Newsletter |
25,1 |
Location |
Queen Alexandra Range |
Field Number |
12492 |
Dimensions (cm) |
1.25 x 0.75 x 1.00 |
Weight (g) |
1.66 |
Original Classification |
H Chondrite (Impact Melt) |
Fayalite (mol%): 18;Ferrosilite (mol%): 16 |
C |
C |
The exterior is completely covered with dull, black fusion crust that is rusty in areas. The interior is a dull, rusty color that is very fractured. |
The meteorite is dominated by a fine-grained texture with olivine and pyroxene grains and chondrule fragments ranging up to 200 microns in diameter. The matrix contains abundant fine-grained (dominantly less than 25 microns in diameter) metal-troilite intergrowths with concave boundaries between the two phases, suggestive of rapid cooling. Silicates are homogeneous with olivine of Fa18 and orthopyroxene of Fs16. The meteorite appears to be a shock or impact melt from an H chondrite. |