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Petrographic Descriptions (Select a sample)
| Sample No.: | MCY 05229; MCY 05230; MCY 05242; MCY 05245; MCY 05251 |
| Location: | MacKay Glacier |
| Field No.: | 17344; 17392; 13659; 13639; 17348 |
| Dimensions (cm): | 3.5x2.5x1.5; 4.5x4.5x2.0; 1.5x1.5x0.5; 1.5x1.0x0.5; 3.5x3.5x2.5 |
| Weight (g): | 9.746; 60.070; 1.982; 1.258; 25.253 |
| Meteorite Type: | CM2 Chondrite |
Macroscopic Description: Kathleen McBride
The fusion crust on the exteriors of these carbonaceous chondrites range from brown to black to purplish patches and some have polygonal fractures. The interiors are a black soft matrix with mm sized white inclusions.
Thin Section (,2) Description: Tim McCoy and Emma Bullock
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 Fa0-40, pyroxene is Fs1-6. The matrix consists pre-dominantly of an Fe-rich serpentine. The meteorites are CM2 chondrites.
Thin Section Images
| Cross-Polarized Light MCY 05229 | Plane-Polarized Light MCY 05229 | Cross-Polarized Light MCY 05230 | Cross-Polarized Light MCY 05230 |
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| Plane-Polarized Light MCY 05230 | Cross-Polarized Light MCY 05242 | Plane-Polarized Light MCY 05242 | Cross-Polarized Light MCY 05245 |
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| Plane-Polarized Light MCY 05245 | Cross-Polarized Light MCY 05251 | Plane-Polarized Light MCY 05251 |
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Lab Images
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