E. Seaman Mineral Museum
To lead the Michigan State nothing better than one of the images downloaded by John Jaszczak in the great thread "A. E. Seaman Mineral Museum, Michigan T. University, Houghton, Michigan" ( http://www.mineral-forum.com/message-board/viewtopic.php?t=1416 )
Thank you John! |
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49595 Time(s) |
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Joaquin Montoro
Joined: 25 Nov 2010
Posts: 225
Location: Murcia (Spain)
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| Posted: Apr 15, 2011 14:22 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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An emblematic mineral from this state...
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| Domeykite (Mohawkite).- Mohawk Mine, Keweenaw Co. Michigan (USA) 10x6x4 cm. 1042 grams of this rare copper arsenide. |
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49504 Time(s) |
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_________________
Damnati ad Metalla |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Apr 15, 2011 17:20 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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Here is a lovely copper with a small calcite crystal and micro datolite crystals from the Quincy Mine, Hancock, Michigan. The copper shows some dodecahedral crystals with edges modified by trapezohedral faces. It is 7.3 x 7 x 5 cm overall, and was originally in the John T. Reeder collection, now in the A. E. Seaman Mineral Museum collection.
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| Copper, Calcite, Datolite. Quincy mine, Hancock, MI. |
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49480 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Apr 16, 2011 10:35 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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These copper crystals have the morphology of laumontite and appear to be pseudomorphs. The crystals are approximately 1 cm tall. Franklin Mine, Hancock, Michigan. Ex John T. Reeder collection now in the A. E. Seaman Mineral Museum.
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| Copper possible pseudomorph after laumontite. |
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49413 Time(s) |
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rweaver
Joined: 13 Apr 2009
Posts: 259
Location: Ridgecrest, California
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| Posted: Apr 16, 2011 18:10 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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Former collection of Al Ordway
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Analcime
Bohemian Mine,
Houghton, Michigan
5.0cm x 3.2cm |
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49411 Time(s) |
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rweaver
Joined: 13 Apr 2009
Posts: 259
Location: Ridgecrest, California
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| Posted: Apr 16, 2011 18:15 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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Former colelctions of Harvard and Marion Godshaw
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Manganite with Baryte Rose
Negaunee, Michigan
5.6cm x 5.0cm |
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49499 Time(s) |
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rweaver
Joined: 13 Apr 2009
Posts: 259
Location: Ridgecrest, California
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| Posted: Apr 16, 2011 18:20 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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I have never seen any others from here, and neither had the well know dealer I got it from
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Sulfer after Celestite
Scofield Quarry,
Maybee, Michgan
4.0cm x 3.7cm |
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49379 Time(s) |
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Apr 16, 2011 18:32 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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Sulfurs from this quarry are really fine- probably not getting the attention they deserve. I personally collected small crystals there in the late 1980's. The A. E. Seaman Mineral Museum has a fine collection of sulfur and celestine from
this locality.
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John Jaszczak
Joined: 05 Oct 2010
Posts: 300
Location: Hancock, MI
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| Posted: Apr 16, 2011 18:43 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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Finely crystallized copper associated with Baryte and calcite crystals from the White Pine Mine, Ontonagon Co., Michigan. Field of view is approximately 3 cm. John A. Jaszczak collection.
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| Copper, Calcite and Baryte. White Pine Mine, Ontonagon Co., Michigan. |
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49351 Time(s) |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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| Posted: Apr 16, 2011 19:36 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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Here are a few more Michigan pieces to add to the mix.
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Celestine and Calcite on Limestone
Newport Quarry
Newport
Monroe County, Michigan
United States of America
16.5 x 11.0 cm overall |
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49368 Time(s) |
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Silver and Copper
Adventure Mine
Greenland
Ontonagan County, Michigan
United States of America
7.8 x 5.4 x 3.9 cm overall |
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49400 Time(s) |
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Silver with Quartz
Copper Falls Mine
Ashbed Lode
Keweenaw County, Michigan
United States of America
8.1 x 5.5 x 2.0 cm overall |
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49459 Time(s) |
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Copper
Champion Mine
Painesdale
Houghton County, Michigan
United States of America
13.6 x 4.5 x 3.1 cm overall |
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49386 Time(s) |
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Calcite with Copper
Quincy Mine
Pewabic Amygdaloid Lodes
Houghton County, Michigan
United States of America
12.1 x 9.8 x 6.5 cm overall |
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49378 Time(s) |
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Celestine with Calcite
Maybee
Michigan
United States of America
6.4 x 5.5 x 3.5 cm overall |
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49376 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2184
Location: USA
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| Posted: Apr 17, 2011 07:35 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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A few for Michigan.
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Celestine and Calcite
Monroe County, Michigan
Specimen size 10.5 x 9.5 cm. |
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49405 Time(s) |
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Calcite included with Copper
Calumet, Houghton Co., Michigan
Specimen size 2 x 2.7 cm. |
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49288 Time(s) |
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| Description: |
Calcite with Copper
Keweenaw Peninsula, Michigan
Specimen size 8.5 x 5.2 cm. |
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49302 Time(s) |
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John S. White
Site Admin
Joined: 04 Sep 2006
Posts: 1298
Location: Stewartstown, Pennsylvania, USA
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| Posted: Apr 17, 2011 10:05 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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Is this truly a pseudomorph (sulfur after celestine)? It sure doesn't look like one judging by the photograph. The morphology is perfectly correct for sulfur and it appears to be a single crystal, not what one sees in pseudomorphs.
Are there other known examples?
_________________
John S. White
aka Rondinaire |
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Antonio Alcaide
Site Admin
Joined: 23 Aug 2009
Posts: 314
Location: Spain
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| Posted: Apr 19, 2011 07:20 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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| John Jaszczak wrote: | Sulfurs from this quarry are really fine- probably not getting the attention they deserve. I personally collected small crystals there in the late 1980's. The A. E. Seaman Mineral Museum has a fine collection of sulfur and celestine from
this locality. |
Sure, I agree. Here you have one more from there
| Description: |
| Suphur with tiny calcite crystals. Maybee, Monroe Co., Michigan. 7,5 x 5 cm. Main crystal measuring 3 cm. |
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49140 Time(s) |
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_________________
Life is the shortest crystal |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4235
Location: Germany
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| Posted: Apr 19, 2011 09:24 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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| Hi Antonio, a very nice sulphur specimen. I never heard of that quarry before, but these specimen nearly looks like from one of the famous mines on Sicily, really great!
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Antonio Alcaide
Site Admin
Joined: 23 Aug 2009
Posts: 314
Location: Spain
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| Posted: Apr 19, 2011 10:36 Post subject: Re: A mineralogical trip through the states of USA - Michigan |
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Hi Tobias,
neither I knew that locality when I got the specimen. Little enchanting surprises of collecting minerals!!
In my case it is usually a bit easier to improve my collection after reading a lot here about minerals all over the world. But regarding this sulphur the specimen came first and then the Forum :-)
Cheers
_________________
Life is the shortest crystal |
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