Assay Lab tools The Juneau-Douglas City Museum was fortunate to receive a significant collection from the U.S. Bureau of Mines when the John Rishel Mineral Center on Mayflower Island closed in 2007. In the gift shop, we have crucibles, scorifier dishes, and cupels of various sizes. For more information on how these items were used in the mine, visit the Assay Lab diorama at the Juneau-Douglas City Museum. Various |
