[meteorite-list] Recognizing E-chondrites

From: Darryl Pitt <darryl_at_meteoritecentral.com>
Date: Mon, 21 Dec 2009 18:51:13 -0500
Message-ID: <683C0561-F81D-4617-9246-211CDD1C0D9C_at_dof3.com>

Perhaps this is the exception that proves the rule, but I've long
marveled at the distinctively different crust of the EL6 Hvittis
(witnessed fall - 10/21/1901); it's an articulated stubble which looks
much like the surface of the spherical sauropod eggshell from South
America. /d



On Dec 21, 2009, at 6:11 PM, Matson, Robert D. wrote:

>> From the exterior alone, I would have to agree that an E-chondrite is
> almost indistinguishable from an O.C. The one E-chondrite I found in
> Nevada looked like a very fresh O.C. -- presumably an H-chondrite
> based
> on the magnetic attraction. Even after cutting a type specimen for
> analysis, I was convinced it was a very equilibrated H-chondrite. But
> it turned out to be a weathered (W4) EL6 (Roach Dry Lake 030).
>
> So the only anecdotal observational difference that I noted was that
> the fusion crust was blacker than that of an ordinary chondrite.
>
> -Rob
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Received on Mon 21 Dec 2009 06:51:13 PM PST