Name: Queen Alexandra Range 93341 This is an OFFICIAL meteorite name. Abbreviation: QUE 93341 Observed fall: No Year found: 1993 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 7.5 g
Sample No.: QUE93336; 93341 Location: Queen Alexandra Range Dimensions (cm): 1.8 x 0.8 x 0.7; 3.0 x 1.7 x 1.2 Weight (g): 1.9; 7.5 Meteorite Type: Ureilite
Macroscopic Description: Robbie Marlow Both of these small specimens are identical. The small amount of fusion crust that remains is dull and dark brown. The rest of the exterior surfaces have a polished, waxy appearance. The brownish-gray interior shows abundant crystal faces.
Thin Section (QUE93336,2; 93341,2) Description: Brian Mason The sections are so similar that the meteorites are certainly paired. They show anhedral grains of olivine and pyroxene in a black matrix. Considerable weathering is indicated by brown limonite rimming many grains. In reflected light the margins of the silicate grains are seen to contain numerous minute metal grains, probably the product of reduction from their iron content by the carbonaceous matrix. During polishing the probable presence of microscopic diamonds in the matrix was noted. Microprobe analyses show that most of the olivine and pyroxene has uniform composition; olivine, Fa23; pyroxene Wo10Fs18; but the margins of the grains show greatly reduced iron contents. The meteorite is a ureilite, and appears to be relatively unshocked.
7.5 g