Don Goodrich on sat 24 mar 12
Last time I used UNM's services, I think the price was $50 plus a pot in =
=3D
trade
for the analysis. Their results seemed reliable. I've plugged the analyse=
=3D
s into=3D20
my glaze software and gotten useful recipes with them.=3D20
If you can locate someone with one of those nifty handheld X-ray=3D20
fluorescence units, the analysis can be a matter of seconds.
Don Goodrich
http://dongoodrichpottery.com/
On Sat, 24 Mar 2012 10:53:48 -0600, Craig Donalson=3D20
wrote:
>I am wondering if anyone has had good experiences with a labratory doing=
=3D
>chemical analysis of local clays?
>UNM offers the service here but the $75 price seemed somewhat more than =
=3D
I
>remember it being a few years ago.
Craig Donalson on sat 24 mar 12
I am wondering if anyone has had good experiences with a labratory doing
chemical analysis of local clays?
UNM offers the service here but the $75 price seemed somewhat more than I
remember it being a few years ago.
Thanks.
Eva Gallagher on mon 26 mar 12
Hi,
Our son is a geologist and uses one. I got him to analyse some commercial
cups , some with decals. A lot of heavy metals are often associated with
arsenic and I was wondering if that was present, especially as most decals
seem to come from China. However the data he sent me, from inside, outside
and just the decals - showed in some instances lots of arsenic and and at
times lead as well, but he did not say which parts it came from - the
inside, outside or just the decal. Then he was too busy to get back to me o=
n
that - but I should persue it as the results were rather interesting.
Eva Gallagher
Deep River, Ontario
http://newfoundoutpotter.blogspot.com/
----- Original Message -----
From: "Don Goodrich"
To:
Sent: Monday, March 26, 2012 9:25 AM
Subject: Re: Labs that do Chemical Analysis of Local Clays?
Dear Ivor,
As I understand it, the hand-held XRF devices (when appropriately
calibrated) can give qualitative and quantitative readings of clay samples.
They're advertised as being useful for mining and prospecting, as well as
art/architectural/archeological analysis.
Here are links to websites of two manufacturers:
http://www.niton.com/
http://www.bruker-axs.com/handheld-xrf-analyzers.html
Although they're wonderfully expensive, occasionally one turns up on ebay
for under $10,000.
Cheers,
Don Goodrich
http://dongoodrichpottery.com/
ivor and olive lewis on mon 26 mar 12
Dear Don Goodrich,
Is there a simple way to determine the mineral mix and percentage values fo=
r
each mineral in clay samples.
That hand held X-ray fluorescence units sounds like a handy tool. Where can
they be found.
Thanks for information,
Ivor Lewis,
REDHILL,
South Australia
Don Goodrich on mon 26 mar 12
Dear Ivor,
As I understand it, the hand-held XRF devices (when appropriately=3D20
calibrated) can give qualitative and quantitative readings of clay sample=
=3D
s.=3D20
They're advertised as being useful for mining and prospecting, as well as=
=3D
=3D20
art/architectural/archeological analysis.
Here are links to websites of two manufacturers:
http://www.niton.com/=3D20
http://www.bruker-axs.com/handheld-xrf-analyzers.html=3D20
Although they're wonderfully expensive, occasionally one turns up on eb=
=3D
ay=3D20
for under $10,000.
Cheers,
Don Goodrich
http://dongoodrichpottery.com/
ivor and olive lewis on tue 27 mar 12
Dear Don Goodrich,
I found the Titon site but to take possession of one would require a fund
increase of several orders of magnitude. As they say in gambling circles (o=
r
was it along Wall Street), "The rewards are great but the risks are
astronomic !
However, if it could discriminate between various minerals designated as
"CLAY" and give the proportions present it might help in formulating batche=
s
of plastic potters clay that had highly desirable workability. The first
supplier who started doing that would have a distinct competitive advantage=
.
Thanks for the tips,
Regards,
Ivor Lewis,
REDHILL,
South Australia
| |
|
