(CO3.5, S1, W3) Meteoritical Bulletin #87
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Northwest Africa 1757
Origin or pseudonym: Morocco-Algeria border
Place of purchase: Erfoud
Date: 2001
Mass (g): 361
Pieces: 1
Class: CO3.5
Shock stage: S1
Weathering grade: W3
Fayalite (mol%): 0.5-51.8
Ferrosilite (mol%): 1.04-30.18
Classifier: M. Bourot-Denise, MNHNP
Comments: ~30% matrix, many small CAIs
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