Antarctic Search for Meteorites (ANSMET) Search this
Place:
Antarctica
Collection Date:
1979
Notes:
# NASA data for EET 79001 Weathering: Ae Fracturing: A Fa: 23-27 mol % Fs: 16-67 mol % ²⁶Al: 23 ± 3 dpm/kg
All but one surface of this achondrite (22 x 17 x 14 cm.) is covered with black fusion crust, but there are areas on all surfaces where the fusion crust has been plucked away. One surface has a deep regmaglypt that is covered with fusion crust. The areas devoid of fusion crust are white-gray in color and the matrix appears porous. Veins (~ 0.5 mm wide) of dark material criss-cross each other. Whitish-yellow clasts (Grimm diameter) are scattered all over this achondrite. Most of the specimen appears very fine-grained but a small part near the E surface has a different lithology.<br /><br />Sawing this meteorite exposed a light colored interior with rounded white clasts, as large as 0.5 cm in diameter. Several large black fine-grained clasts as large as 2.5 cm are scattered over the cut face. Some of these black clasts contain glass lined vugs. Upon chipping one of these clasts containing a vug, the entire clast popped out easily with no matrix adhering to the clast. Numerous veins of black material criss-cross each other. Most of these veins run through a black clast. The longest vein is 14 cm long. Near the W end of the cut face are brownish colored clasts which may or may not be pyroxene. Ninety percent of the cut face is fine-grained. Ten percent (near the E end) of the cut face consists of intergrown pyroxene and feldspar in a basaltic texture.
