…a semi-precious stone, typically opaque and of a greenish-blue or sky-blue colour, consisting of a hydrated phosphate of copper and aluminium…
…a semi-precious stone, typically opaque and of a greenish-blue or sky-blue colour, consisting of a hydrated phosphate of copper and aluminium…
…a town in southeastern Arizona, near the Mexican border; population 5,991 (est. 2008). An artists' colony, it was a copper mining center in the early 1900s and is noted as the source of Bisbee turquoise, an incidental byproduct of the copper mining…
