Petrographic Descriptions (Select a sample)
Antarctic Meteorite Newsletter 31,1 - Petrographic Descriptions
| Sample No.: | LAR 06318 |
| Location: | Larkman Nunatak |
| Field No.: | 19596 |
| Dimensions (cm): | 4.0 x 3.0 x 2.0 |
| Weight (g): | 25.035 |
| Meteorite Type: | CM2 Chondrite |
| Pairing: |
Macroscopic Description: Kathleen McBride
The exterior of this meteorite has 40% purplish patches of fusion crust with polygonal fractures. The interior is dark gray to black with light colored, gray to tan inclusions and chondrules.
Thin Section (,2) Description: Tim McCoy, Linda Welzenbach and Cari Corrigan
The section consists of abundant small chondrules (up to 1 mm), chondrule fragments, mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa0-54 and orthopyroxene is Fs1-4. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a CM2 chondrite.
Thin Section Images
| Plane-Polarized Light LAR 06318 |
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Lab Images
| North View LAR 06318 |
South View LAR 06318 |
Splits View LAR 06318 |
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