50s 60s vintage lilac purple gingham fabric, silky crisp acetate or rayon blend?

Mid-century vintage gingham checked fabric in a lilac color, so pretty! This is not your usual workaday gingham made for utility wear, it's a crisp, slightly silky material, maybe a acetate or rayon blend? Fun for a retro party dress, or a full skirt. This is a 45" wide fabric, 3 1/2 yards in very good condition.