Name: Queen Alexandra Range 93513 This is an OFFICIAL meteorite name. Abbreviation: QUE 93513 Observed fall: No Year found: 1993 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 0.16 g
Macroscopic Description: Carol Schwarz
Approximately 50% of this tiny rusty and fractured fragment is
covered with dark reddish brown fusion crust. Some metal is visible.
The entire sample is now embedded in epoxy.
Thin Section (,1) Description: Brian Mason
The section shows an aggregate of chondrules and chondrule fragments,
up to 1.2 mm across, and mineral grains in a moderate amount of
black matrix. The chondrules and mineral grains consist almost
entirely of pyroxene, with possible traces of olivine. The matrix
contains a moderate amount of nickel-iron and sulfides. Weathering
is extensive, with veinlets and patches of brown limonite throughout
the section. Microprobe analyses show that the pyroxene is close
to MgSiO3 in composition (FeO 0.7-1.8%, CaO 0.2-0.6%). The nickel-iron
contains 2.1-2.4% Si. One grain of roedderite, NaKMg5Si12O30,
was analyzed. The meteorite is classified as an E4 chondrite.