Submit a Picture

Where is My Picture?!

The Queue

Met Name

Met Type

Thin Sections

754.3 grams. 80 x 60 x 65 mm.   Mesosiderite
Fall not observed. Found 1988 in Antarctica.
Location Map of Antarctic Finds



AMN writes:

Macroscopic Description - Roberta Score

MAC88102 is an angular, considerably weathered mesosiderite. Small patches of dull fusion crust are scattered over the red brown exterior. There are abundant large weathered silicate inclusions as large as 1 x 2.5 cm, which are greenish to black in color. This specimen broke along a pre existing fracture exposing extremely weathered material with abundant powdery rust. Most likely this is not representative of the entire meteorite. The metal is still very coherent, as obtaining a chip from other than along a pre-existing crack was nearly impossible.

Thin Section Description (,5) - Brian Mason

The section consists largely of nickel-iron.. with a minor amount of silicate material. Much of the silicate material is comminuted pyroxene and plagioclase, but with some clasts up to 24 mm long; a little olivine and accessory tridymite and merrillite are present. Most of the pyroxene has a uniform composition Wo3Fs30, but a few more calcic grains were analysed. The composition of an olivine clast is Fa18. Plagioclase compositions are in the range An86-95. The meteorite is a mesosiderite.