Sample No.:	MET 01051; MET 01056; MET 01057; MET 01211
Location:	Meteorite Hills
Field No.:	13823; 11366; 13179; 13812
Dimensions (cm):	8.8x5.6x5.0 7.8x4.5x5.0 8.0x3.8x3.0 2.7x1.7x1.7
Weight (g):	621.10; 397.1; 189.29; 10.60
Meteorite Type:	L3 Chondrite (Estimated 3.6)

   

Macroscopic Description: Cecilia Satterwhite
These ordinary chondrites have a dark gray to black matrix with oxidation scattered throughout. Gray, white and cream colored (mm to ½ cm sized) inclusions are visible. Some areas are rusty brown.

Thin Sections (,2) Description: Linda Welzenbach, Tim McCoy

MET 01051 Cross-Polarized Light	MET 01051 Plane-Polarized Light

These meteorites are so similar that a single description suffices. The sections exhibit numerous large, well-defined chondrules (up to 3 mm) in a matrix of fine-grained silicates, metal and troilite. Weak shock effects are present. Polysynthetically twinned pyroxene is extremely abundant. Olivines range from Fa_1-35; pyroxenes from Fs_2-25. The meteorites are L3 chondrites (estimated subtype 3.6). These meteorites are very likely paired with MET 00489 and MET 00621.

MET 01056 Cross-Polarized Light	MET 01056 Plane-Polarized Light	MET 01056 Cross-Polarized Light	MET 01056 Plane-Polarized Light

MET 01057 Cross-Polarized Light	MET 01057 Plane-Polarized Light	MET 01211 Cross-Polarized Light	MET 01211 Plane-Polarized Light

Description: Refer to the parent description given in the September, 2001 newsletter at:

http://www-curator.jsc.nasa.gov/antmet/amn/amnsep01/PetDes.htm#MET00400

Macroscopic Description: Cecilia Satterwhite
90% of the exterior of this small fragment has black/brown fusion crust with oxidation haloes.

Thin Section (,2) Description: Tim McCoy, Linda Welzenbach
The section is a breccia composed of angular isolated grains up to 1.0 mm and clasts of orthopyroxene (Fs_26-31Wo₂), anorthitic feldspar (An_90-95 Or_0-1), metal, troilite, oxides and graphite. The meteorite is a mesosiderite.

Cross-Polarized Light	Plane-Polarized Light	Reflected Light	Reflected Light

Macroscopic Description: Cecilia Satterwhite
90% black/brown fractured fusion crust covers the exterior of this ordinary chondrite. The interior is gray with heavy oxidation in areas and abundant gray and cream colored inclusions/chondrules present.

Thin Section (,2) Description: Linda Welzenbach, Tim McCoy
The section exhibits numerous small, well-defined chondrules (up to 1 mm) with fine-grained silicates, metal and troilite. Weak shock effects are present. Polysynthetically twinned pyroxene is extremely abundant. The meteorite is highly weathered. Silicates are unequilibrated; olivines range from Fa_1-23 and pyroxenes from Fs_1-23. The meteorite is an H3 chondrite (estimated subtype 3.8).

Cross-Polarized Light	Plane-Polarized Light	Reflected Light

Macroscopic Description: Cecilia Satterwhite
80% of the exterior has brown fusion crust with oxidation. Interior is dark gray to black with metal and oxidation visible.

Thin Section (,2) Description: Linda Welzenbach, Tim McCoy
The section shows an aggregate of small chondrules (up to 1 mm), abundant chondrule fragments, and pyroxene grains in a matrix of about 30% metal and sulfide. Several chondrules contain olivine. Weathering is moderate, with staining of enstatite grains and heavy alteration of metal and sulfides. Microprobe analyses show the olivine is Fa₁ , orthopyroxene is Fs_1-2 and metal contains 3.1 wt.% Si. The meteorite is an EH3 chondrite.

Cross-Polarized Light	Plane-Polarized Light	Reflected Light

Macroscopic Description: Cecilia Satterwhite
30% of this meteorite’s exterior has brown/black fusion crust with some oxidation. The interior is a light gray matrix with abundant clasts. Minor weathering is visible. Gray, white and cream colored inclusions are visible on the exterior and interior.

Thin Section (,2) Description: Tim McCoy, Linda Welzenbach
The section shows a groundmass of comminuted pyroxene (up to 3 mm) and plagioclase with fine- to coarse-grained basaltic clasts ranging up to 1 mm. Most of the pyroxene is augite with compositions ranging from Fs_37-84Wo_13-36 (Fe/Mn ~ 70), and plagioclase An_90-96. The meteorite is lunar, probably an anorthositic regolith breccia.

Cross-Polarized Light	Plane-Polarized Light	Cross-Polarized Light	Plane-Polarized Light

Macroscopic Description: Kathleen McBride, Cecilia Satterwhite
Exteriors of these acapulcoites have black/brown fusion crust with oxidation haloes. The interior is rusty brown with dark gray to black patches. Some metal is visible.

Thin Section (,2) Description: Tim McCoy, Linda Welzenbach
The meteorites are so similar that a single description suffices. The sections consist of an equigranular aggregate with grains up to 0.5 mm. Minerals include olivine (Fa_8-9,), orthopyroxene (Fs₈,), chromian diopside (Fs_3-4,Wo_44-46,), phosphates, metal and troilite. Metal and sulfide occur as large grains, veinlets and metal-sulfide blebs within orthopyroxene. Weathering is moderate, with extensive staining. The meteorites are acapulcoites and are very likely paired with MET 01195/01198/01244.