Boltz Auction Company, 3601 Columbia Ave., Lancaster, has announced the upcoming auction of the rock, mineral and fossil collection of Jim and Mimi Stauffer. An in-person and online auction will take place on Saturday, Oct. 12, at 10 a.m.

In addition to the live auction, Boltz Auction Company will facilitate two online auctions, offering additional opportunities to view and bid on select items from the collection. The first online auction will close on Thursday, Oct. 10, at 7 p.m. The second online auction will close on Friday, Oct. 11, at 7 p.m.

Previews are scheduled by appointment. For more information and to schedule an appointment, call 717-392-4257.