[meteorite-list] Could we get back to the science of meteorites, please ?

From: Michael Fowler <mqfowler_at_meteoritecentral.com>
Date: Mon, 18 Oct 2010 16:22:26 -0500
Message-ID: <FEBFF8B3-0106-47E8-A11C-8215D34366A7_at_mac.com>

List,

Could someone explain the meaning of the numbers in parenthesis? (n=7) and (n=11) is the analysis below?

Thanks in advance.

Mike Fowler


> NOVA 010
>
> W2 S3, olivine Fa 14.4 ?0.5 (n=7); low-Ca pyroxene Fs13.7 ?0.6, Wo0.6 ?0.3 (n=11)



> List:
>
> Last year I purchased a meteorite at a rock and mineral show a because it just looked a little different from most chondrites I have seen. The seller did not know where it was found so I got the provisional name NOVA 010. The exterior almost looked like an Iron or a Stony-Iron and it contained a lot of metal. The metal also looked a little different - more globular then most H-chondrites I've seen. I thought it might be a CH or an EH chondrite. Well I got it classified and it turned out to be a "reduced H4" with numbers very similar to the "Burnwell" fall in KY., although it's even more reduced.
>
> NOVA 010
>
> W2 S3, olivine Fa 14.4 ?0.5 (n=7); low-Ca pyroxene Fs13.7 ?0.6, Wo0.6 ?0.3 (n=11)
>
>
> Now here's Burnwell
>
> W0(fall) S3, olivine Fa 15.8 ?0.2 (n=79); low-Ca pyroxene Fs13.4 ?0.7, Wo0.7 ?0.2 (n=98)
>
> So you never know what you have until it gets classified.
>
> Greg S.
Received on Mon 18 Oct 2010 05:22:26 PM PDT