PETROGRAPHY
Source: 567
Pe‐trog″ra‐phy (?), n. [[Petro + -graphy.]] 1. 1. The art of writing on stone.
2. 2. The scientific description of rocks; that department of science which investigates the constitution of rocks; petrology.
Source: 567
Pe‐trog″ra‐phy (?), n. [[Petro + -graphy.]] 1. 1. The art of writing on stone.
2. 2. The scientific description of rocks; that department of science which investigates the constitution of rocks; petrology.