Ceramic square magnets, also known as ferrite block magnets, are relatively cheap and temperature-resistant magnets. They are relatively common, with a density of 4.7-5g/cm3 and a Curie temperature of 450°C. They are widely used and have larger sizes. Square ferrites can be used in magnetic separation applications, while smaller square ferrites are often used for adsorption and induction. Below is a list of ferrite square magnets of various sizes and shapes. See which one you want. species, can be customized.