[meteorite-list] Zaklodzie

From: bernd.pauli at paulinet.de <bernd.pauli_at_meteoritecentral.com>
Date: 14 Jan 2009 22:26:10 UT
Message-ID: <DIIE.00000027000037FD_at_paulinet.de>

Hello Tracy, Marcin, and List,

Marcin wrote:

"I think that the most competent answer You will find here."

 
PRZYLIBISKI T.A. et al. (2005) The Zaklodzie enstatite meteorite: Mineralogy, petrology,
origin and classification (MAPS 40-9, pp. A185-A200, excerpt from p. A186):
 
The Zaklodzie meteorite has a fusion crust 0.1-1.0 mm thick (average 0.3 mm);
this crust is strongly weathered and contains iron oxides and hydroxides, evidence
of prolonged terrestrial weathering. With the naked eye, three concentric zones
varying in color can be distinguished in the stone. The outer zone A is the darkest,
being dark grey with a rusty tint; the intermediate zone B is rusty-grey in color and
the inner zone C is pale grey, locally nearly white. In the inner zone, opaque minerals
make up ca. 10-15 vol% and are irregularly distributed. In the other two zones, opaques
reach about 20 vol%. Within the relatively homogeneous texture of the meteorite, oval
aggregates are locally present. They consist of several to tens of enstatite crystals
and minor other minerals including metal and troilite. These forms were interpreted by
some authors (Stepniewski et al. 2000; Manecki and Lodzinski 2001) as "relics of chondrules."
 
About 4 inches of snow within two hours here!
 
Best,
 
Bernd
Received on Wed 14 Jan 2009 05:26:10 PM PST