Combination of light brown, lustrous calcite and sprays and acicular aggregates of strontianite on purple and yellow fluorite matrix. Note curved terminations and 'bow-tie' forms as indicative of strontianite. In very fine condition although strontianite shows typical abrasion here and there. From the great mining days of Cave-in-Rock. Dr. Perry & Anne Bynum Collection. Note: Minerva #1 is attributed locality, may also be from Ozark-Mahoning property adjacent to Minerva.