turquoise that comes from copper mines located in the vicinity of Bisbee, Arizona.

Ajuga reptans (common bugle). / Ajuga genevensis (upright bugle).

A long blue shark, resembling a great white shark but smaller, of the species Prionace glauca.

plural of chalkhill blue

plural of common blue

A silver-blue butterfly, Polyommatus coridon, of the family Lycaenidae

A small blue butterfly, Polyommatus icarus, of the family Lycaenidae, of temperate Asia and Europe.

A bright blue butterfly, Polyommatus bellargus, of the family Lycaenidae.

A blue butterfly, Celastrina argiolus, of the family Lycaenidae.

plural of large blue