The Pilot Mountain turquoise mine is located in western Nevada. It first began as a copper mine but it was soon realized that the turquoise found there was extremely high quality. Pilot Mountain turquoise is known world wide for it vast array of colors and quality. One of the mines made famous for its extremely rare ability to form dendrites (manganese) in the turquoise. Pilot Mountain turquoise also produces some very high grade spiderweb stones, with interesting web matrix patterns that include red, brown, and black colors. It is a hard stone and so takes to a good shine that retains color longer and is resistant to skin oils.