Yes, iron sand is magnetic.
Iron sand's magnetic properties are due to its high concentration of iron-containing minerals, primarily magnetite (Fe3O4). Magnetite is a naturally occurring magnetic mineral, making iron sand readily attracted to magnets. This characteristic is what makes iron sand valuable as a source of magnetic minerals for various industrial applications. You can often find iron sand along coastlines because wave action and erosion concentrate these heavier iron-containing minerals. The ease with which it can be separated using magnets contributes to its industrial utility.