Name: Queen Alexandra Range 99473 This is an OFFICIAL meteorite name. Abbreviation: QUE 99473 Observed fall: No Year found: 1999 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 0.27 g
Macroscopic Description: Cecilia Satterwhite
98% of the exterior of this meteorite has black fusion crust with oxidation haloes. The interior consists of a brown/black matrix with some metal.
Thin Section (, 2) Description: Linda Welzenbach, Tim McCoy and Gretchen Benedix
Plane-Polarized Light
Cross-Polarized Light
The section shows an aggregate of chondrules (up to 1 mm), chondrule fragments, and pyroxene grains in a matrix of about 30% metal and sulfide. Olivine is absent. The matrix has an igneous texture typical of impact-melted enstatite chondrites such as Abee. Weathering is modest, with staining of some enstatite grains and minor alteration of metal and sulfides. Microprobe analyses show pyroxene is Fs1-2. The meteorite appears to be an EH impact melt breccia.