[meteorite-list] Nickel tests

From: Greg Stanley <stanleygregr_at_meteoritecentral.com>
Date: Wed, 23 Sep 2009 15:09:23 -0700
Message-ID: <SNT117-W458ADD5BB22DECBEEB1844D2DB0_at_phx.gbl>

 <4ABA90ED.7090207 at meteoritesusa.com>
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0


Eric:

That's really funny - I also got a false negative on a Canyon Diablo specim=
en.

Greg S.

----------------------------------------
> Date: Wed=2C 23 Sep 2009 14:19:41 -0700
> From: eric at meteoritesusa.com
> To: mike.hankey at gmail.com
> CC: meteorite-list at meteoritecentral.com
> Subject: Re: [meteorite-list] Nickel tests
>
> Hey Mike=2C
>
> I've used the nickel allergy test as well with mixed results.
>
> Sometimes is works sometimes it doesn't. In fact I would say it is not
> reliable most of the time unless you have a good control specimen.
>
> I kept getting false positives and even negative results on known
> meteorites. In fact I took a Canyon Diablo iron that I had sliced and
> tested it for nickel. Hmmmm imagine my surprise when it showed NO
> results. I figure the test kit was old or out dated but whatever. The
> point is it didn't work on a 100% genuine meteorite=2C why would I trust
> it with something I'm not sure of?
>
> There are nickel tests that work=2C but I have not tested many of them.
> Your best bet is to test your test kit. Testing against a known
> authentic meteorite is a good method. Then test against your "possible"
> meteorite. Your results will be more reliable because now you have a
> control specimen to compare results.
>
> Hope this helps...
>
> Regards=2C
> Eric
>
>
>
>
>
> Mike Hankey wrote:
>> I've done some nickel tests on some of the slag/meteor wrongs we have fo=
und.
>>
>> It tests positive for nickel.
>>
>> Does this sound normal?
>>
>> So I guess the only way to confirm slag (if you can't do it visually)
>> is to cut it open and if there are holes / bubbles then it is slag. Or
>> if the slice doesn't look like a meteorite slice it is slag.
>>
>> For the record=2C I am personally looking for west like fusion crusted
>> stones and this is what I am training people to look for. At the same
>> time when I get reports about weird rocks I have to follow up and take
>> a look. Not all slag looks the same=2C there are a lot of different
>> types. I'm getting pretty good at identifying / ruling things out=2C but
>> the nickel test threw me for a loop.
>> ______________________________________________
>> http://www.meteoritecentral.com
>> Meteorite-list mailing list
>> Meteorite-list at meteoritecentral.com
>> http://six.pairlist.net/mailman/listinfo/meteorite-list
>>
>>
>
> ______________________________________________
> http://www.meteoritecentral.com
> Meteorite-list mailing list
> Meteorite-list at meteoritecentral.com
> http://six.pairlist.net/mailman/listinfo/meteorite-list
                                               =0A=
_________________________________________________________________=0A=
Insert movie times and more without leaving Hotmail=AE.=0A=
http://windowslive.com/Tutorial/Hotmail/QuickAdd?ocid=3DTXT_TAGLM_WL_HM_Tut=
orial_QuickAdd_062009=
Received on Wed 23 Sep 2009 06:09:23 PM PDT