NWA 1912
NWA 1912, Mesosiderite (MES)
type 2B.
A very small 13.52 g stone was purchased in Erfoud, Morocco, in March
of 2003. Analysis and classification was completed at Northern Arizona
University. This mesosiderite exhibits only minor recrystallization
and has a matrix composed predominantly of orthopyroxene, features which
are consistent with subgroup 2B. In contrast to NWA 1912, other 2B mesosiderites
contain melt-rock textures and were historically reclassified into the
igneous subgroup 4B. NWA 1912 is an unshocked meteorite (S1) which shows
only minor signs of weathering. I would like to thank David Weir for
his assistance in writing the description for this very rare and strange
mesosiderite.
What you see below is ALL that is available of this rare fresh little
meteorite. Very important for you type collectors.