Mineral Specimens with Valleriite

  -  3 specimens selected

MD-199921 - Cubanite, Maucherite, Valleriite - - Archived
Mackinaw Mine (Weden Creek Mine), Monte Cristo, Monte Cristo District, Snohomish Co., Washington, USA
cabinet, 12.6 x 9.2 x 5.1 cm.
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Cubanite, Maucherite, Valleriite from Mackinaw Mine (Weden Creek Mine), Monte Cristo, Monte Cristo District, Snohomish Co., Washington, USA [db_pics/mdpics/MD-199921a.jpg]		CLICK HERE FOR LARGER IMAGE:
Cubanite, Maucherite, Valleriite from Mackinaw Mine (Weden Creek Mine), Monte Cristo, Monte Cristo District, Snohomish Co., Washington, USA [db_pics/mdpics/MD-199921b.jpg]

12.6 x 9.2 x 5.1 cm. A hefty ore specimen, with probably tons of material stuck inside it as well as what you see on the outside, judging by the look of it. I think the cubanite (and associated more rare species) fills thin fracture seams within. On the exposed main face, there are dozens of thin, flat-lying cubanite crystals to 7mm in size. Apparently this specimen was exchanged to the Academy by the Smithsonian. Ex. Philadelphia Academy of Sciences and Smithsonian Institution Collections.

MD-222506 - Valleriite, Bornite - - Archived
War Eagle Mine, Whitehorse Copper Belt, Whitehorse Mining District, Yukon Territory, Canada
thumbnail, 2.0 x 1.2 x 0.9 cm.
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Valleriite, Bornite from War Eagle Mine, Whitehorse Copper Belt, Whitehorse Mining District, Yukon Territory, Canada [db_pics/mdpics/MD-222506a.jpg]		CLICK HERE FOR LARGER IMAGE:
Valleriite, Bornite from War Eagle Mine, Whitehorse Copper Belt, Whitehorse Mining District, Yukon Territory, Canada [db_pics/mdpics/MD-222506b.jpg]

2.0 x 1.2 x 0.9 cm. Valleriite is an uncommon sulfosalt. A centrally located pod of bronze-colored valleriite microcrystals on matrix is very nicely accented by iridescent purple and blue bornite from the War Eagle Mine, Yukon Territory, Canada. The backside is richer in bornite, but still has some valleriite. Older, seldom available from the Dick Jones Collection.

PAS-86 - Cubanite with Maucherite, Valleriite - SOLD
Mackinaw Mine, Monte Cristo, Snohomish County, Washington, USA
cabinet, 12.6 x 9.2 x 5.1 cm
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ex.  Philadelphia Academy of Natural Sciences

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Cubanite with Maucherite, Valleriite from Mackinaw Mine, Monte Cristo, Snohomish County, Washington, USA [db_pics/pics/pas-86a.jpg]		CLICK HERE FOR LARGER IMAGE:
Cubanite with Maucherite, Valleriite from Mackinaw Mine, Monte Cristo, Snohomish County, Washington, USA [db_pics/pics/pas-86b.jpg]
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Cubanite with Maucherite, Valleriite from Mackinaw Mine, Monte Cristo, Snohomish County, Washington, USA [db_pics/pics/pas-86c.jpg]		CLICK HERE FOR LARGER IMAGE:
Cubanite with Maucherite, Valleriite from Mackinaw Mine, Monte Cristo, Snohomish County, Washington, USA [db_pics/pics/pas-86d.jpg]

A hefty ore specimen, with probably tons of material stuck inside it as well as what you see on the outside, judging by the look of it. I think the cubanite (and associated more rare species) fills thin fracture seams within. On the exposed main face, there are dozens of thin, flatlaying cubanite crystals to 7mm in size. I had never seen cubanite from a US locality, before. According to the MINDAT entry on this mine, it produced ore from 1900-1910. Apparently this specimen was exchanged to the Academy by the Smithsonian. I am not sure if the reference on the Smithsonian label indicates this particular piece was referenced in 1958, or just the locality itself, in that article.


  -  3 specimens selected


Rob Lavinsky, rob@irocks.com

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