“Bornite and Prehnite. Specimen is from the collection at Yale University, New Haven Connecticut, USA #9701 (1971). Scale at bottom of image is an inch with a rule at one cm. https://images.collections.yale.edu/iiif/2/ypm:569ea44b-3881-4237-8d5c-1bdfce167558/full/full/0/default.jpg [link to collection specimen] ”