Compositional, structural, and magnetic variations in Waipipi titanomagnetites

Abstract

The structural and compositional variations of titanomagnetites derived from New Zealand ironsands were investigated utilising XRD and electron probe techniques. This in-depth analysis is correlated with the magnetic properties of the titanomagnetites, determined by the use of a saturation magnetisation balance. The ulvospinel content, titanium and magnesium analyses, and lattice parameter are demonstrated to be strongly related to a magnetic parameter defined as magnetic fraction.

Keywords:

• titanomagnetite
• ironsands
• molecular structure
• iron-rich composition
• magnetic properties
• magnetic minerals
• analysis