A professional who conducts studies of nonmetallic minerals used in horological industry.

• Performs experimental research concerned with projects, such as development of diamond tools and dies, fabrication of jeweled bearings, and development of grinding $T3laps III$T1 and wheels.
• Tests industrial diamonds and abrasives to determine grain size, pattern, crystalline orientation, goniometric features and other factors in order to appraise their suitability for use, using optical, x-ray, and other precision instruments.
• Repairs diamond and abrasive tools.
• Develops improved methods of fabricating silicon-carbide compounds into bearings and investigates substitution of other materials.