Morenci is a famous turquoise coming from the Morenci copper mine. The history of Morenci is found in Turquoise in America Part Two, 1910-1990.
 
This cabochon weighs 29 carat and measures 2.5cm X 2cm. It is priced at $45 a carat or $1,305. It is not treated and is backed. I have assigned a TG of 91 or GG. Gem grade Morenci is very rare. I purchased this cab from Brown’s Trading. White spot is camera flash.