Newsletter |
45,2 |
Location |
Grosvenor Mountains |
Field Number |
25564 |
Dimensions (cm) |
2.8 x 2.3 x 2.5 |
Weight (g) |
22.70 |
Original Classification |
Achon. Ungrouped |
Fayalite (mol%): 7;Ferrosilite (mol%): 7 |
B/C |
A/B |
Rough black fusion crust with fractures and rust spots covers about 40% of the exterior. Exposed area is grey matrix that is heavily weathered with a dark red-brown varnish covering most of it. Fresh interior is grey matrix with orange rust and metal inclusions throughout. |
The section consists of a fine to medium equigranular mixture of olivine (Fa7) and pyroxene (Fs7Wo1) with plagioclase that poikilitically encloses mafic silicates. No chondrules or relic chondrules were observed. Veins of, and areas enriched in metal and/or sulfide occur commonly. This meteorite is an ungrouped primitive achondrite, possibly either in the acapulcoite/lodranite or part of the winonaite/IAB group. |