Abstract:Marginal marine placer is one of the mineral resources with the most largest potentiality in the world. It is only next to oil and gas. The marginal marine placer are rich in eastern coastal areas in Mozambique, and occupies an important position in the world. In this paper, combining with zirconium ilmenite deposit in 5004C mining area of Zambezia province in Mozambique, characteristics of ore quality, such as ore structures, ore compositions, contents and changes have been analyzed. It wll provide favorable information for the exploration and development of zirconium ilmenite deposit in eastern coastal areas of Mozambique.