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Vikingite

Posted by Rock Currier  
avatar Vikingite
November 10, 2008 08:10PM
Click here to view Best Minerals V and here for Best Minerals A to Z and here for Fast Navigation of completed Best Minerals articles.


Can you help make this a better article? What good localities have we missed? Can you supply pictures of better specimens than those we show here? Can you give us more and better information about the specimens from these localities? Can you supply better geological or historical information on these localities?


Vikingite
Ag5Pb8Bi13S30 monoclinic
Greenland, Ivigtut
Massive vikingite, 3 cm across.© Knut Eldjarn


"Lamellar with an average grain size of 0.5mm. Twinning: On {010}; twin lamellae parallel to [001] often observed in polished section.1 The mineral has been found at about a half dozen localities but was first found at Ivigtut and apparently most of them are little micro blebs in rocks.
1. Handbook of Mineralogy, Volume 1, Anthony, Bideaux, Bladh, Nichols, p557


Vikingite
United States
Washington, King County, Middle Fork of the Snoqualmie River, Pedro Claim.

A few rough, somewhat altered or coated crystals up to about 7x1x0.8 cm. exist in the collection of Lew Landers of Seattle Washington. He holds the claim on the place, which produces mostly quartz crystals which are his main interest. Occasionally some of the quartz pockets are associated with unusual metallic sulfide minerals. Mineral identification was by Bart Cannon on the microprobe. I got a small piece when I visited him, and we cut it in half at Bart’s house, took it down stairs and put it on his probe to identify it. Vikingite was the closest match. The piece I have has a small 1cm size crystal? on it. I would feel better if there was some more work done on these specimens to make their identity more certain.
[Rock Currier 10 November 2008]



Click here to view Best Minerals V and here for Best Minerals A to Z and here for Fast Navigation of completed Best Minerals articles.



Edited 14 time(s). Last edit at 07/26/2010 11:56AM by Rock Currier.
avatar Re: Vikingite
March 17, 2009 02:05AM
    
The Pedro claim is located on the Middle fork of the Snoqualmie (no "k") River, King County, Washington (not Idaho).
avatar Re: Vikingite
March 17, 2009 07:59PM
Karl,
Thanks, I'm sure glad Bart Cannon did not see that, I never would have heard the end of it.

Rock Currier
Crystals not pistols.
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