HUT 18033

Classification: Ordinary Chondrite L6

Explainer: This means that the sample is from an asteroid parent body. It represents early Solar System material which includes chondrules (small round melt droplets). It is from a very common type of chondrule-bearing meteorite called the ordinary chondrite class. This particular type is an ‘L’ type – meaning it has low concentrations of iron (i.e. iron metal). The meteorite is also a type 6 sample – which means that it has been moderately metamorphosed (heated and/or held under high pressure). You can see more about where this sample fits into the meteorite classification scheme by looking at this page.

Description: Taken from the Meteoritical Bulletin for HUT 18033

History: The meteorite was recovered as part of the Lost Meteorites of Antarctica project, which was funded in the UK by the Leverhulme Trust and supported by the British Antarctic Survey and the University of Manchester. These samples were collected as part of the project’s first field season in austral summer December 2018 – January 2019 by a two person field party consisting of Katherine Joy and Julie Baum. Found half buried within blue ice. Altitude 1164 m

Physical characteristics: Mass: 49.02 g. Pieces: 1. Dimensions: 5 × 3 × 3 cm. An elongate, light gray, whole stone with 70% black fusion crust exterior.

Petrography: Equilibrated texture with poorly defined chondrules (up to 1 mm in diameter). Metal and sulfide distributed throughout.

Mineral compositions and geochemistry: Mineral compositions and geochemistry: All analyses by EPMA. Olivine Fa25.9±0.3 (N=6), Pyroxene Fs21.6±0.4Wo1.5±0.2 (N=12).

Specimens: 48.06 g type specimen (main mass) held at the NHM.

Project comments: This meteorite was found mostly submerged within the ice and we had to chip it out to collect it.

Sample images and videos:

HUT 18033 sample in the field found submerged within the ice. Image: Lost Meteorites of Antarctica / The University of Manchester
HUT 18033 sample in the lab after defrosting. Image: Lost Meteorites of Antarctica / The University of Manchester
HUT 18033 sample in the lab after defrosting. Image: Lost Meteorites of Antarctica / The University of Manchester
HUT 18033 sample in the lab after defrosting. Image: Lost Meteorites of Antarctica / The University of Manchester