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Petrographic Descriptions (Select a sample)
| Sample No.: | LAP 031043; LAP 031165; LAP 031195; LAP 031268; LAP 031299 |
| Location: | LaPaz Ice Field |
| Field No.: | 16435; 16670; 16682; 16813; 16980 |
| Dimensions (cm): | 3.0x2.5x1.0; 4.0x3.0x3.0; 1.25x1.25x0.25; 3.0x2.5x2.0; 2.5x1.75x1.25 |
| Weight (g): | 8.121; 27.000; 0.625; 15.407; 6.927 |
| Meteorite Type: | CM2 Chondrite |
Macroscopic Description: Kathleen McBride
Black polygonally fractured fusion crust is on the exterior of these meteorites. The interior of these carbonaceous chondrites is a black powdery matrix with light gray and white chondrules and inclusions.
Thin Section (,2) Description: Tim McCoy
The sections consist of a few small chondrules (up to 0.5 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa1-48; rare orthopyroxenes are Fs1-38. The matrix consists pre-dominantly of an Fe-rich serpentine. The meteorites are CM2 chondrites.
Thin Section Images
| Cross-Polarized Light LAP 031043 | Plane-Polarized Light LAP 031043 | Reflected Light LAP 031043 |
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| Cross-Polarized Light LAP 031165 | Plane-Polarized Light LAP 031165 | Cross-Polarized Light LAP 031195 | Plane-Polarized Light LAP 031195 |
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| Cross-Polarized Light LAP 031268 | Plane-Polarized Light LAP 031268 | Cross-Polarized Light LAP 031299 | Plane-Polarized Light LAP 031299 |
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Lab Images
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