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

[Michael Fowler]

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.