Sample Petrographic Description
| Sample Number | LAR 06659 |
| Newsletter | 32,2 |
| Location | Larkman Nunatak |
| Field Number | 19513 |
| Dimensions (cm) | 2.5 x 2.0 x 1.75 |
| Weight (g) | 20.18 |
| Original Classification | EL4 Chondrite |
| Pairing | LAR 066626; LAR 06626; LAR 06659; |
| Mineral Composition (%Fa & %Fs) | |
| Ferrosilite (mol%): 0-2 | |
| Weathering | |
| Ce | |
| Fracturing | |
| B | |
| Macroscopic Description - Kathleen McBride | |
| The exterior of 626 has thin black patches of fusion crust; 659 has no fusion crust. The interiors are a dense chocolate brown to black matrix with high metal and some weathered inclusions. | |
| Thin Section Description (,2) - Cari Corrigan, Tim McCoy, Linda Welzenbach | |
| The sections show an aggregate of chondrules (up to 1.5 mm), chondrule fragments, and pyroxene grains in a matrix of about 30% metal and sulfide. Chondrules contain moderate to small abundances of olivine. Weathering is modest, with staining of some enstatite grains and minor alteration of metal and sulfides. Pyroxene is Fs0-2; no olivine grains were analyzed. Metal contains 0.5-0.6 wt% Si. The meteorites are type 4 enstatite chondrites. The Si concentration in metal would suggest classification as EL4. Pairing is tentative. | |
| Antarctic Meteorite Images for Sample LAR 06659 | ||||
| Field Photo(s) : | ||||
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| Field photo image(s) courtesy of the ANSMET (ANtarctic Search for METeorites) Program, Case Western Reserve University and the University of Utah | ||||
| Antarctic Meteorite Images for Sample LAR 06659 | ||||
| Thin Section Photo(s) : | ||||
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