| This specimen was collected by Joe Marty, famous worldwide and member of the Micromineral Hall of Fame. He has discovered a multitude of new species including Martyite, named for him. Gypsum from the Hidden Treasure is usually a coating on Hemimorphite. This Gypsum specimen actually has typical Gypsum crystals. ex Joe Marty collection. Anything larger than a micro is a rarity from the Joe Marty collection which is thousands of micromounts, no thumbnails, no miniatures, no cabinets, no museum sized specimens. Anything larger than a micro are smashed into micros |