Winner of free signed copy of Mineralogy of Arizona and homemade mineral label bookmark is…..Luke Semler!! Check out the video—Luke guessed the total of the rolled dice to be 77. It was 87–congrats Luke! I’ll contact you to arrange for the free shipping or you might stop by the museum to pick up your prize! We enjoyed a fun-filled day with a lot of rocks and minerals brought in by the curious public to be identified by our team of experts. Several people relayed that they couldn’t make the trip