Abstract: In the proposed method a solid specimen is cleaved to obtain a pair of conjugate cleavage surfaces. Then, a scanning electron microscope is used to obtain images of the conjugate surfaces at a predetermined magnification. The images are superimposed to produce an image of a porous component of the solid structure. Thereafter, the image of the porous component is superimposed on each image of the conjugate surfaces to obtain a pair of images of imprints of solid grains. The image of pores and grain imprints is then converted to a contour form, all converted images are superimposed, and a contour image of the entire structure of the solid is obtained. The images of pores, grain imprints and complete structure of the solid are quantitatively analyzed with the aid of image analyzers, digitized and fed into a computer for calculation of the solid properties of interest, e.g., perviousness, using an appropriate program.