Name: Queen Alexandra Range 94204 This is an OFFICIAL meteorite name. Abbreviation: QUE 94204 Observed fall: No Year found: 1994 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 2.43 kg
Macroscopic Description: Kathleen McBride Smooth, brown, fusion crust covers ~30% of the exterior surface. Areas devoid of fusion crust are extremely weathered and have a rough, pitted texture. Metal is still obvious in the interior despite the extremely weathered condition of this stone.
Thin Section (,2) Description: Brian Mason The section shows a granular aggregate of about 75% pyroxene (average grain size 1.5 mm), 20% nickel-iron and troilite, and 5% intergranular plagioclase. The meteorite is severely weathered, with much of the nickel-iron altered to brown limonite. Some of the metal grains contain numerous inclusions of graphite. Microprobe analyses show that the pyroxene is close to MgSiO3 in composition, with a few more iron-rich grains. Plagioclase composition is An19-26. The nickel-iron contains 2.4-2.9% Si. The mineralogy is that of an enstatite chondrite, but no chondrules are present; therefore the meteorite is tentatively classified as E7. It resembles Ilafegh 009 (Geochim. Cosmochim. Acta, v. 59, p. 161, 1995).
2.43 kg
