Synthesis of Magnetite Nanoparticles by Top-Down Approach from a High Purity Ore

Table 1

Mineralogical data of the magnetite deposit from Panvila, Sri Lanka.

Physical properties
Colour	Black
Crystallography	Cubic octahedron
Hardness	5.5–6.5
Specific gravity	6.0–6.5
Streak	Black
Lustre	Metallic
Cleavages	Parallel/octahedron surfaces
Surface	Silky