[meteorite-list] Schreibersite & Cohenite

[Gerald Flaherty]

Thank you Jeff and Bernd. Jerry
----- Original Message ----- 
From: <bernd.pauli at paulinet.de>
To: <info at meteorites.com.au>; <meteorite-list at meteoritecentral.com>
Sent: Saturday, March 12, 2005 8:55 AM
Subject: Re: [meteorite-list] Schreibersite & Cohenite


>> Is there a relatively easy and reliable way to visually
>> pick the difference between Schreibersite and Cohenite
>> in iron meteorites?
> 
> Hello Jeff and List,
> 
> Here is some information from Buchwald that may prove helpful
> in identifying schreibersite and cohenite in hand samples:
> 
> Buchwald V.F. (1975) Handbook of Iron Meteorites, Vol. 1:
> 
> Cohenite (p. 100):
> 
> - cohenite is brilliant  w h i t e
> - it is very hard, significantly harder than schreibersite
> - characteristic of group I irons (also occurs in other irons)
> 
> Schreibersite (p. 104):
> 
> - schreibersite is magnetic
> - it is   y e l l o w   in reflected light
> - compared to cohenite distinctly more brownish
> - softer and much more brittle than cohenite
> 
> See also: O.R. Norton (2002) Cambridge Encyclopedia of
> Meteorites, Appendix C, Minerals in meteorites (pp. 311-313).
> 
> Best wishes,
> 
> Bernd
> 
> To: info at meteorites.com.au
>    meteorite-list at meteoritecentral.com
> 
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