Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by
mindat.org
There are no ages for
Corundum
at
American Yogo Sapphire Mine (American Sapphire; Yogo Lapidary Company Mine; Sapphire Intl. Corp. Mine), Yogo Mining District, Judith Basin Co., Montana, USA