Or some other Metallica substance.
Daniel R. Pratt
-----Original Message-----
From: Mike Dunning [mailto:[log in to unmask]]
Sent: Wednesday, January 23, 2002 3:54 PM
To: [log in to unmask]
Subject: Re: gramophone records
Probably residue from Haley's Comets.
Mike Dunning
Michael Shaw wrote:
>
> Is this rock used at any specific time or around the clock?
> Mike Shaw
>
> ----- Original Message -----
> From: Pratt, Daniel R. <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, January 22, 2002 10:15 PM
> Subject: Re: gramophone records
>
> Everyone knows the best mineral for the manufacture of gramophone
> records is plain old rock.
>
> Sorry.
>
> Daniel R. Pratt
> Architectural Historian, Archaeologist (RPA), Office Safety
Coordinator
> HDR Engineering, Inc., 6190 Golden Hills Drive, Minneapolis, MN 55416
> (763) 591-5423 direct (763) 591-5413 fax [log in to unmask]
> <mailto:[log in to unmask]>
>
> -----Original Message-----
> From: Michael Shaw [mailto:[log in to unmask]]
> Sent: Tuesday, January 22, 2002 4:38 PM
> To: [log in to unmask]
> Subject: Re: gramophone records
>
> Some mineral found at Tews shaft, Bog mine, Shropshire was considered
to
> possibly have been of use for the manufacture of gramophone records,
but
> proved not to be.
> Does anyone have any idea what the substance could have been. My
> informant
> was a retired miner, he did not work at Bog which had closed for good
> when
> he was about 11.
> Mike Shaw
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