Fine red iron oxide pigment, and paint or resin composition using the same

摘要

A fine red iron oxide pigment of the present invention comprises hematite particles and having a geometrical standard deviation of major axial diameter of not more than 1.5, a geometrical standard deviation of minor axial diameter of not more than 1.3 and an average major axial diameter of 0.005 to 0.1 m. Such fine red iron oxide pigment is uniform in both major axial diameter and minor axial diameter thereof and exhibits an excellent transparency.