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Petrographic Descriptions (Select a sample)
| Sample No.: | LAP 031275 |
| Location: | LaPaz Ice Field |
| Field No.: | 16190 |
| Dimensions (cm): | 2.75x1.25x1.25 |
| Weight (g): | 6.148 |
| Meteorite Type: | R Chondrite |
Macroscopic Description: Kathleen McBride
Brown/black fusion crust with oxidation halos covers 100% of this meteorite’s exterior surface. The interior has a gray matrix with rust and small black inclusions.
Thin Section (,2) Description: Tim McCoy
The section consist of rare, well-defined, chondrules (up to 1 mm) set in a recrystallized matrix of silicates and sulfides (both troilite and pentlandite). Olivines are nearly homogeneous (Fa38-42, with a small tail of analyses down to Fa17) and a singe pyroxene is Fs24. The meteorite is an R chondrite of type 5.
Thin Section Images
| Cross-Polarized Light | Plane-Polarized Light |
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Lab Images
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