Turquoise
Australasian Slate Quarry, Back Creek, George Town municipality, Tasmania, Australia
Large slab with a thin blue coating of turquoise from this historic slate quarry worked for over 100 years. Turquoise was found at the quarry in 1963, where it is found associated with wavellite and possibly variscite, as small veins up to 20mm in thickness in the walls of an adit on the western side of the quarry. Ex Mathew and Elizabeth Latham, ...