The Odessa, Texas, Siderite (ECN =+ 1025,318)*

This paper presents certain historical facts relating to the discovery of meteorites in the neighborhood of the Odessa, Texas, Meteorite Crater; a discussion of the distribution and other characteristics of the meteoritic materials so far recovered by surface and subsurface search at that crater; a detailed mineralogical and metallographic study of the metallic phase of the meteorite; and chemical and radiochemical analyses of the sideritic material. The results of the investigation, insofar as they relate to the unaltered nickel-iron, are consonant with the classification of Odessa as a coarse octahedrite (Og). Two (2) figures and 2 tables are given.