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Petrographic Descriptions (Select a sample)
| Sample No.: | LAP 04779 |
| Location: | LaPaz Ice Field |
| Field No.: | 17823 |
| Dimensions (cm): | 1.0x1.0x1.0 |
| Weight (g): | 1.849 |
| Meteorite Type: | Ureilite |
Macroscopic Description: Kathleen McBride
40% of the exterior surface has brown/black fusion crust. The soft interior is rusty black and very weathered.
Thin Section (,2) Description: Tim McCoy and Valerie Reynolds
The section consists of an aggregate of large olivine and pyroxene grains up to 2 mm across. Individual olivine grains are rimmed by carbon-rich material containing traces of metal. Olivine has cores of Fa22, with rims reduced to Fa4. The meteorite is a ureilite.
Thin Section Images
| Cross-Polarized Light LAP 04779 |
Plane-Polarized Light LAP 04779 |
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Lab Images
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