Mineralogia y texturas del meteorito de Nulles (coleccion del M.N.C.N., Madrid)

Abstract

The mineralogical and textural fea tu res of the Nul/es meteorite are studied by optical microscopy, SEM, and electrone microprobe. Olivine and plagio clase are the main primary phases of the silicate minerals, with the subsequent formation of epidote, from the oligoclase. The metal/ic phase consists of kamacite, taenite and troilite, with variable proportions of their Fe and Ni contents. The main textures reflect, apart of deformation, the existence of chondrules, intergrowths and seudomorphisms.