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Identity HelpSilver Bell Mine, Okanogan Co, WA unknown
25th Apr 2012 01:49 UTCKarl Volkman Expert
I have been going through some rock I picked up from the Silver Bell mine, Okanogan County WA http://www.mindat.org/loc-15916.html , which is part of the same vein system as the Zalla M mine http://www.mindat.org/loc-21948.html and American Flag Mine http://www.mindat.org/loc-18086.html . The overall vein system hosts Au, Ag, Cu, Pb, Te, and Zn minerals.
One of the rocks has produced a number of small (>2mm) masses of a blue chalky looking mineral. I am leaning towards Azurite, but none of hte masses have seemed to have distinct enough crystal morphology to be sure.
Any suggestions?
25th Apr 2012 02:42 UTCDennis Tryon
Dennis
25th Apr 2012 03:47 UTCRobert Meyer Manager
Take a tiny fragment off with a needle and put a drop of dilute HCl on it. Observe under your microscope. You can confirm or eliminate Azurite quite easily.
Bob
25th Apr 2012 04:19 UTCKarl Volkman Expert
25th Apr 2012 06:38 UTCBart Cannon
I think that the Silver Bell you are referring to is actually in Ferry County.
There is a very large leach pad there that was graded out in the early 1980s. Fully of vuggy quartz with lovely micro acanthite, hessite and complex micro fluorite xls, and not so good stromeyerite. Other common sulfides are present.
I've analyzed some of the blue stuff and it seemed to be all azurite.
Bart
25th Apr 2012 12:30 UTCKarl Volkman Expert
That is the same mine, which if I recall correctly is listed in Metal Mines of Washington as ~30 ft west of the Okanogan/Ferry County line.
Have you by chance analyzed any of these yellow mica spheres from there?
25th Apr 2012 14:45 UTCBart Cannon
Sounds like a GPS project to determine which county, but I'm pretty sure it's in Ferry County.
Haven't looked at the mica, but most of the vugs are filled with soft white kaolinite. HF or ammonium biflouride are needed to expose the goodies.
Bart
25th Apr 2012 22:06 UTCKarl Volkman Expert
Another metallic that the azurite rock has been producing are a small number of lustrous ?pyrites. Have you had any of these probed Bart?
30th Apr 2012 04:57 UTCKarl Volkman Expert
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