Antarctic Search for Meteorites (ANSMET) Search this
Weight:
0.302 g
Place:
Antarctica
Collection Date:
1986
Notes:
# NASA data for LEW 86498 Pairing: LEW 86211
A 72.6 gram specimen (LEW86211,3), 4.1 x 2.9 x 2.8 cm, was broken from a larger mass during processing, resulting in approximately two-thirds of its surface area being original exterior and the remainder being interior. The exterior surface is weathered fusion crust, predominately reddish brown in color, containing occasional patches of retained black fusion crust. There are areas of iridescent coloring, and while smooth to the touch, the surface has an unusual roughness and angularity of appearance when viewed with low magnification. There are occasional very small areas (0.1 to 0.5 mm) of bronze colored material. The broken surface areas have a hackly appearance and a predominately yellow color that varies from pale brass yellow to bronze yellow. Under magnification (20x) the yellow material is seen to be present as globules, as fracture surfaces and crystal faces, and as fine filaments. A few small areas appear to be vugs coated with a drusy material. Whether these vug fillings are indigenous or a weathering phenomenon is not clear. A few very small areas of silicates appear to be present as is an occasional chromite.
