Works of "Research Collection"
Place Collected: Hwy. 37 Roadcut 5 Mi N of Bloomington
Place Collected: Caledonia Mine
Place Collected: Virgem da Lapa
Place Collected: Capelinha
Place Collected: Capelinha
Place Collected: Barra do Salinas
Place Collected: Minas Gerais
Place Collected: Nuristan Province