Introduction: The dominant cause for lunar visible color differences is variations in the degree of soil maturity and the abundance of FeO and opaque minerals, such as ilmenite. The addition of opaque minerals to a lunar soil tends to decrease the overall reflectance and continuum slope (darkens and decreases “redness”). As a soil weathers its reflectance is also lowered but its slope increases...

It is well known that oriented iron and titanium oxide inclusions occur in pyroxenes and plagioclase of anorthosites and granulites, and they are attributed to exsolution at subsolidus conditions. The oxides occur as needles or platelets. In this study, we determine the morphology of oxide needles as well as their orientation in plagioclase (An 30–35) in anorthosite gneiss from the Adirondack m...

We present a model for the lattice vibrational density of states MgTiO3 (geikielite) and FeTiO3 (ilmenite) that predicts thermodynamic properties, in agreement with observational data. The is based on Kieffer’s method combined spectroscopic For both substances experimental data sets are influenced by non-stoichiometry. geikielite affects volume, whereas ilmenite volume bulk modulus affected. sh...

A common feature shared by all pyrometallurgical smelting processes is the production of slag. Slag is usually a byproduct of metal production, although there are processes (such as ilmenite smelting, for example) where the slag is the principal product. Most slags contain a significant amount of heavy metals, the release of which can cause environmental problems. However, the recovery of these...

dability of limestone in their mixtures. This behavior may be attributed to the Representative samples limestone, ilmenite, and quartz, were dry batch ground separately binary mixtures – ilmenite limestone-quartz different compositions ball mill. The study aimed investigate effect mixture composition on mill product characteristics as reflected each two components. results indicated that quartz...

Figure 1 depicts the basic magnetic separation technologies now available in the marketplace in terms of field intensities and modes of processing. LIMS and scalper magnets are not detailed in this paper. The selection of magnetic separation technology depends on many processing factors, including particle size, and the specific assemblage of minerals and grades as well as their corresponding m...

The mass production of highly dense oxides with high-temperature and high-pressure phases allows us to discover functional properties that have never been developed. To date, the quenching of highly dense materials at the gramme-level at ambient atmosphere has never been achieved. Here, we provide evidence of the formation of orthorhombic Fe2TiO4 from trigonal FeTiO3 as a result of the high-tem...

The microwave absorbing characteristics of magnetic separation products (magnetic and non-magnetic) of reductive products of ilmenite concentrate were measured by the method of microwave cavity perturbation and the magnetic separation products were characterized by X-Ray Diffraction (XRD). It was demonstrated that metallic iron was a strong microwave absorbing material, while TiO2 was a weak mi...