We are hosting an estate sale for a school of mines 1959 graduate, a mine ventilation engineer for the federal government and long-time Golden resident who has a personal minerals, gems and books collection of 60+ years. His wife was a graduate with a BA from Lindenwood College and was a published poet. The professor has a large collection of geological rocks, minerals and gems specimen collection, a massive collection of vintage books, historical books, geological books and much, much...