25 C.F.R. § 301.7 Stonecutting.
Title 25 - Indians
All stone used, including turquoise, is to be hand-cut and polished. This permits the use of hand- or foot-driven wheels.
Title 25: Indians
PART 301—NAVAJO, PUEBLO, AND HOPI SILVER AND TURQUOISE PRODUCTS; STANDARDS
§ 301.7 Stonecutting.
