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Location help: Johan Friedrich Gr., Koen, Baden-Wurttemberg

Posted by Vik Vanrusselt  
avatar Location help: Johan Friedrich Gr., Koen, Baden-Wurttemberg
May 07, 2012 05:47PM
Hello all,

I bought a specimen of Beyerite at the Minerant mineral fair in Antwerp yesterday.

The location on the label is: Johan Friedrich Gr. Koen, Black Forest, Baden-Württemberg, Germany.

I can't find this locality on Mindat, any ideas?

Thanks,

Vik



Edited 1 time(s). Last edit at 05/07/2012 05:52PM by Vik Vanrusselt.
Re: Location help: Johan Friedrich Gr., Koen, Baden-Wurttemberg
May 08, 2012 06:01PM
    
Sounds like a misprinted locality. Do you have a scan of the label? (Or is it printed or well-written anyway?)
avatar Re: Location help: Johan Friedrich Gr., Koen, Baden-Wurttemberg
May 08, 2012 08:58PM
I found out that underneath the visible label was another one.

the original label reads (translated into English):

Beyerite
(Cu,Pb)(BiO)2(CO3)2 -- What mineral is this?
brown-yellow aggr.
crusts on Calcite and Malachite
Joh. Friedrich Mine
Black Forest
B.R.D.

the 'new' label reads (translated into English):

Beyerite
Johan Friedrich Gr. Koen
Black Forest
Bad. Wurt.,
B.R.D.

Vik

EDIT: FORMULA DOES NOT CORRESPOND TO BEYERITE



Edited 1 time(s). Last edit at 01/30/2013 05:02PM by Vik Vanrusselt.
Re: Location help: Johan Friedrich Gr., Koen, Baden-Wurttemberg
May 08, 2012 11:10PM
Hi Vik,

Schönegrund
is "Grube Johann-Friedrich" see "Mineralfundstellen Baden-Württemberg" M. Glas/H.Schmeltzer 1977:
"Königswart" at last was named "Johan-Friedrich" from 1823-1825.

Groeten
Milo



Edited 1 time(s). Last edit at 05/09/2012 10:48PM by Emil Box.
Re: Location help: Johan Friedrich Gr., Koen, Baden-Wurttemberg
May 10, 2012 06:14PM
    
Thanks, Emil. That makes sense - bismutite and beyerite are well-known from this mine.
Will add the alternate name to the locality.
avatar Re: Location help: Johan Friedrich Gr., Koen, Baden-Wurttemberg
May 10, 2012 08:52PM
Thank you Emil!

I found a reference to the mine in "Beyträge zur Geschichte des teutschen Bergbaues" (1783) by Johann Friedrich Gmelin:

http://books.google.be/books?id=9yQ7AAAAcAAJ&pg=PA428&lpg=PA428&dq=%22k%C3%B6nigswart%22+%22grube+johann-friedrich%22&source=bl&ots=muafOhPGZf&sig=I75j0I00y7vjdWZ0nAvBsGqr3tE&hl=nl&sa=X&ei=MdSqT8CZE4SZ-wbvj4mdCg&sqi=2&ved=0CDIQ6AEwAg#v=onepage&q=%22k%C3%B6nigswart%22%20%22grube%20johann-friedrich%22&f=false


Translation:

The Johann Friedrich Quarry or the old Königswart in the Murg Valley, not far from the village of Roth in the "Klosteramt" (i.e. an administrative division centering on the estates of a dissolved monastery) of Reichenbach, was, already under Duke Friedrich, known for it's beautiful copper and rich silver ores.
In 1739, from this mine and the mines S(aint) Peter and S(aint) George, 57 Zentner (1 Zentner is 50 kilograms) and 55 pounds were molten. Per Zentner, these ores from the last mine contained 1 loth (approximately 16 grams) of silver and 4 pounds of copper.
And from 17 1/2 Zentner gathered together from all of these mines came 150 pounds of rock and 59 pounds of iron-bearing chalk.

Vik
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