Vikingite

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Vikingite
Ag₅Pb₈Bi₁₃S₃₀ monoclinic
Greenland, Ivigtut


"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]



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Edited 14 time(s). Last edit at 07/26/2010 11:56AM by Rock Currier.

The Pedro claim is located on the Middle fork of the Snoqualmie (no "k") River, King County, Washington (not Idaho).

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.