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Petrographic Descriptions (Select a sample)
| Sample No.: | GRA 06172 |
| Location: | Graves Nunataks |
| Field No.: | 17772 |
| Dimensions (cm): | 3.5 x 2.5 x 2.0 |
| Weight (g): | 21.069 |
| Meteorite Type: | CM2 Chondrite |
Macroscopic Description: Kathleen McBride
50% purplish black fusion crust with polygonal fractures covers the exterior. The exposed interior has a vesicular texture. The interior is a black matrix with light color chondrules
Thin Section (,2) Description: Tim McCoy and Linda Welzenbach
The section consists of a numerous minimally-altered chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa1-44, orthopyroxene is Fs3. The meteorite is a CM2 chondrite.
Thin Section Images
| Plane-Polarized Light GRA 06172 |
Cross Polarized Light GRA 06172 |
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Lab Images
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