Systematics of Mössbauer absorption areas and their ratio in ordinary chondrites and application to a fallen meteorite in Nathdwara, India

Mössbauer absorption areas corresponding to 57Fe in olivine, pyroxene, troilite, and the metallic phase in ordinary chondrites exhibit certain systematic behavior. H chondrites occupy distinct regions on the plot of metallic phase absorption area versus silicate absorption area. While L/LL chondrites fall in separate region. The absorption area ratio of (olivine to troilite+kamacite) also show characteristic range in which H,L and LL chondrites fall. Based on these systematic, a fallen meteorite near Nathdwara, Rajasthan, India is suggested to be an L chondrite.