“Sallie Chase, a Methodist, had [a peep stone] and people would go for her to find lost and hidden or stolen things.” — C. R. Smith1
Sally Chase was a treasure hunter and, according to Lucy Mack Smith, she owned a "green glass" or stone that she used as a divination tool to see or locate objects.2
Reportedly, Sally used the stone to try and locate the golden plates that Joseph Smith had hidden. She guided a group of men to the Smith family's cooper shop, and the mob turned the shop inside out—even ripping up the floorboards and finding the decoy box Joseph had left. The mob left empty-handed. Joseph had hidden the plates up in the cooper shop loft.2