Turquoise is a translucent to opaque gemstone. It exhibits a range of blue and green colors from sky-blue to blue-green to apple-green. On Mohs’ scale of hardness, turquoise is 5-6. Sources include Iran (near Nishapur), Afghanistan, Argentina, Australia, Brazil, China, Israel, Mexico, Tanzania, and the United States.
Color
Turquoise exhibits a range of blue and green colors from sky-blue to blue-green to apple-green.
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