The Bancroft Collection. Description provided at the site:
“The collection is an international award winning mineral and gem collection donated to the department by Edward Bancroft. The minerals are displayed in a custom case donated by Dr. Peter and Virginia Bancroft. In June, 1999 the collection was updated with 21 new specimens.
The web site provides a wealth of information on the collection’s 67 minerals, including others currently not on display. The information includes a narrative description of the mineral, its complete chemical and physical properties, pictures of the specimen, maps of the specimen’s source area, and pictures of the mine.”