[meteorite-list] Acapulcoites and NWA 725
From: bernd.pauli_at_paulinet.de <bernd.pauli_at_meteoritecentral.com>
Date: Thu Feb 16 16:01:45 2006
Hmm-ing again :-)
"The winonaites are texturally similar to acapulcoites, but the winonaites
contain coarser grains and abundant crosscutting metal-sulfide veins."
Could this by a typo because:
Marvin's pic of the Acapulco thin section shows grains that are coarser
than the ones of NWA 1054 ...
The Antarctic acapulcoite TIL 99002 is mineralogically similar to GRA 98028
but has a larger grain size (300-400 ?m) than GRA 98028 (50-100 ?m).
(Met.Bull. 86, MAPS 37-7, July 2002).
.. and now back to Hutchison who states in Table 8.2 on page 252:
Grain-size of acapulcoites => 150-230 ?m
Grain-size of winonaites => 55-230 ?m
Received on Thu 16 Feb 2006 04:01:43 PM PST