[meteorite-list] non-magnetic meteorites?

[Michael Murray]

I have a small "suspect" stone that will roll right off of a NDIB  
supermagnet if you set it on it and tilt the magnet a little, but I  
picked it up with my magnet cane. (??)  I have two 2"x2"x1/4" NDIB  
supermagnets side by side on the head of the cane.  When I found the  
little stone that day it was sitting up on the top of the magnets and  
right in the middle where the two magnets touched.  I don't know squat  
about magnets but because of finding this little rock like that I have  
always wondered if the attraction is stronger when two flat magnets  
are touching each other on the edge more so than just one of those  
magnet's attraction by itself.   I'm probably way out in left field on  
this.  Maybe someone on the List can shoot down my theory so I can  
forget about that being the reason for picking up the stone.
Mike in CO
On May 24, 2011, at 9:41 AM, David Gunning wrote:

> Hi All,
>
> It's commonly understood that all meteorites are magnetic to varying
> degrees, or so I've read.  I'm wondering if there are any exceptions  
> to
> that iron clad rule of thumb?
>
> I've a non-magnetic mineral specimen with a black crust and what  
> appear
> to be some sort of orientation striations.
>
> The specific gravity of this specimen is lower than the range of  
> values
> usually associated with most meteorites.
>
> Prolly a meteorwrong, I realize, but causes me to pause and wonder if
> it's within the realm of remote possibility that there are such  
> animals
> as non-magnetic meteorites?
>
> Thanks for your indulgence in helping diminish a wealth of personal
> ignorance in the somewhat occasional arcane field of meteorite
> identification.
>
> All good regards,
>
> David Gunning
>
>
>
>
>
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