Pilot Mountain is the generic name for turquoise from mines found in the Pilot Mountains of Nevada. They have a long history which may be found in Turquoise in America Part Two 1910-1990 and Part Three 1990-2020.
 
This cabochon weighs 19.6 carats and measures 3.25cm X 1.5cm. It is priced at $100 a carat or $1960. This came from a very few stones found of this grade and shows rare dendritic formation. It is not treated and backed. I have assigned a TG of 92 or GG. I purchased this stone from Bob Brucia who bought from the miner.