The modern name for the blue to green mineral – one of the very first to be mined – comes from an Old French word for Turkish.
The name dates from the 16th Century when the mineral was brought to France from Turkey, sourced from what is now North East Iran.
Turquoise was thought to have protective and preventative qualities, and to change colour depending on its wearer’s state of health and fortune.
(Image: Turquoise beads. Photo, Cobalt123)