The earths microscopic minerals, even molecular and atomic minerals, play an important role in revealing the history of the earths development and the evolution of the mantle crust. As an important carrier of micro- geological action mechanism, micro scale minerals can solve the problem of migration and circulation of crust and mantle materials. In order to focus on this view, we need to turn our attention to one of the carriers of these micro- sized minerals: podiform chromitite. Podiform chromitites are the main source of chromium and rare mineral species in China. In recent years, with the application of experimental techniques such as single crystal diffractometer, micro- area and micro- diffraction and the progress of computer science and technology, many new achievements have been made in the mineralogical research of podiform chromitites. Deposits where micro scale minerals have been discovered include the Luobusa chromite deposit in Tibet, China, the Othrys deposit in central Greece, and the Loma Peguera deposit in the Dominican Republic. Thirteen micro scale minerals including luobusaite, linzhiite, naquite, zangboite, yarlongite, qusongite, titanium, qingsongite, badengzhuite, zhiqinite, wenjiite, kangjinlaite and jingsuite have been discovered in the Luobusa chromitite, and four micro scale minerals such as arsenotuekite, eliopoulosite, tsikourasite, grammatikopoulosite have been discovered in the Othrys ophiolite. They have been formally approved as new minerals by the Committee on New Minerals, Nomenclature and Classification of the International Mineralogical Society (IMA- CNMNC). The new minerals are named according to the place names of mineral discovery areas and their adjacent areas or scientists who have made outstanding contributions to geoscience research, and are mainly composed of transition elements (Fe, Cr, Ni, Mo, V, etc.), titanium silicide, carbide, nickel phosphide and natural elements. Through the study of the mineral chemical composition and crystal structure of these micro- nano minerals, and with the help of Focused Ion Beam (FIB) technology, we reflect the characteristics of micro minerals from BSE images, crystal structure images and other investigations. These discoveries greatly expand human understanding of the crystal structure and chemistry of mantle minerals and provide a basis for further interpretation of the physical and chemical properties of the mantle. The reduction environment produced by these ultra- high pressure micro- nano minerals will provide new insights into the physical and chemical conditions and material composition of podiform chromite and even the deep mantle we have studied, and at the same time, the composition of micro minerals will also give a reasonable explanation for the study of crust- mantle material cycle.