FIELD: biology, medicine, in particular histological investigation of shells with natural surface by using light-optical microscope. ^ SUBSTANCE: claimed method includes surface relief investigation by using plane field microscope in reflected light at one-side falling shadow-forming lighting. Light-reflecting ability of specimen surface is provided by silver impregnation. Said impregnation is carried out by specimen hold in 10 % silver nitrogen solution for 10 min followed by reducing thereof with 1 % ascorbic acid solution for 1 min. ^ EFFECT: method for investigation of natural shell surface relief of improved quality due to visual representation of surface three-dimension image on tissue level. ^ 3 cl, 4 dwg
