The art of writing or inscribing on stone.
The study of rocks; lithology; petrology.
By detailing the mineral content and the textural relationships within the rock, a process known as petrography, they found that 99% of the samples could be matched to rocks found in this particular set of outcrops.
After dinner Ann Veronica went into the drawing-room with Miss Stanley, and her father went up to his den for his pipe and pensive petrography.
The word 'petrography' comes from Greek roots meaning 'rock' and 'writing'.