[meteorite-list] Rocks from Space Picture of Day - December 22, 2010

[bernd.pauli at paulinet.de]

Hello Count, Jason, List,

Buchwald V.F. (1975) Handbook of Iron Meteorites, Volume 3, p. 862:

"Primary aggregates of inch-sized taenite crystals, separated by troilite melts,
 are apparently not at all rare but may occur within many groups of iron meteorites.
 Outstanding examples are N'Goureyma, San Christobal, Barranca, Blanca, Waterville,
 Soroti, Santa Catharina, Twin City, and Mundrabilla.
 There are, however, strong indications that these primitive structures mainly occur within
 the anomalous meteorites ... The polycrystalline metal-sulfide mixtures seem to indicate
 that the material was produced by compression and a homogenizing sintering from the
 components and that this initial process was followed by a high temperature grain growth
 process."

Best pre-Xmas wishes
from Germany,

Bernd

P.S.: Hello Werner and Sandra. This is probably the best "shot"
of this Mundrabilla mass we've ever had the pleasure to see!

http://www.rocksfromspace.org/December_22_2010.html