Strontianite, Rosiclare Level, Minerva #1 Mine, Inverness Mining Co. attr., Cave-in-Rock District, Southern Illinois, Kalaskie Collection #31, Miniature 3 x 4.5 x 7cm $200. Online 10/31
Brecciated shale and altered matrix covered with sharp sprays and 'bow-tie' strontianite aggregates. A very excellent small cabinet specimen of this strontium carbonate from mining ca. 1980. Location probably from the North Bishop Tract which was active at this period. In excellent condition. Betty Kalaskie Collection #31.