Re: [meteorite-list] Nickel tests

2009-09-25 Thread cdtucson
Michael, I would first of all like to thank you for this great information. Secondly , I would like to tell you that hopefully your test is definitive. As evidence that it is. I just tried to magnetize a bunch of small CD's and Odessa's that I have and none of them became magnetized. This prove

Re: [meteorite-list] Nickel tests

2009-09-25 Thread cdtucson
List, This is very interesting. I recently sent a metal axe object to Dr. Pierre Rochette at the university in Marseilles france . My specimen tested positive for nickel but come to find out it actually had none and this is what he had to say.; The chemical Ni test is a problem, but you have to

Re: [meteorite-list] Nickel tests

2009-09-25 Thread cdtucson
Michael, By the way my posts take several hours to post to the list. I don't know why. You are very interesting. What do you mean by Native Iron vs. meteorite iron? To me all iron is either man made or meteorite so, what is native? Do you mean Josephineite or what? I hunt old ranches in AZ wher

Re: [meteorite-list] Nickel tests

2009-09-24 Thread Michael Murray
I'm calling it native iron because that is what the tests showed. It is possible and the person making the analysis also stated that it could be meteoritic material. I don't know. It is some some pieces of metal from about 3/16" to 3/4" at the widest. The pieces are strongly susceptible

Re: [meteorite-list] Nickel tests

2009-09-23 Thread Michael Murray
Glad you found it useful. I wanted to share too that native iron reacts real close to the same as a meteorite will to the magnetism. So you might want to watch for that.I sent one of about 20 some pieces of native iron I have to AZ to a lab and they confirmed that that is what it is.

Re: [meteorite-list] Nickel tests

2009-09-23 Thread Michael Murray
For what they are worth, here are a couple suggestions... If you place the suspect iron on a strong magnet, then remove the magnet, the suspect iron should not retain magnetism (if it's a meteorite) but should to some extent if man-made iron. Kind of like magnetizing the tip of a screwdriver

Re: [meteorite-list] Nickel tests

2009-09-23 Thread Darryl Pitt
Further to what Marc mentioned, I've experienced false negatives which were remedied by having first applied a few drops of dilute HCl on the target surface. On Sep 23, 2009, at 5:42 PM, Fries, Marc D (3225) wrote: I've also had mixed results with the nickel allergy kit, but I think

Re: [meteorite-list] Nickel tests

2009-09-23 Thread Fries, Marc D (3225)
I've also had mixed results with the nickel allergy kit, but I think I've figured out how to get reasonably reliable results. I think the problem is that the companies who make these things probably have liability lawyers telling them to err on the side of false positives (which won't really cause

Re: [meteorite-list] Nickel tests

2009-09-23 Thread Greg Stanley
-- > Date: Wed=2C 23 Sep 2009 14:19:41 -0700 > From: e...@meteoritesusa.com > To: mike.han...@gmail.com > CC: meteorite-list@meteoritecentral.com > Subject: Re: [meteorite-list] Nickel tests > > Hey Mike=2C > > I've used the nickel allergy test as well wi

Re: [meteorite-list] Nickel tests

2009-09-23 Thread Meteorites USA
Hey Mike, 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 f

Re: [meteorite-list] Nickel tests

2009-09-23 Thread GeoZay
>>Does any one on the list 'know' of a reliable way to test for nickel?<< I don't know if the average person can acquire the various chemicals, but in the back of O. Richard Norton's book Rocks From Space, there is the recipe to making up a test for nickel found in meteorites. On the side I

Re: [meteorite-list] Nickel tests

2009-09-23 Thread Greg Stanley
. Does any one on the list 'know' of a reliable way to test for nickel? Greg S. > From: geo...@aol.com > Date: Wed, 23 Sep 2009 14:33:34 -0400 > To: meteorite-list@meteoritecentral.com > Subject: Re: [meteorite-list] Nickel tests >

Re: [meteorite-list] Nickel tests

2009-09-23 Thread Mike Hankey
The test I used was a Nickel allergy test I bought online. http://www.athenaallergy.com/?gclid=CIC1krawiJ0CFQog2godrC2Uhg If you can recommend a better test kit, please fwd me the link. I used some vinegar on the rock for a few minutes and then tested the vinegar. It turned the swab bright red.

Re: [meteorite-list] Nickel tests

2009-09-23 Thread GeoZay
>>I've done some nickel tests on some of the slag/meteor wrongs we have found. It tests positive for nickel. Does this sound normal?>> It all depends...were they buffalo heads, Jefferson or those new fangled ones? :O) GeoZay __ http://www.met

[meteorite-list] Nickel tests

2009-09-23 Thread Mike Hankey
I've done some nickel tests on some of the slag/meteor wrongs we have found. 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 loo