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Petrographic Descriptions (Select a sample)
| Sample No.: | LAP 04475 |
| Location: | LaPaz Ice Field |
| Field No.: | 17099 |
| Dimensions (cm): | 2.5 x 2.5 x 2.0 |
| Weight (g): | 13.784 |
| Meteorite Type: | L3 Chondrite |
Macroscopic Description: Kathleen McBride
The exterior of this meteorite is dark brown/black with polygonal fractures. The interior is black and rusty with moderate amounts of metal and mm sized and smaller light colored inclusions/chondrules.
Thin Section (,2) Description: Tim McCoy, Lauren LaCroix and Linda Welzenbach
The section exhibits numerous closely-packed, well-defined chondrules of a range of sizes (up to 3 mm) in a black matrix of fine-grained silicates, metal and troilite. Modest shock effects and weathering are present. Silicates are unequilibrated; olivines range from Fa5-37 and pyroxenes from Fs12-22. The meteorite is an L3 chondrite (estimated subtype 3.6).
Lab Images
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