Sparkly, silvery dyscrasite microcrystals RICHLY cover a matrix of SOLID, mammilary, native arsenic on this HISTORIC old-timer from the famous Samson Mine at St. Andreasberg, Germany. This is a showy and excellent combination piece from this famous mine, which closed in 1910. This old-timer comes from an old European collection, where everything dates to the 1800s. This whole collection had myriad old materials, though I cannot name the owner, and was well known in Europe. Accompanied by an old handwritten German label. Seldom do you see such old pieces this well documented.