Wiktionary
n. turquoise that comes from copper mines located in the vicinity of Bisbee, Arizona.
Wikipedia
thumb|275px|Bisbee turquoise commonly has a hard chocolate brown colored matrix. Bisbee Blue or Bisbee turquoise refers to the turquoise that comes from copper mines located in the vicinity of Bisbee, Arizona. Bisbee turquoise can be found in many different shades of color and quality, from soft, low quality pale blue to the quality hard brilliant blue turquoise and almost every shade of blue in between. The highest grade of Bisbee Blue turquoise is almost lapis lazuli blue and has a brownish red spiderweb matrix. Green turquoise is also found in Bisbee, but is not usually of very high quality.
The Bisbee Blue are a amateur collegiate summer league team. They were a professional baseball team based in Bisbee, Arizona. The team was a member of the Pecos League, an independent baseball league which is not affiliated with Major or Minor League Baseball. They played at Warren Ballpark and began operations with the 2014 season. After the season, the Blue chose to leave the Pecos League in order to play in the Kino League as an amateur team. They are scheduled to return to the Pecos League in 2016.
Usage examples of "bisbee blue".
It was turquoise, all righta polished oval piece several inches long, with the sensuous glow I had learned to recognize as Bisbee Blue.