German Saphir (Yogo) Cited by user Ulanwp on 20 Nov 2022 Yogo sapphires (kurz Yogos) sind Saphire aus der Schlucht Yogo Gulch in Montana. Die Schlucht liegt in den Little Belt Mountains in den Rocky Mountains, im Judith Basin…
English Yogo sapphire Cited by user Citation bot on 06 Jan 2012 Yogo sapphires are a variety of corundum found only in Yogo Gulch, part of the Little Belt Mountains in Judith Basin County, Montana, United States, on land once…