Newsletter |
43,1 |
Location |
Grosvenor Mountains |
Field Number |
25519 |
Dimensions (cm) |
5.4 x 4.0 x 2.2 |
Weight (g) |
92.43 |
Original Classification |
L3.4 Chondrite |
Pairing |
GRO 17026;
GRO 17167;
GRO 17177;
|
Fayalite (mol%): 6-26;Ferrosilite (mol%): 3-17 |
B |
A |
70% - 90% of the exteriors are covered with black/brown rough fusion crust with some pitting, larger fractures and numerous small iridescent weathering spots. Areas without fusion crust show abundant inclusions/chondrules in grey matrix with some red-brown varnish also present. Interiors are dark grey to black matrix with abundant inclusions/chondrules, some large (up to 4 mm) that range in color from dark brown to light grey. Oxidation is scattered throughout and there are areas of rust. |
The sections exhibit numerous well-defined chondrules (up to 1.5 mm) in a black matrix of fine-grained silicates, metal and troilite. Weak shock effects are present. Polysynthetically twinned pyroxene is abundant. The meteorites are moderately weathered. Silicates are unequilibrated; olivines range from Fa1-36 and pyroxenes from Fs3-17. The meteorites are L3 chondrites (estimated subtype 3.4). |