Abstract
The principal data are collected about the fall and the distribution of the fragments of the Valdinizza, Italy, meteorite. A complete individual, weighing 872 g, preserved in the United States National Museum, Washington, D. C., is described in some detail. The mineralogical composition is olivine, Fa25; hypersthene, Fs23; plagioclase, An10; maskelynite; nickel‐iron; troilite; chromite; ilmenite and possibly a phosphate mineral. Valdinizza is a fairly typical hypersthene chondrite, belonging to the type 6 chondrites of Van Schmus and Wood (1967); its structure shows evidence of a period of high‐temperature recrystallization; interesting features of shock‐metamorphism are notable, the microtexture deformations suggesting a high level of stress
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