arctic midnight blue earrings mammoth ivory blue resin rectangular 1Mammoth Ivory sourced from Yukon Blue Resin Sterling Silver 1. 8 x 1cm approx. This ethical ivory is sourced from the Klondike mining area of the Yukon. Mammoth roamed this area in herds until around 10000 years ago, when they became extinct. Gold miners often find mammoth tusks, the ivory from which has been preserved in permafrost since the last ice age. Aryn takes this ivory and uses semi precious stones and resins, as well as the ivory, to create