Michael
I consider gangue to be any material in the ore other than the actual
product being won. It doesn't have to be raised to be gangue.
I have also come across (though I don't agree with it) reference to
gangue as being the waste product of mineral dressing activities - in
which case it will have to have been raised to surface of course...
Keith
-----Original Message-----
From: mining-history [mailto:[log in to unmask]] On Behalf Of
Richard-PC
Sent: 08 September 2010 10:52 AM
To: [log in to unmask]
Subject: Re: gangue
Michael,
I think your definition of gangue is about as correct as it can be given
the
subjectivity which other correspondents have mentioned. However, I note
that your list is restricted pretty much to single minerals and mined
ores
contain other stuff such as country rock, clay, debris etc. all of which
have alternative local names.
What I can't understand is why you are doing this?
Regards
Richard
----- Original Message -----
From: "M J Shaw" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, September 07, 2010 9:29 PM
Subject: gangue
Dear list,
I am involved with a project relating to the archaeology (in England) of
substances which are or have been gangue and would welcome comments on
and
assistance with the following.
1) Various definitions of gangue have been published and seem to come
down
to 'unwanted materials which have to be raised with an ore being
sought',
would anyone add to or subtract from that definition?
2) I cannot find anything approaching a comprehensive list of gangue
substances which were ultimately found to be useful or which could have
left
potential archaeological traces. What should I add or subtract from this
list?
aragonite,
arsenopyrite,
barite,
calcite,
dolomite
fluorite,
fluorspar,
haematite,
manganese ores,
ochre,
pyrite,
quartz,
strontite,
tourmaline,
witherite,
zinc ores,
3) I would be interested to hear from anyone with an interest in such
materials or with information on site surveys or archaeological
investigations of appropriate sites.
Michael Shaw
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