Sample No.:	PRA 04401; PRA 04402
Location:	Mt. Pratt
Field No.:	15719; 15703
Dimensions (cm):	3.5x3.5x2.5; 4.5x3.5x2.0
Weight (g):	54.979; 37.759
Meteorite Type:	Howardite

Macroscopic Description: Kathleen McBride
20-50% of the exteriors have thin, shiny patches of black fusion crust. The interiors are charcoal gray to black matrix with no metal visible.

Thin Section (,2) Description: Tim McCoy and Valerie Reynolds
The meteorites are so similar that a single description suffices. The sections show a groundmass of comminuted pyroxene and plagioclase (up to 0.5 mm) with fine- to coarse-grained basaltic clasts ranging up to 5 mm. PRA 04401 contains particularly abundant CM2 clasts. Orthopyroxene compositions span a range of Fs_16-60Wo_1-3, although a single grain of Fs₁ was observed, presumably from the CM2 clast. The Fe/Mn ratio is ~30 and feldspar is anorthitic (An_87-90). The meteorites are howardites.

Thin Section Images

Cross-Polarized Light PRA 04401	Plane-Polarized Light PRA 04401

Cross-Polarized Light PRA 04402	Plane-Polarized Light PRA 04402

Lab Images