Arctic opal

ARCTIC OPAL
Arctic opal is a blue-green stone that is a mixture of azuritea and malachite; it is not a type of opal at all. Arctic opal is mined in the Wrangle Mountains and the Chugach Mountains of Alaska, USA (near Anchorage).

Arctic Opal: Is not an actual opal, but a blue-green stone mined in the Wrangle and Chugach Mountains of Alaska that is a mixture of azurite and malachite.
Arizona Ruby: See pyrope garnet.

See also: Aqua regia, Lead, Lustrous, Ivory, Malachite